From ecc84fbc4fdb1d5c303ae97643feb193c8bad870 Mon Sep 17 00:00:00 2001 From: jatin Date: Tue, 3 Jun 2025 12:45:06 -0700 Subject: [PATCH 1/5] Updating spdlog --- .../common/chowdsp_logging/chowdsp_logging.h | 1 + .../third_party/spdlog/.clang-tidy | 1 - .../.github/workflows/{ci.yml => linux.yml} | 45 +- .../spdlog/.github/workflows/macos.yml | 38 + .../spdlog/.github/workflows/windows.yml | 148 + .../third_party/spdlog/.gitignore | 3 + .../third_party/spdlog/CMakeLists.txt | 67 +- .../third_party/spdlog/INSTALL | 23 +- .../third_party/spdlog/README.md | 48 +- .../third_party/spdlog/bench/async_bench.cpp | 2 +- .../third_party/spdlog/bench/bench.cpp | 4 +- .../third_party/spdlog/bench/latency.cpp | 2 +- .../third_party/spdlog/cmake/pch.h.in | 6 +- .../third_party/spdlog/cmake/utils.cmake | 15 +- .../third_party/spdlog/example/example.cpp | 31 +- .../third_party/spdlog/include/spdlog/async.h | 3 +- .../spdlog/include/spdlog/async_logger-inl.h | 4 +- .../spdlog/include/spdlog/cfg/env.h | 4 +- .../spdlog/include/spdlog/common-inl.h | 2 +- .../spdlog/include/spdlog/common.h | 11 +- .../include/spdlog/details/circular_q.h | 2 + .../include/spdlog/details/console_globals.h | 2 +- .../include/spdlog/details/file_helper-inl.h | 5 +- .../include/spdlog/details/log_msg-inl.h | 4 +- .../include/spdlog/details/log_msg_buffer.h | 2 +- .../include/spdlog/details/mpmc_blocking_q.h | 6 +- .../spdlog/include/spdlog/details/os-inl.h | 41 +- .../spdlog/include/spdlog/details/os.h | 4 + .../include/spdlog/details/registry-inl.h | 17 +- .../spdlog/include/spdlog/details/registry.h | 6 +- .../include/spdlog/details/thread_pool-inl.h | 3 +- .../spdlog/include/spdlog/fmt/bin_to_hex.h | 6 +- .../spdlog/include/spdlog/fmt/bundled/args.h | 394 +- .../spdlog/include/spdlog/fmt/bundled/base.h | 2989 +++++++ .../include/spdlog/fmt/bundled/chrono.h | 3841 ++++----- .../spdlog/include/spdlog/fmt/bundled/color.h | 1109 ++- .../include/spdlog/fmt/bundled/compile.h | 782 +- .../spdlog/include/spdlog/fmt/bundled/core.h | 3300 +------- .../spdlog/fmt/bundled/fmt.license.rst | 2 +- .../include/spdlog/fmt/bundled/format-inl.h | 3243 ++++---- .../include/spdlog/fmt/bundled/format.h | 6969 +++++++++-------- .../include/spdlog/fmt/bundled/locale.h | 2 - .../spdlog/include/spdlog/fmt/bundled/os.h | 690 +- .../include/spdlog/fmt/bundled/ostream.h | 272 +- .../include/spdlog/fmt/bundled/printf.h | 1050 ++- .../include/spdlog/fmt/bundled/ranges.h | 1183 +-- .../spdlog/include/spdlog/fmt/bundled/std.h | 763 +- .../spdlog/include/spdlog/fmt/bundled/xchar.h | 428 +- .../spdlog/include/spdlog/fmt/fmt.h | 12 +- .../spdlog/include/spdlog/logger-inl.h | 2 +- .../spdlog/include/spdlog/logger.h | 2 +- .../third_party/spdlog/include/spdlog/mdc.h | 52 + .../include/spdlog/pattern_formatter-inl.h | 78 +- .../include/spdlog/sinks/ansicolor_sink-inl.h | 23 +- .../include/spdlog/sinks/ansicolor_sink.h | 15 +- .../include/spdlog/sinks/base_sink-inl.h | 2 +- .../spdlog/include/spdlog/sinks/base_sink.h | 8 +- .../spdlog/sinks/basic_file_sink-inl.h | 8 +- .../include/spdlog/sinks/basic_file_sink.h | 1 + .../include/spdlog/sinks/callback_sink.h | 2 +- .../include/spdlog/sinks/daily_file_sink.h | 2 + .../include/spdlog/sinks/dup_filter_sink.h | 11 +- .../include/spdlog/sinks/hourly_file_sink.h | 2 + .../spdlog/include/spdlog/sinks/msvc_sink.h | 4 +- .../spdlog/include/spdlog/sinks/null_sink.h | 2 +- .../spdlog/sinks/rotating_file_sink-inl.h | 47 +- .../include/spdlog/sinks/rotating_file_sink.h | 34 +- .../spdlog/include/spdlog/sinks/sink-inl.h | 2 +- .../spdlog/sinks/stdout_color_sinks-inl.h | 2 +- .../include/spdlog/sinks/stdout_sinks-inl.h | 9 +- .../spdlog/include/spdlog/sinks/syslog_sink.h | 5 +- .../include/spdlog/sinks/wincolor_sink-inl.h | 11 +- .../spdlog/include/spdlog/spdlog-inl.h | 6 +- .../spdlog/include/spdlog/spdlog.h | 21 +- .../spdlog/include/spdlog/stopwatch.h | 4 + .../spdlog/include/spdlog/tweakme.h | 7 + .../spdlog/include/spdlog/version.h | 4 +- .../spdlog/src/bundled_fmtlib_format.cpp | 18 +- .../third_party/spdlog/tests/CMakeLists.txt | 17 +- .../third_party/spdlog/tests/includes.h | 6 + .../third_party/spdlog/tests/test_cfg.cpp | 9 + .../spdlog/tests/test_create_dir.cpp | 61 + .../spdlog/tests/test_custom_callbacks.cpp | 4 +- .../spdlog/tests/test_daily_logger.cpp | 8 +- .../spdlog/tests/test_file_logging.cpp | 90 +- .../third_party/spdlog/tests/test_misc.cpp | 61 +- .../spdlog/tests/test_pattern_formatter.cpp | 158 + .../spdlog/tests/test_registry.cpp | 13 + .../third_party/spdlog/tests/test_sink.h | 3 +- .../third_party/spdlog/tests/utils.cpp | 3 +- 90 files changed, 15131 insertions(+), 13271 deletions(-) rename modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/{ci.yml => linux.yml} (68%) create mode 100644 modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/macos.yml create mode 100644 modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/windows.yml create mode 100644 modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/base.h delete mode 100644 modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/locale.h create mode 100644 modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/mdc.h diff --git a/modules/common/chowdsp_logging/chowdsp_logging.h b/modules/common/chowdsp_logging/chowdsp_logging.h index 04acd3ff0..c9028f422 100644 --- a/modules/common/chowdsp_logging/chowdsp_logging.h +++ b/modules/common/chowdsp_logging/chowdsp_logging.h @@ -36,6 +36,7 @@ JUCE_BEGIN_IGNORE_WARNINGS_MSVC (4996) #include "third_party/spdlog/include/spdlog/sinks/stdout_color_sinks.h" #include "third_party/spdlog/include/spdlog/sinks/basic_file_sink.h" #include "third_party/spdlog/include/spdlog/sinks/msvc_sink.h" +#include "third_party/spdlog/include/spdlog/fmt/bundled/ranges.h" JUCE_END_IGNORE_WARNINGS_MSVC JUCE_END_IGNORE_WARNINGS_GCC_LIKE diff --git a/modules/common/chowdsp_logging/third_party/spdlog/.clang-tidy b/modules/common/chowdsp_logging/third_party/spdlog/.clang-tidy index 34239d6b1..bc50ee791 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/.clang-tidy +++ b/modules/common/chowdsp_logging/third_party/spdlog/.clang-tidy @@ -27,7 +27,6 @@ clang-analyzer-*, WarningsAsErrors: '' HeaderFilterRegex: '*spdlog/[^f].*' -AnalyzeTemporaryDtors: false FormatStyle: none CheckOptions: diff --git a/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/ci.yml b/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/linux.yml similarity index 68% rename from modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/ci.yml rename to modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/linux.yml index abd96b3e6..4e97d077c 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/ci.yml +++ b/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/linux.yml @@ -1,9 +1,15 @@ -name: ci +name: linux on: [push, pull_request] +permissions: + contents: read + jobs: - build_linux: + # ----------------------------------------------------------------------- + # Linux build matrix + # ----------------------------------------------------------------------- + build: runs-on: ubuntu-latest defaults: run: @@ -16,16 +22,18 @@ jobs: - { compiler: gcc, version: 9, build_type: Release, cppstd: 17 } - { compiler: gcc, version: 11, build_type: Debug, cppstd: 20 } - { compiler: gcc, version: 12, build_type: Release, cppstd: 20 } - - { compiler: clang, version: 12, build_type: Debug, cppstd: 17, asan: OFF } - - { compiler: clang, version: 15, build_type: Release, cppstd: 20, asan: OFF } + - { compiler: gcc, version: 12, build_type: Debug, cppstd: 20, asan: ON } + - { compiler: clang, version: 12, build_type: Debug, cppstd: 17 } + - { compiler: clang, version: 15, build_type: Release, cppstd: 20, tsan: ON } container: image: ${{ matrix.config.compiler == 'clang' && 'teeks99/clang-ubuntu' || matrix.config.compiler }}:${{ matrix.config.version }} - name: "${{ matrix.config.compiler}} ${{ matrix.config.version }} (C++${{ matrix.config.cppstd }}, ${{ matrix.config.build_type }})" + name: "${{ matrix.config.compiler}} ${{ matrix.config.version }} (C++${{ matrix.config.cppstd }} ${{ matrix.config.build_type }} ${{ matrix.config.asan == 'ON' && 'ASAN' || '' }}${{ matrix.config.tsan == 'ON' && 'TSAN' || '' }})" steps: - - uses: actions/checkout@main + - uses: actions/checkout@v4 - name: Setup run: | - apt-get update && apt-get install -y curl git pkg-config libsystemd-dev + apt-get update + apt-get install -y curl git pkg-config libsystemd-dev CMAKE_VERSION="3.24.2" curl -sSL https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}-linux-x86_64.sh -o install-cmake.sh chmod +x install-cmake.sh @@ -33,10 +41,8 @@ jobs: - name: Setup Compiler if: matrix.config.compiler == 'clang' run: | - if [[ "${{ matrix.config.version }}" -ge 4 ]]; then - scripts/ci_setup_clang.sh "${{ matrix.config.version }}" - echo "CXXFLAGS=-stdlib=libc++" >> $GITHUB_ENV - fi + scripts/ci_setup_clang.sh "${{ matrix.config.version }}" + echo "CXXFLAGS=-stdlib=libc++" >> $GITHUB_ENV echo "CC=clang-${{ matrix.config.version }}" >> $GITHUB_ENV echo "CXX=clang++-${{ matrix.config.version }}" >> $GITHUB_ENV - name: Build @@ -51,15 +57,19 @@ jobs: -DSPDLOG_BUILD_BENCH=OFF \ -DSPDLOG_BUILD_TESTS=ON \ -DSPDLOG_BUILD_TESTS_HO=OFF \ - -DSPDLOG_SANITIZE_ADDRESS=${{ matrix.config.asan || 'ON' }} - make -j2 - ctest -j2 --output-on-failure + -DSPDLOG_SANITIZE_ADDRESS=${{ matrix.config.asan || 'OFF' }} \ + -DSPDLOG_SANITIZE_THREAD=${{ matrix.config.tsan || 'OFF' }} + make -j 4 + ctest -j 4 --output-on-failure + # ----------------------------------------------------------------------- + # OS X build matrix + # ----------------------------------------------------------------------- build_osx: runs-on: macOS-latest name: "OS X Clang (C++11, Release)" steps: - - uses: actions/checkout@main + - uses: actions/checkout@v4 - name: Build run: | mkdir -p build && cd build @@ -73,6 +83,5 @@ jobs: -DSPDLOG_BUILD_TESTS=ON \ -DSPDLOG_BUILD_TESTS_HO=OFF \ -DSPDLOG_SANITIZE_ADDRESS=OFF - make -j2 - ctest -j2 --output-on-failure - + make -j 4 + ctest -j 4 --output-on-failure diff --git a/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/macos.yml b/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/macos.yml new file mode 100644 index 000000000..2d846f7f1 --- /dev/null +++ b/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/macos.yml @@ -0,0 +1,38 @@ +name: macos + +on: [push, pull_request] + +permissions: + contents: read + +jobs: + build: + runs-on: macOS-latest + name: "macOS Clang (C++11, Release)" + strategy: + fail-fast: true + matrix: + config: + - USE_STD_FORMAT: 'ON' + BUILD_EXAMPLE: 'OFF' + - USE_STD_FORMAT: 'OFF' + BUILD_EXAMPLE: 'ON' + + steps: + - uses: actions/checkout@v4 + - name: Build + run: | + mkdir -p build && cd build + cmake .. \ + -DCMAKE_BUILD_TYPE=Release \ + -DCMAKE_CXX_STANDARD=11 \ + -DSPDLOG_BUILD_EXAMPLE=${{ matrix.config.BUILD_EXAMPLE }} \ + -DSPDLOG_BUILD_EXAMPLE_HO=${{ matrix.config.BUILD_EXAMPLE }} \ + -DSPDLOG_BUILD_WARNINGS=ON \ + -DSPDLOG_BUILD_BENCH=OFF \ + -DSPDLOG_BUILD_TESTS=ON \ + -DSPDLOG_BUILD_TESTS_HO=OFF \ + -DSPDLOG_USE_STD_FORMAT=${{ matrix.config.USE_STD_FORMAT }} \ + -DSPDLOG_SANITIZE_ADDRESS=OFF + make -j 4 + ctest -j 4 --output-on-failure diff --git a/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/windows.yml b/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/windows.yml new file mode 100644 index 000000000..710e40903 --- /dev/null +++ b/modules/common/chowdsp_logging/third_party/spdlog/.github/workflows/windows.yml @@ -0,0 +1,148 @@ +name: windows + +on: [push, pull_request] + +permissions: + contents: read + +jobs: + build: + runs-on: windows-latest + strategy: + fail-fast: true + matrix: + config: + - GENERATOR: "Visual Studio 17 2022" + BUILD_TYPE: Release + BUILD_SHARED: 'ON' + FATAL_ERRORS: 'ON' + WCHAR: 'OFF' + WCHAR_FILES: 'OFF' + BUILD_EXAMPLE: 'OFF' + USE_STD_FORMAT: 'ON' + CXX_STANDARD: 20 + - GENERATOR: "Visual Studio 17 2022" + BUILD_TYPE: Release + BUILD_SHARED: 'ON' + FATAL_ERRORS: 'ON' + WCHAR: 'ON' + WCHAR_FILES: 'ON' + BUILD_EXAMPLE: 'OFF' + USE_STD_FORMAT: 'ON' + CXX_STANDARD: 20 + - GENERATOR: "Visual Studio 17 2022" + BUILD_TYPE: Release + BUILD_SHARED: 'ON' + FATAL_ERRORS: 'ON' + WCHAR: 'OFF' + WCHAR_FILES: 'OFF' + BUILD_EXAMPLE: 'ON' + USE_STD_FORMAT: 'OFF' + CXX_STANDARD: 17 + + steps: + - name: Checkout code + uses: actions/checkout@v4 + + - name: CMake ${{ matrix.config.GENERATOR }} CXX=${{matrix.config.CXX_STANDARD}} WCHAR=${{matrix.config.WCHAR_FILES}} STD_FORMAT=${{matrix.config.USE_STD_FORMAT}} + shell: pwsh + run: | + mkdir build + cd build + cmake -G "${{ matrix.config.GENERATOR }}" -A x64 ` + -D CMAKE_BUILD_TYPE=${{ matrix.config.BUILD_TYPE }} ` + -D BUILD_SHARED_LIBS=${{ matrix.config.BUILD_SHARED }} ` + -D SPDLOG_WCHAR_SUPPORT=${{ matrix.config.WCHAR }} ` + -D SPDLOG_WCHAR_FILENAMES=${{ matrix.config.WCHAR_FILES }} ` + -D SPDLOG_BUILD_EXAMPLE=${{ matrix.config.BUILD_EXAMPLE }} ` + -D SPDLOG_BUILD_EXAMPLE_HO=${{ matrix.config.BUILD_EXAMPLE }} ` + -D SPDLOG_BUILD_TESTS=ON ` + -D SPDLOG_BUILD_TESTS_HO=OFF ` + -D SPDLOG_BUILD_WARNINGS=${{ matrix.config.FATAL_ERRORS }} ` + -D SPDLOG_USE_STD_FORMAT=${{ matrix.config.USE_STD_FORMAT }} ` + -D CMAKE_CXX_STANDARD=${{ matrix.config.CXX_STANDARD }} .. + + - name: Build + shell: pwsh + run: | + cd build + cmake --build . --parallel --config ${{ matrix.config.BUILD_TYPE }} + + - name: Run Tests + shell: pwsh + env: + PATH: ${{ env.PATH }};${{ github.workspace }}\build\_deps\catch2-build\src\${{ matrix.config.BUILD_TYPE }};${{ github.workspace }}\build\${{ matrix.config.BUILD_TYPE }} + run: | + build\tests\${{ matrix.config.BUILD_TYPE }}\spdlog-utests.exe + + # ----------------------------------------------------------------------- + # MSVC 2019 build matrix + # ----------------------------------------------------------------------- + build_2019: + runs-on: windows-2019 + strategy: + fail-fast: true + matrix: + config: + - GENERATOR: "Visual Studio 16 2019" + BUILD_TYPE: Release + BUILD_SHARED: 'ON' + FATAL_ERRORS: 'ON' + WCHAR: 'OFF' + WCHAR_FILES: 'OFF' + BUILD_EXAMPLE: 'ON' + USE_STD_FORMAT: 'OFF' + CXX_STANDARD: 17 + - GENERATOR: "Visual Studio 16 2019" + BUILD_TYPE: Release + BUILD_SHARED: 'ON' + FATAL_ERRORS: 'ON' + WCHAR: 'OFF' + WCHAR_FILES: 'OFF' + BUILD_EXAMPLE: 'ON' + USE_STD_FORMAT: 'OFF' + CXX_STANDARD: 14 + - GENERATOR: "Visual Studio 16 2019" + BUILD_TYPE: Release + BUILD_SHARED: 'ON' + FATAL_ERRORS: 'ON' + WCHAR: 'OFF' + WCHAR_FILES: 'OFF' + BUILD_EXAMPLE: 'ON' + USE_STD_FORMAT: 'OFF' + CXX_STANDARD: 11 + + steps: + - name: Checkout code + uses: actions/checkout@v4 + + - name: CMake ${{ matrix.config.GENERATOR }} CXX=${{matrix.config.CXX_STANDARD}} WCHAR=${{matrix.config.WCHAR_FILES}} STD_FORMAT=${{matrix.config.USE_STD_FORMAT}} + shell: pwsh + run: | + mkdir build + cd build + cmake -G "${{ matrix.config.GENERATOR }}" -A x64 ` + -D CMAKE_BUILD_TYPE=${{ matrix.config.BUILD_TYPE }} ` + -D BUILD_SHARED_LIBS=${{ matrix.config.BUILD_SHARED }} ` + -D SPDLOG_WCHAR_SUPPORT=${{ matrix.config.WCHAR }} ` + -D SPDLOG_WCHAR_FILENAMES=${{ matrix.config.WCHAR_FILES }} ` + -D SPDLOG_BUILD_EXAMPLE=${{ matrix.config.BUILD_EXAMPLE }} ` + -D SPDLOG_BUILD_EXAMPLE_HO=${{ matrix.config.BUILD_EXAMPLE }} ` + -D SPDLOG_BUILD_TESTS=ON ` + -D SPDLOG_BUILD_TESTS_HO=OFF ` + -D SPDLOG_BUILD_WARNINGS=${{ matrix.config.FATAL_ERRORS }} ` + -D SPDLOG_USE_STD_FORMAT=${{ matrix.config.USE_STD_FORMAT }} ` + -D CMAKE_CXX_STANDARD=${{ matrix.config.CXX_STANDARD }} .. + + - name: Build + shell: pwsh + run: | + cd build + cmake --build . --parallel --config ${{ matrix.config.BUILD_TYPE }} + + - name: Run Tests + shell: pwsh + env: + PATH: ${{ env.PATH }};${{ github.workspace }}\build\_deps\catch2-build\src\${{ matrix.config.BUILD_TYPE }};${{ github.workspace }}\build\${{ matrix.config.BUILD_TYPE }} + run: | + build\tests\${{ matrix.config.BUILD_TYPE }}\spdlog-utests.exe diff --git a/modules/common/chowdsp_logging/third_party/spdlog/.gitignore b/modules/common/chowdsp_logging/third_party/spdlog/.gitignore index 1dc3436c8..25f272c96 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/.gitignore +++ b/modules/common/chowdsp_logging/third_party/spdlog/.gitignore @@ -93,3 +93,6 @@ cmake-build-*/ # macos *.DS_store *.xcodeproj/ +/.vs +/out/build +/CMakeSettings.json diff --git a/modules/common/chowdsp_logging/third_party/spdlog/CMakeLists.txt b/modules/common/chowdsp_logging/third_party/spdlog/CMakeLists.txt index d4b3c1b2b..3368e4ddf 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/CMakeLists.txt +++ b/modules/common/chowdsp_logging/third_party/spdlog/CMakeLists.txt @@ -1,6 +1,6 @@ # Copyright(c) 2019 spdlog authors Distributed under the MIT License (http://opensource.org/licenses/MIT) -cmake_minimum_required(VERSION 3.11) +cmake_minimum_required(VERSION 3.10...3.21) # --------------------------------------------------------------------------------------- # Start spdlog project @@ -33,14 +33,9 @@ elseif(NOT CMAKE_CXX_STANDARD) set(CMAKE_CXX_STANDARD_REQUIRED ON) endif() -# make sure __cplusplus is defined when using msvc and enable parallel build -if(MSVC) - string(APPEND CMAKE_CXX_FLAGS " /Zc:__cplusplus /MP") -endif() - set(CMAKE_CXX_EXTENSIONS OFF) -if(CMAKE_SYSTEM_NAME MATCHES "CYGWIN" OR CMAKE_SYSTEM_NAME MATCHES "MSYS") +if(CMAKE_SYSTEM_NAME MATCHES "CYGWIN" OR CMAKE_SYSTEM_NAME MATCHES "MSYS" OR CMAKE_SYSTEM_NAME MATCHES "MINGW") set(CMAKE_CXX_EXTENSIONS ON) endif() @@ -80,6 +75,10 @@ option(SPDLOG_BUILD_BENCH "Build benchmarks (Requires https://github.com/google/ # sanitizer options option(SPDLOG_SANITIZE_ADDRESS "Enable address sanitizer in tests" OFF) +option(SPDLOG_SANITIZE_THREAD "Enable thread sanitizer in tests" OFF) +if(SPDLOG_SANITIZE_ADDRESS AND SPDLOG_SANITIZE_THREAD) + message(FATAL_ERROR "SPDLOG_SANITIZE_ADDRESS and SPDLOG_SANITIZE_THREAD are mutually exclusive") +endif() # warning options option(SPDLOG_BUILD_WARNINGS "Enable compiler warnings" OFF) @@ -108,9 +107,15 @@ endif() if(WIN32) option(SPDLOG_WCHAR_SUPPORT "Support wchar api" OFF) option(SPDLOG_WCHAR_FILENAMES "Support wchar filenames" OFF) + option(SPDLOG_WCHAR_CONSOLE "Support wchar output to console" OFF) else() set(SPDLOG_WCHAR_SUPPORT OFF CACHE BOOL "non supported option" FORCE) set(SPDLOG_WCHAR_FILENAMES OFF CACHE BOOL "non supported option" FORCE) + set(SPDLOG_WCHAR_CONSOLE OFF CACHE BOOL "non supported option" FORCE) +endif() + +if(MSVC) + option(SPDLOG_MSVC_UTF8 "Enable/disable msvc /utf-8 flag required by fmt lib" ON) endif() if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux") @@ -127,6 +132,7 @@ option( "prevent spdlog from using of std::atomic log levels (use only if your code never modifies log levels concurrently" OFF) option(SPDLOG_DISABLE_DEFAULT_LOGGER "Disable default logger creation" OFF) +option(SPDLOG_FWRITE_UNLOCKED "Use the unlocked variant of fwrite. Leave this on unless your libc doesn't have it" ON) # clang-tidy option(SPDLOG_TIDY "run clang-tidy" OFF) @@ -159,12 +165,12 @@ if(SPDLOG_BUILD_SHARED OR BUILD_SHARED_LIBS) endif() add_library(spdlog SHARED ${SPDLOG_SRCS} ${SPDLOG_ALL_HEADERS}) target_compile_definitions(spdlog PUBLIC SPDLOG_SHARED_LIB) - if(MSVC) + if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") target_compile_options(spdlog PUBLIC $<$,$>>:/wd4251 /wd4275>) endif() if(NOT SPDLOG_USE_STD_FORMAT AND NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO) - target_compile_definitions(spdlog PRIVATE FMT_EXPORT PUBLIC FMT_SHARED) + target_compile_definitions(spdlog PRIVATE FMT_LIB_EXPORT PUBLIC FMT_SHARED) endif() else() add_library(spdlog STATIC ${SPDLOG_SRCS} ${SPDLOG_ALL_HEADERS}) @@ -192,6 +198,13 @@ if(COMMAND target_precompile_headers AND SPDLOG_ENABLE_PCH) target_precompile_headers(spdlog PRIVATE ${PROJECT_BINARY_DIR}/spdlog_pch.h) endif() +# sanitizer support +if(SPDLOG_SANITIZE_ADDRESS) + spdlog_enable_addr_sanitizer(spdlog) +elseif(SPDLOG_SANITIZE_THREAD) + spdlog_enable_thread_sanitizer(spdlog) +endif() + # --------------------------------------------------------------------------------------- # Header only version # --------------------------------------------------------------------------------------- @@ -213,7 +226,7 @@ if(SPDLOG_FMT_EXTERNAL OR SPDLOG_FMT_EXTERNAL_HO) target_compile_definitions(spdlog PUBLIC SPDLOG_FMT_EXTERNAL) target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_FMT_EXTERNAL) - # use external fmt-header-nly + # use external fmt-header-only if(SPDLOG_FMT_EXTERNAL_HO) target_link_libraries(spdlog PUBLIC fmt::fmt-header-only) target_link_libraries(spdlog_header_only INTERFACE fmt::fmt-header-only) @@ -225,6 +238,22 @@ if(SPDLOG_FMT_EXTERNAL OR SPDLOG_FMT_EXTERNAL_HO) set(PKG_CONFIG_REQUIRES fmt) # add dependency to pkg-config endif() +# --------------------------------------------------------------------------------------- +# Check if fwrite_unlocked/_fwrite_nolock is available +# --------------------------------------------------------------------------------------- +if(SPDLOG_FWRITE_UNLOCKED) + include(CheckSymbolExists) + if(WIN32) + check_symbol_exists(_fwrite_nolock "stdio.h" HAVE_FWRITE_UNLOCKED) + else() + check_symbol_exists(fwrite_unlocked "stdio.h" HAVE_FWRITE_UNLOCKED) + endif() + if(HAVE_FWRITE_UNLOCKED) + target_compile_definitions(spdlog PRIVATE SPDLOG_FWRITE_UNLOCKED) + target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_FWRITE_UNLOCKED) + endif() +endif() + # --------------------------------------------------------------------------------------- # Add required libraries for Android CMake build # --------------------------------------------------------------------------------------- @@ -237,9 +266,11 @@ endif() # Misc definitions according to tweak options # --------------------------------------------------------------------------------------- set(SPDLOG_WCHAR_TO_UTF8_SUPPORT ${SPDLOG_WCHAR_SUPPORT}) +set(SPDLOG_UTF8_TO_WCHAR_CONSOLE ${SPDLOG_WCHAR_CONSOLE}) foreach( SPDLOG_OPTION SPDLOG_WCHAR_TO_UTF8_SUPPORT + SPDLOG_UTF8_TO_WCHAR_CONSOLE SPDLOG_WCHAR_FILENAMES SPDLOG_NO_EXCEPTIONS SPDLOG_CLOCK_COARSE @@ -255,17 +286,31 @@ foreach( endif() endforeach() +if(MSVC) + target_compile_options(spdlog PRIVATE "/Zc:__cplusplus") + target_compile_options(spdlog_header_only INTERFACE "/Zc:__cplusplus") + if(SPDLOG_MSVC_UTF8) + # fmtlib requires the /utf-8 flag when building with msvc. see https://github.com/fmtlib/fmt/pull/4159 on the + # purpose of the additional + # "$<$,$>" + target_compile_options(spdlog PUBLIC $<$,$>:/utf-8>) + target_compile_options(spdlog_header_only + INTERFACE $<$,$>:/utf-8>) + endif() +endif() + # --------------------------------------------------------------------------------------- # If exceptions are disabled, disable them in the bundled fmt as well # --------------------------------------------------------------------------------------- if(SPDLOG_NO_EXCEPTIONS) if(NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO) - target_compile_definitions(spdlog PUBLIC FMT_EXCEPTIONS=0) + target_compile_definitions(spdlog PUBLIC FMT_USE_EXCEPTIONS=0) endif() if(NOT MSVC) target_compile_options(spdlog PRIVATE -fno-exceptions) else() target_compile_options(spdlog PRIVATE /EHs-c-) + target_compile_definitions(spdlog PRIVATE _HAS_EXCEPTIONS=0) endif() endif() # --------------------------------------------------------------------------------------- diff --git a/modules/common/chowdsp_logging/third_party/spdlog/INSTALL b/modules/common/chowdsp_logging/third_party/spdlog/INSTALL index afe221930..4b6fb06bf 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/INSTALL +++ b/modules/common/chowdsp_logging/third_party/spdlog/INSTALL @@ -1,24 +1,27 @@ -Header only version: +Header Only Version ================================================================== -Just copy the files to your build tree and use a C++11 compiler. +Just copy the files to your build tree and use a C++11 compiler. Or use CMake: +``` add_executable(example_header_only example.cpp) target_link_libraries(example_header_only spdlog::spdlog_header_only) +``` - -Compiled library version: +Compiled Library Version ================================================================== CMake: +``` add_executable(example example.cpp) target_link_libraries(example spdlog::spdlog) +``` Or copy files src/*.cpp to your build tree and pass the -DSPDLOG_COMPILED_LIB to the compiler. -Tested on: +Important Information for Compilation: +================================================================== +* If you encounter compilation errors with gcc 4.8.x, please note that gcc 4.8.x does not fully support C++11. In such cases, consider upgrading your compiler or using a different version that fully supports C++11 standards + +Tested on: gcc 4.8.1 and above clang 3.5 -Visual Studio 2013 - - - - +Visual Studio 2013 \ No newline at end of file diff --git a/modules/common/chowdsp_logging/third_party/spdlog/README.md b/modules/common/chowdsp_logging/third_party/spdlog/README.md index ffb6da304..c8644915b 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/README.md +++ b/modules/common/chowdsp_logging/third_party/spdlog/README.md @@ -1,18 +1,25 @@ # spdlog -Very fast, header-only/compiled, C++ logging library. [![ci](https://github.com/gabime/spdlog/actions/workflows/ci.yml/badge.svg)](https://github.com/gabime/spdlog/actions/workflows/ci.yml)  [![Build status](https://ci.appveyor.com/api/projects/status/d2jnxclg20vd0o50?svg=true&branch=v1.x)](https://ci.appveyor.com/project/gabime/spdlog) [![Release](https://img.shields.io/github/release/gabime/spdlog.svg)](https://github.com/gabime/spdlog/releases/latest) + +[![ci](https://github.com/gabime/spdlog/actions/workflows/linux.yml/badge.svg)](https://github.com/gabime/spdlog/actions/workflows/linux.yml)  +[![ci](https://github.com/gabime/spdlog/actions/workflows/windows.yml/badge.svg)](https://github.com/gabime/spdlog/actions/workflows/windows.yml)  +[![ci](https://github.com/gabime/spdlog/actions/workflows/macos.yml/badge.svg)](https://github.com/gabime/spdlog/actions/workflows/macos.yml)  +[![Build status](https://ci.appveyor.com/api/projects/status/d2jnxclg20vd0o50?svg=true&branch=v1.x)](https://ci.appveyor.com/project/gabime/spdlog) [![Release](https://img.shields.io/github/release/gabime/spdlog.svg)](https://github.com/gabime/spdlog/releases/latest) + +Fast C++ logging library + ## Install #### Header-only version -Copy the include [folder](https://github.com/gabime/spdlog/tree/v1.x/include/spdlog) to your build tree and use a C++11 compiler. +Copy the include [folder](include/spdlog) to your build tree and use a C++11 compiler. #### Compiled version (recommended - much faster compile times) ```console $ git clone https://github.com/gabime/spdlog.git $ cd spdlog && mkdir build && cd build -$ cmake .. && make -j +$ cmake .. && cmake --build . ``` -see example [CMakeLists.txt](https://github.com/gabime/spdlog/blob/v1.x/example/CMakeLists.txt) on how to use. +see example [CMakeLists.txt](example/CMakeLists.txt) on how to use. ## Platforms * Linux, FreeBSD, OpenBSD, Solaris, AIX @@ -29,8 +36,9 @@ see example [CMakeLists.txt](https://github.com/gabime/spdlog/blob/v1.x/example/ * Gentoo: `emerge dev-libs/spdlog` * Arch Linux: `pacman -S spdlog` * openSUSE: `sudo zypper in spdlog-devel` +* ALT Linux: `apt-get install libspdlog-devel` * vcpkg: `vcpkg install spdlog` -* conan: `spdlog/[>=1.4.1]` +* conan: `conan install --requires=spdlog/[*]` * conda: `conda install -c conda-forge spdlog` * build2: ```depends: spdlog ^1.8.2``` @@ -40,7 +48,7 @@ see example [CMakeLists.txt](https://github.com/gabime/spdlog/blob/v1.x/example/ * Headers only or compiled * Feature-rich formatting, using the excellent [fmt](https://github.com/fmtlib/fmt) library. * Asynchronous mode (optional) -* [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) formatting. +* [Custom](https://github.com/gabime/spdlog/wiki/Custom-formatting) formatting. * Multi/Single threaded loggers. * Various log targets: * Rotating log files. @@ -50,7 +58,7 @@ see example [CMakeLists.txt](https://github.com/gabime/spdlog/blob/v1.x/example/ * Windows event log. * Windows debugger (```OutputDebugString(..)```). * Log to Qt widgets ([example](#log-to-qt-with-nice-colors)). - * Easily [extendable](https://github.com/gabime/spdlog/wiki/4.-Sinks#implementing-your-own-sink) with custom log targets. + * Easily [extendable](https://github.com/gabime/spdlog/wiki/Sinks#implementing-your-own-sink) with custom log targets. * Log filtering - log levels can be modified at runtime as well as compile time. * Support for loading log levels from argv or environment var. * [Backtrace](#backtrace-support) support - store debug messages in a ring buffer and display them later on demand. @@ -273,6 +281,7 @@ void async_example() --- #### Asynchronous logger with multi sinks ```c++ +#include "spdlog/async.h" #include "spdlog/sinks/stdout_color_sinks.h" #include "spdlog/sinks/rotating_file_sink.h" @@ -295,7 +304,7 @@ struct fmt::formatter : fmt::formatter { auto format(my_type my, format_context &ctx) const -> decltype(ctx.out()) { - return format_to(ctx.out(), "[my_type i={}]", my.i); + return fmt::format_to(ctx.out(), "[my_type i={}]", my.i); } }; @@ -379,6 +388,9 @@ void android_example() int main (int argc, char *argv[]) { spdlog::cfg::load_env_levels(); + // or specify the env variable name: + // MYAPP_LEVEL=info,mylogger=trace && ./example + // spdlog::cfg::load_env_levels("MYAPP_LEVEL"); // or from the command line: // ./example SPDLOG_LEVEL=info,mylogger=trace // #include "spdlog/cfg/argv.h" // for loading levels from argv @@ -436,11 +448,26 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) logger->info("Some info message"); } ``` +--- +#### Mapped Diagnostic Context +```c++ +// Mapped Diagnostic Context (MDC) is a map that stores key-value pairs (string values) in thread local storage. +// Each thread maintains its own MDC, which loggers use to append diagnostic information to log outputs. +// Note: it is not supported in asynchronous mode due to its reliance on thread-local storage. +#include "spdlog/mdc.h" +void mdc_example() +{ + spdlog::mdc::put("key1", "value1"); + spdlog::mdc::put("key2", "value2"); + // if not using the default format, use the %& formatter to print mdc data + // spdlog::set_pattern("[%H:%M:%S %z] [%^%L%$] [%&] %v"); +} +``` --- ## Benchmarks -Below are some [benchmarks](https://github.com/gabime/spdlog/blob/v1.x/bench/bench.cpp) done in Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz +Below are some [benchmarks](bench/bench.cpp) done in Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz #### Synchronous mode ``` @@ -492,7 +519,8 @@ Below are some [benchmarks](https://github.com/gabime/spdlog/blob/v1.x/bench/ben ``` ## Documentation -Documentation can be found in the [wiki](https://github.com/gabime/spdlog/wiki/1.-QuickStart) pages. + +Documentation can be found in the [wiki](https://github.com/gabime/spdlog/wiki) pages. --- diff --git a/modules/common/chowdsp_logging/third_party/spdlog/bench/async_bench.cpp b/modules/common/chowdsp_logging/third_party/spdlog/bench/async_bench.cpp index a136c7bd9..dcd24b29e 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/bench/async_bench.cpp +++ b/modules/common/chowdsp_logging/third_party/spdlog/bench/async_bench.cpp @@ -160,7 +160,7 @@ void bench_mt(int howmany, std::shared_ptr logger, int thread_co for (auto &t : threads) { t.join(); - }; + } auto delta = high_resolution_clock::now() - start; auto delta_d = duration_cast>(delta).count(); diff --git a/modules/common/chowdsp_logging/third_party/spdlog/bench/bench.cpp b/modules/common/chowdsp_logging/third_party/spdlog/bench/bench.cpp index 609f49338..ceb0edf2a 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/bench/bench.cpp +++ b/modules/common/chowdsp_logging/third_party/spdlog/bench/bench.cpp @@ -181,7 +181,7 @@ void bench_mt(int howmany, std::shared_ptr log, size_t thread_co for (auto &t : threads) { t.join(); - }; + } auto delta = high_resolution_clock::now() - start; auto delta_d = duration_cast>(delta).count(); @@ -243,4 +243,4 @@ odio. Maecenas malesuada quam ex, posuere congue nibh turpis duis."; delta_d)); } -*/ \ No newline at end of file +*/ diff --git a/modules/common/chowdsp_logging/third_party/spdlog/bench/latency.cpp b/modules/common/chowdsp_logging/third_party/spdlog/bench/latency.cpp index f63251e39..1999317a3 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/bench/latency.cpp +++ b/modules/common/chowdsp_logging/third_party/spdlog/bench/latency.cpp @@ -121,7 +121,7 @@ int main(int argc, char *argv[]) { tracing_null_logger_st->enable_backtrace(64); benchmark::RegisterBenchmark("null_sink_st/backtrace", bench_logger, tracing_null_logger_st); -#ifdef __linux +#ifdef __linux__ bench_dev_null(); #endif // __linux__ diff --git a/modules/common/chowdsp_logging/third_party/spdlog/cmake/pch.h.in b/modules/common/chowdsp_logging/third_party/spdlog/cmake/pch.h.in index a5f941507..0592ee9de 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/cmake/pch.h.in +++ b/modules/common/chowdsp_logging/third_party/spdlog/cmake/pch.h.in @@ -10,7 +10,6 @@ // details/file_helper-inl.h // details/os-inl.h -// fmt/bundled/core.h // fmt/bundled/posix.h // logger-inl.h // sinks/daily_file_sink.h @@ -23,7 +22,6 @@ // details/os-inl.h // details/pattern_formatter-inl.h -// fmt/bundled/core.h // fmt/bundled/format-inl.h #include @@ -73,7 +71,6 @@ // details/registry.h // details/tcp_client-windows.h // details/tcp_client.h -// fmt/bundled/core.h // sinks/android_sink.h // sinks/ansicolor_sink.h // sinks/basic_file_sink.h @@ -150,7 +147,6 @@ // common.h // details/fmt_helper.h -// fmt/bundled/core.h // fmt/bundled/ranges.h #include @@ -255,4 +251,4 @@ #include // spdlog -#include \ No newline at end of file +#include diff --git a/modules/common/chowdsp_logging/third_party/spdlog/cmake/utils.cmake b/modules/common/chowdsp_logging/third_party/spdlog/cmake/utils.cmake index 85fcd80f7..8926657c9 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/cmake/utils.cmake +++ b/modules/common/chowdsp_logging/third_party/spdlog/cmake/utils.cmake @@ -49,7 +49,7 @@ function(spdlog_enable_warnings target_name) endfunction() # Enable address sanitizer (gcc/clang only) -function(spdlog_enable_sanitizer target_name) +function(spdlog_enable_addr_sanitizer target_name) if(NOT CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang") message(FATAL_ERROR "Sanitizer supported only for gcc/clang") endif() @@ -58,5 +58,16 @@ function(spdlog_enable_sanitizer target_name) target_compile_options(${target_name} PRIVATE -fno-sanitize=signed-integer-overflow) target_compile_options(${target_name} PRIVATE -fno-sanitize-recover=all) target_compile_options(${target_name} PRIVATE -fno-omit-frame-pointer) - target_link_libraries(${target_name} PRIVATE -fsanitize=address,undefined -fuse-ld=gold) + target_link_libraries(${target_name} PRIVATE -fsanitize=address,undefined) +endfunction() + +# Enable thread sanitizer (gcc/clang only) +function(spdlog_enable_thread_sanitizer target_name) + if(NOT CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang") + message(FATAL_ERROR "Sanitizer supported only for gcc/clang") + endif() + message(STATUS "Thread sanitizer enabled") + target_compile_options(${target_name} PRIVATE -fsanitize=thread) + target_compile_options(${target_name} PRIVATE -fno-omit-frame-pointer) + target_link_libraries(${target_name} PRIVATE -fsanitize=thread) endfunction() diff --git a/modules/common/chowdsp_logging/third_party/spdlog/example/example.cpp b/modules/common/chowdsp_logging/third_party/spdlog/example/example.cpp index 221094633..3925fb815 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/example/example.cpp +++ b/modules/common/chowdsp_logging/third_party/spdlog/example/example.cpp @@ -26,6 +26,7 @@ void udp_example(); void custom_flags_example(); void file_events_example(); void replace_default_logger_example(); +void mdc_example(); #include "spdlog/spdlog.h" #include "spdlog/cfg/env.h" // support for loading levels from the environment variable @@ -84,6 +85,7 @@ int main(int, char *[]) { custom_flags_example(); file_events_example(); replace_default_logger_example(); + mdc_example(); // Flush all *registered* loggers using a worker thread every 3 seconds. // note: registered loggers *must* be thread safe for this to work correctly! @@ -146,6 +148,9 @@ void load_levels_example() { // Set the log level to "info" and mylogger to "trace": // SPDLOG_LEVEL=info,mylogger=trace && ./example spdlog::cfg::load_env_levels(); + // or specify the env variable name: + // MYAPP_LEVEL=info,mylogger=trace && ./example + // spdlog::cfg::load_env_levels("MYAPP_LEVEL"); // or from command line: // ./example SPDLOG_LEVEL=info,mylogger=trace // #include "spdlog/cfg/argv.h" // for loading levels from argv @@ -264,13 +269,13 @@ void multi_sink_example() { struct my_type { int i = 0; explicit my_type(int i) - : i(i){}; + : i(i) {} }; #ifndef SPDLOG_USE_STD_FORMAT // when using fmtlib template <> struct fmt::formatter : fmt::formatter { - auto format(my_type my, format_context &ctx) -> decltype(ctx.out()) { + auto format(my_type my, format_context &ctx) const -> decltype(ctx.out()) { return fmt::format_to(ctx.out(), "[my_type i={}]", my.i); } }; @@ -279,7 +284,7 @@ struct fmt::formatter : fmt::formatter { template <> struct std::formatter : std::formatter { auto format(my_type my, format_context &ctx) const -> decltype(ctx.out()) { - return format_to(ctx.out(), "[my_type i={}]", my.i); + return std::format_to(ctx.out(), "[my_type i={}]", my.i); } }; #endif @@ -376,3 +381,23 @@ void replace_default_logger_example() { spdlog::set_default_logger(old_logger); } + +// Mapped Diagnostic Context (MDC) is a map that stores key-value pairs (string values) in thread +// local storage. Each thread maintains its own MDC, which loggers use to append diagnostic +// information to log outputs. Note: it is not supported in asynchronous mode due to its reliance on +// thread-local storage. + +#ifndef SPDLOG_NO_TLS + #include "spdlog/mdc.h" +void mdc_example() { + spdlog::mdc::put("key1", "value1"); + spdlog::mdc::put("key2", "value2"); + // if not using the default format, you can use the %& formatter to print mdc data as well + spdlog::set_pattern("[%H:%M:%S %z] [%^%L%$] [%&] %v"); + spdlog::info("Some log message with context"); +} +#else +void mdc_example() { + // if TLS feature is disabled +} +#endif diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/async.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/async.h index e96abd199..92fcd9a7d 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/async.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/async.h @@ -89,8 +89,7 @@ inline void init_thread_pool(size_t q_size, } inline void init_thread_pool(size_t q_size, size_t thread_count) { - init_thread_pool( - q_size, thread_count, [] {}, [] {}); + init_thread_pool(q_size, thread_count, [] {}, [] {}); } // get the global thread pool. diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/async_logger-inl.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/async_logger-inl.h index 1e7947985..a681d97c6 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/async_logger-inl.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/async_logger-inl.h @@ -33,7 +33,7 @@ SPDLOG_INLINE spdlog::async_logger::async_logger(std::string logger_name, // send the log message to the thread pool SPDLOG_INLINE void spdlog::async_logger::sink_it_(const details::log_msg &msg){ SPDLOG_TRY{if (auto pool_ptr = thread_pool_.lock()){ - pool_ptr->post_log(shared_from_this(), msg, overflow_policy_); + pool_ptr -> post_log(shared_from_this(), msg, overflow_policy_); } else { throw_spdlog_ex("async log: thread pool doesn't exist anymore"); @@ -45,7 +45,7 @@ SPDLOG_LOGGER_CATCH(msg.source) // send flush request to the thread pool SPDLOG_INLINE void spdlog::async_logger::flush_(){ SPDLOG_TRY{if (auto pool_ptr = thread_pool_.lock()){ - pool_ptr->post_flush(shared_from_this(), overflow_policy_); + pool_ptr -> post_flush(shared_from_this(), overflow_policy_); } else { throw_spdlog_ex("async flush: thread pool doesn't exist anymore"); diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/cfg/env.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/cfg/env.h index 6e5541454..47bf61c72 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/cfg/env.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/cfg/env.h @@ -25,8 +25,8 @@ namespace spdlog { namespace cfg { -inline void load_env_levels() { - auto env_val = details::os::getenv("SPDLOG_LEVEL"); +inline void load_env_levels(const char* var = "SPDLOG_LEVEL") { + auto env_val = details::os::getenv(var); if (!env_val.empty()) { helpers::load_levels(env_val); } diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/common-inl.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/common-inl.h index a8a0453c1..414d6a41b 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/common-inl.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/common-inl.h @@ -4,7 +4,7 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY - #include + #include "../common.h" #endif #include diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/common.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/common.h index 5d01ff156..a9a202041 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/common.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/common.h @@ -54,7 +54,7 @@ #define SPDLOG_FMT_RUNTIME(format_string) fmt::runtime(format_string) #define SPDLOG_FMT_STRING(format_string) FMT_STRING(format_string) #if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) - #include + #include "fmt/xchar.h" #endif #else #define SPDLOG_FMT_RUNTIME(format_string) format_string @@ -319,7 +319,7 @@ struct source_loc { line{line_in}, funcname{funcname_in} {} - SPDLOG_CONSTEXPR bool empty() const SPDLOG_NOEXCEPT { return line == 0; } + SPDLOG_CONSTEXPR bool empty() const SPDLOG_NOEXCEPT { return line <= 0; } const char *filename{nullptr}; int line{0}; const char *funcname{nullptr}; @@ -364,12 +364,7 @@ SPDLOG_CONSTEXPR_FUNC spdlog::wstring_view_t to_string_view(spdlog::wstring_view } #endif -#ifndef SPDLOG_USE_STD_FORMAT -template -inline fmt::basic_string_view to_string_view(fmt::basic_format_string fmt) { - return fmt; -} -#elif __cpp_lib_format >= 202207L +#if defined(SPDLOG_USE_STD_FORMAT) && __cpp_lib_format >= 202207L template SPDLOG_CONSTEXPR_FUNC std::basic_string_view to_string_view( std::basic_format_string fmt) SPDLOG_NOEXCEPT { diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/circular_q.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/circular_q.h index ab068dff9..21134fe58 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/circular_q.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/circular_q.h @@ -7,6 +7,8 @@ #include #include +#include "../common.h" + namespace spdlog { namespace details { template diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/console_globals.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/console_globals.h index d5eec0171..76f693cde 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/console_globals.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/console_globals.h @@ -4,7 +4,7 @@ #pragma once #include -#include "null_mutex.h" +#include "../details/null_mutex.h" namespace spdlog { namespace details { diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/file_helper-inl.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/file_helper-inl.h index fc9fc3efd..c7b961f61 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/file_helper-inl.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/file_helper-inl.h @@ -4,7 +4,7 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY - #include + #include "../details/file_helper.h" #endif #include "../common.h" @@ -101,7 +101,8 @@ SPDLOG_INLINE void file_helper::write(const memory_buf_t &buf) { if (fd_ == nullptr) return; size_t msg_size = buf.size(); auto data = buf.data(); - if (std::fwrite(data, 1, msg_size, fd_) != msg_size) { + + if (!details::os::fwrite_bytes(data, msg_size, fd_)) { throw_spdlog_ex("Failed writing to file " + os::filename_to_str(filename_), errno); } } diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/log_msg-inl.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/log_msg-inl.h index 9b15982b3..ceb5e9987 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/log_msg-inl.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/log_msg-inl.h @@ -4,10 +4,10 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY - #include + #include "../details/log_msg.h" #endif -#include "os.h" +#include "../details/os.h" namespace spdlog { namespace details { diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/log_msg_buffer.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/log_msg_buffer.h index 429823fb9..7a7a0e9ff 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/log_msg_buffer.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/log_msg_buffer.h @@ -3,7 +3,7 @@ #pragma once -#include "log_msg.h" +#include "../details/log_msg.h" namespace spdlog { namespace details { diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/mpmc_blocking_q.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/mpmc_blocking_q.h index 5a474bf33..5848cca83 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/mpmc_blocking_q.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/mpmc_blocking_q.h @@ -148,19 +148,19 @@ class mpmc_blocking_queue { #endif size_t overrun_counter() { - std::unique_lock lock(queue_mutex_); + std::lock_guard lock(queue_mutex_); return q_.overrun_counter(); } size_t discard_counter() { return discard_counter_.load(std::memory_order_relaxed); } size_t size() { - std::unique_lock lock(queue_mutex_); + std::lock_guard lock(queue_mutex_); return q_.size(); } void reset_overrun_counter() { - std::unique_lock lock(queue_mutex_); + std::lock_guard lock(queue_mutex_); q_.reset_overrun_counter(); } diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/os-inl.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/os-inl.h index 244b2ab41..9218a7835 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/os-inl.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/os-inl.h @@ -4,7 +4,7 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY - #include + #include "../details/os.h" #endif #include "../common.h" @@ -265,9 +265,10 @@ SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm) { return offset; #else - #if defined(sun) || defined(__sun) || defined(_AIX) || \ - (defined(__NEWLIB__) && !defined(__TM_GMTOFF)) || \ - (!defined(_BSD_SOURCE) && !defined(_GNU_SOURCE)) + #if defined(sun) || defined(__sun) || defined(_AIX) || \ + (defined(__NEWLIB__) && !defined(__TM_GMTOFF)) || \ + (!defined(__APPLE__) && !defined(_BSD_SOURCE) && !defined(_GNU_SOURCE) && \ + (!defined(_POSIX_VERSION) || (_POSIX_VERSION < 202405L))) // 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris struct helper { static long int calculate_gmt_offset(const std::tm &localtm = details::os::localtime(), @@ -439,7 +440,7 @@ SPDLOG_INLINE bool in_terminal(FILE *file) SPDLOG_NOEXCEPT { #if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32) SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target) { - if (wstr.size() > static_cast((std::numeric_limits::max)()) / 2 - 1) { + if (wstr.size() > static_cast((std::numeric_limits::max)()) / 4 - 1) { throw_spdlog_ex("UTF-16 string is too big to be converted to UTF-8"); } @@ -450,7 +451,7 @@ SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target) { } int result_size = static_cast(target.capacity()); - if ((wstr_size + 1) * 2 > result_size) { + if ((wstr_size + 1) * 4 > result_size) { result_size = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, NULL, 0, NULL, NULL); } @@ -482,13 +483,12 @@ SPDLOG_INLINE void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target) { } // find the size to allocate for the result buffer - int result_size = - ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, NULL, 0); + int result_size = ::MultiByteToWideChar(CP_UTF8, 0, str.data(), str_size, NULL, 0); if (result_size > 0) { target.resize(result_size); - result_size = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, - target.data(), result_size); + result_size = + ::MultiByteToWideChar(CP_UTF8, 0, str.data(), str_size, target.data(), result_size); if (result_size > 0) { assert(result_size == target.size()); return; @@ -534,6 +534,15 @@ SPDLOG_INLINE bool create_dir(const filename_t &path) { } auto subdir = path.substr(0, token_pos); +#ifdef _WIN32 + // if subdir is just a drive letter, add a slash e.g. "c:"=>"c:\", + // otherwise path_exists(subdir) returns false (issue #3079) + const bool is_drive = subdir.length() == 2 && subdir[1] == ':'; + if (is_drive) { + subdir += '\\'; + token_pos++; + } +#endif if (!subdir.empty() && !path_exists(subdir) && !mkdir_(subdir)) { return false; // return error if failed creating dir @@ -580,6 +589,18 @@ SPDLOG_INLINE bool fsync(FILE *fp) { #endif } +// Do non-locking fwrite if possible by the os or use the regular locking fwrite +// Return true on success. +SPDLOG_INLINE bool fwrite_bytes(const void *ptr, const size_t n_bytes, FILE *fp) { +#if defined(_WIN32) && defined(SPDLOG_FWRITE_UNLOCKED) + return _fwrite_nolock(ptr, 1, n_bytes, fp) == n_bytes; +#elif defined(SPDLOG_FWRITE_UNLOCKED) + return ::fwrite_unlocked(ptr, 1, n_bytes, fp) == n_bytes; +#else + return std::fwrite(ptr, 1, n_bytes, fp) == n_bytes; +#endif +} + } // namespace os } // namespace details } // namespace spdlog diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/os.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/os.h index dd8f0f47e..0e52bc31a 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/os.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/os.h @@ -114,6 +114,10 @@ SPDLOG_API std::string getenv(const char *field); // Return true on success. SPDLOG_API bool fsync(FILE *fp); +// Do non-locking fwrite if possible by the os or use the regular locking fwrite +// Return true on success. +SPDLOG_API bool fwrite_bytes(const void *ptr, const size_t n_bytes, FILE *fp); + } // namespace os } // namespace details } // namespace spdlog diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/registry-inl.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/registry-inl.h index 2b378e7d4..a2ba9c37a 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/registry-inl.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/registry-inl.h @@ -4,7 +4,7 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY - #include + #include "../details/registry.h" #endif #include "../common.h" @@ -54,6 +54,11 @@ SPDLOG_INLINE void registry::register_logger(std::shared_ptr new_logger) register_logger_(std::move(new_logger)); } +SPDLOG_INLINE void registry::register_or_replace(std::shared_ptr new_logger) { + std::lock_guard lock(logger_map_mutex_); + register_or_replace_(std::move(new_logger)); +} + SPDLOG_INLINE void registry::initialize_logger(std::shared_ptr new_logger) { std::lock_guard lock(logger_map_mutex_); new_logger->set_formatter(formatter_->clone()); @@ -99,10 +104,6 @@ SPDLOG_INLINE logger *registry::get_default_raw() { return default_logger_.get() // default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map. SPDLOG_INLINE void registry::set_default_logger(std::shared_ptr new_default_logger) { std::lock_guard lock(logger_map_mutex_); - // remove previous default logger from the map - if (default_logger_ != nullptr) { - loggers_.erase(default_logger_->name()); - } if (new_default_logger != nullptr) { loggers_[new_default_logger->name()] = new_default_logger; } @@ -256,10 +257,14 @@ SPDLOG_INLINE void registry::throw_if_exists_(const std::string &logger_name) { } SPDLOG_INLINE void registry::register_logger_(std::shared_ptr new_logger) { - auto logger_name = new_logger->name(); + auto &logger_name = new_logger->name(); throw_if_exists_(logger_name); loggers_[logger_name] = std::move(new_logger); } +SPDLOG_INLINE void registry::register_or_replace_(std::shared_ptr new_logger) { + loggers_[new_logger->name()] = std::move(new_logger); +} + } // namespace details } // namespace spdlog diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/registry.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/registry.h index 7df5d5533..1f49c0e6c 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/registry.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/registry.h @@ -31,6 +31,7 @@ class SPDLOG_API registry { registry &operator=(const registry &) = delete; void register_logger(std::shared_ptr new_logger); + void register_or_replace(std::shared_ptr new_logger); void initialize_logger(std::shared_ptr new_logger); std::shared_ptr get(const std::string &logger_name); std::shared_ptr default_logger(); @@ -42,8 +43,10 @@ class SPDLOG_API registry { // another. logger *get_default_raw(); - // set default logger. + // set default logger and add it to the registry if not registered already. // default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map. + // Note: Make sure to unregister it when no longer needed or before calling again with a new + // logger. void set_default_logger(std::shared_ptr new_default_logger); void set_tp(std::shared_ptr tp); @@ -103,6 +106,7 @@ class SPDLOG_API registry { void throw_if_exists_(const std::string &logger_name); void register_logger_(std::shared_ptr new_logger); + void register_or_replace_(std::shared_ptr new_logger); bool set_level_from_cfg_(logger *logger); std::mutex logger_map_mutex_, flusher_mutex_; std::recursive_mutex tp_mutex_; diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/thread_pool-inl.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/thread_pool-inl.h index 17e01c092..68b55369f 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/thread_pool-inl.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/details/thread_pool-inl.h @@ -38,8 +38,7 @@ SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, : thread_pool(q_max_items, threads_n, on_thread_start, [] {}) {} SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, size_t threads_n) - : thread_pool( - q_max_items, threads_n, [] {}, [] {}) {} + : thread_pool(q_max_items, threads_n, [] {}, [] {}) {} // message all threads to terminate gracefully join them SPDLOG_INLINE thread_pool::~thread_pool() { diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bin_to_hex.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bin_to_hex.h index c2998d57a..6ed68e427 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bin_to_hex.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bin_to_hex.h @@ -102,7 +102,7 @@ namespace template struct formatter, char> { - const char delimiter = ' '; + char delimiter = ' '; bool put_newlines = true; bool put_delimiters = true; bool use_uppercase = false; @@ -142,8 +142,8 @@ struct formatter, char> { // format the given bytes range as hex template - auto format(const spdlog::details::dump_info &the_range, FormatContext &ctx) const - -> decltype(ctx.out()) { + auto format(const spdlog::details::dump_info &the_range, + FormatContext &ctx) const -> decltype(ctx.out()) { SPDLOG_CONSTEXPR const char *hex_upper = "0123456789ABCDEF"; SPDLOG_CONSTEXPR const char *hex_lower = "0123456789abcdef"; const char *hex_chars = use_uppercase ? hex_upper : hex_lower; diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/args.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/args.h index c716e1aca..3ff478807 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/args.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/args.h @@ -1,4 +1,4 @@ -// Formatting library for C++ - dynamic format arguments +// Formatting library for C++ - dynamic argument lists // // Copyright (c) 2012 - present, Victor Zverovich // All rights reserved. @@ -8,231 +8,211 @@ #ifndef FMT_ARGS_H_ #define FMT_ARGS_H_ -#include // std::reference_wrapper -#include // std::unique_ptr -#include +#ifndef FMT_MODULE +# include // std::reference_wrapper +# include // std::unique_ptr +# include +#endif -#include "core.h" +#include "format.h" // std_string_view FMT_BEGIN_NAMESPACE - namespace detail { -template -struct is_reference_wrapper : std::false_type {}; +template struct is_reference_wrapper : std::false_type {}; template struct is_reference_wrapper> : std::true_type {}; +template auto unwrap(const T& v) -> const T& { return v; } template -const T& unwrap(const T& v) { - return v; -} -template -const T& unwrap(const std::reference_wrapper& v) { - return static_cast(v); +auto unwrap(const std::reference_wrapper& v) -> const T& { + return static_cast(v); } -class dynamic_arg_list { - // Workaround for clang's -Wweak-vtables. Unlike for regular classes, for - // templates it doesn't complain about inability to deduce single translation - // unit for placing vtable. So storage_node_base is made a fake template. - template - struct node { - virtual ~node() = default; - std::unique_ptr> next; - }; - - template - struct typed_node : node<> { - T value; - - template - FMT_CONSTEXPR typed_node(const Arg& arg) - : value(arg) {} - - template - FMT_CONSTEXPR typed_node(const basic_string_view& arg) - : value(arg.data(), arg.size()) {} - }; - - std::unique_ptr> head_; +// node is defined outside dynamic_arg_list to workaround a C2504 bug in MSVC +// 2022 (v17.10.0). +// +// Workaround for clang's -Wweak-vtables. Unlike for regular classes, for +// templates it doesn't complain about inability to deduce single translation +// unit for placing vtable. So node is made a fake template. +template struct node { + virtual ~node() = default; + std::unique_ptr> next; +}; -public: - template - const T& push(const Arg& arg) { - auto new_node = std::unique_ptr>(new typed_node(arg)); - auto& value = new_node->value; - new_node->next = std::move(head_); - head_ = std::move(new_node); - return value; - } +class dynamic_arg_list { + template struct typed_node : node<> { + T value; + + template + FMT_CONSTEXPR typed_node(const Arg& arg) : value(arg) {} + + template + FMT_CONSTEXPR typed_node(const basic_string_view& arg) + : value(arg.data(), arg.size()) {} + }; + + std::unique_ptr> head_; + + public: + template auto push(const Arg& arg) -> const T& { + auto new_node = std::unique_ptr>(new typed_node(arg)); + auto& value = new_node->value; + new_node->next = std::move(head_); + head_ = std::move(new_node); + return value; + } }; } // namespace detail /** - \rst - A dynamic version of `fmt::format_arg_store`. - It's equipped with a storage to potentially temporary objects which lifetimes - could be shorter than the format arguments object. - - It can be implicitly converted into `~fmt::basic_format_args` for passing - into type-erased formatting functions such as `~fmt::vformat`. - \endrst + * A dynamic list of formatting arguments with storage. + * + * It can be implicitly converted into `fmt::basic_format_args` for passing + * into type-erased formatting functions such as `fmt::vformat`. */ -template -class dynamic_format_arg_store -#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 - // Workaround a GCC template argument substitution bug. - : public basic_format_args -#endif -{ -private: - using char_type = typename Context::char_type; - - template - struct need_copy { - static constexpr detail::type mapped_type = detail::mapped_type_constant::value; - - enum { - value = !(detail::is_reference_wrapper::value || - std::is_same>::value || - std::is_same>::value || - (mapped_type != detail::type::cstring_type && - mapped_type != detail::type::string_type && - mapped_type != detail::type::custom_type)) - }; +template class dynamic_format_arg_store { + private: + using char_type = typename Context::char_type; + + template struct need_copy { + static constexpr detail::type mapped_type = + detail::mapped_type_constant::value; + + enum { + value = !(detail::is_reference_wrapper::value || + std::is_same>::value || + std::is_same>::value || + (mapped_type != detail::type::cstring_type && + mapped_type != detail::type::string_type && + mapped_type != detail::type::custom_type)) }; - - template - using stored_type = conditional_t>::value && - !detail::is_reference_wrapper::value, - std::basic_string, - T>; - - // Storage of basic_format_arg must be contiguous. - std::vector> data_; - std::vector> named_info_; - - // Storage of arguments not fitting into basic_format_arg must grow - // without relocation because items in data_ refer to it. - detail::dynamic_arg_list dynamic_args_; - - friend class basic_format_args; - - unsigned long long get_types() const { - return detail::is_unpacked_bit | data_.size() | - (named_info_.empty() ? 0ULL - : static_cast(detail::has_named_args_bit)); - } - - const basic_format_arg* data() const { - return named_info_.empty() ? data_.data() : data_.data() + 1; - } - - template - void emplace_arg(const T& arg) { - data_.emplace_back(detail::make_arg(arg)); - } - - template - void emplace_arg(const detail::named_arg& arg) { - if (named_info_.empty()) { - constexpr const detail::named_arg_info* zero_ptr{nullptr}; - data_.insert(data_.begin(), {zero_ptr, 0}); - } - data_.emplace_back(detail::make_arg(detail::unwrap(arg.value))); - auto pop_one = [](std::vector>* data) { data->pop_back(); }; - std::unique_ptr>, decltype(pop_one)> guard{&data_, - pop_one}; - named_info_.push_back({arg.name, static_cast(data_.size() - 2u)}); - data_[0].value_.named_args = {named_info_.data(), named_info_.size()}; - guard.release(); - } - -public: - constexpr dynamic_format_arg_store() = default; - - /** - \rst - Adds an argument into the dynamic store for later passing to a formatting - function. - - Note that custom types and string types (but not string views) are copied - into the store dynamically allocating memory if necessary. - - **Example**:: - - fmt::dynamic_format_arg_store store; - store.push_back(42); - store.push_back("abc"); - store.push_back(1.5f); - std::string result = fmt::vformat("{} and {} and {}", store); - \endrst - */ - template - void push_back(const T& arg) { - if (detail::const_check(need_copy::value)) - emplace_arg(dynamic_args_.push>(arg)); - else - emplace_arg(detail::unwrap(arg)); - } - - /** - \rst - Adds a reference to the argument into the dynamic store for later passing to - a formatting function. - - **Example**:: - - fmt::dynamic_format_arg_store store; - char band[] = "Rolling Stones"; - store.push_back(std::cref(band)); - band[9] = 'c'; // Changing str affects the output. - std::string result = fmt::vformat("{}", store); - // result == "Rolling Scones" - \endrst - */ - template - void push_back(std::reference_wrapper arg) { - static_assert(need_copy::value, - "objects of built-in types and string views are always copied"); - emplace_arg(arg.get()); - } - - /** - Adds named argument into the dynamic store for later passing to a formatting - function. ``std::reference_wrapper`` is supported to avoid copying of the - argument. The name is always copied into the store. - */ - template - void push_back(const detail::named_arg& arg) { - const char_type* arg_name = - dynamic_args_.push>(arg.name).c_str(); - if (detail::const_check(need_copy::value)) { - emplace_arg(fmt::arg(arg_name, dynamic_args_.push>(arg.value))); - } else { - emplace_arg(fmt::arg(arg_name, arg.value)); - } - } - - /** Erase all elements from the store */ - void clear() { - data_.clear(); - named_info_.clear(); - dynamic_args_ = detail::dynamic_arg_list(); - } - - /** - \rst - Reserves space to store at least *new_cap* arguments including - *new_cap_named* named arguments. - \endrst - */ - void reserve(size_t new_cap, size_t new_cap_named) { - FMT_ASSERT(new_cap >= new_cap_named, "Set of arguments includes set of named arguments"); - data_.reserve(new_cap); - named_info_.reserve(new_cap_named); + }; + + template + using stored_t = conditional_t< + std::is_convertible>::value && + !detail::is_reference_wrapper::value, + std::basic_string, T>; + + // Storage of basic_format_arg must be contiguous. + std::vector> data_; + std::vector> named_info_; + + // Storage of arguments not fitting into basic_format_arg must grow + // without relocation because items in data_ refer to it. + detail::dynamic_arg_list dynamic_args_; + + friend class basic_format_args; + + auto data() const -> const basic_format_arg* { + return named_info_.empty() ? data_.data() : data_.data() + 1; + } + + template void emplace_arg(const T& arg) { + data_.emplace_back(arg); + } + + template + void emplace_arg(const detail::named_arg& arg) { + if (named_info_.empty()) + data_.insert(data_.begin(), basic_format_arg(nullptr, 0)); + data_.emplace_back(detail::unwrap(arg.value)); + auto pop_one = [](std::vector>* data) { + data->pop_back(); + }; + std::unique_ptr>, decltype(pop_one)> + guard{&data_, pop_one}; + named_info_.push_back({arg.name, static_cast(data_.size() - 2u)}); + data_[0] = {named_info_.data(), named_info_.size()}; + guard.release(); + } + + public: + constexpr dynamic_format_arg_store() = default; + + operator basic_format_args() const { + return basic_format_args(data(), static_cast(data_.size()), + !named_info_.empty()); + } + + /** + * Adds an argument into the dynamic store for later passing to a formatting + * function. + * + * Note that custom types and string types (but not string views) are copied + * into the store dynamically allocating memory if necessary. + * + * **Example**: + * + * fmt::dynamic_format_arg_store store; + * store.push_back(42); + * store.push_back("abc"); + * store.push_back(1.5f); + * std::string result = fmt::vformat("{} and {} and {}", store); + */ + template void push_back(const T& arg) { + if (detail::const_check(need_copy::value)) + emplace_arg(dynamic_args_.push>(arg)); + else + emplace_arg(detail::unwrap(arg)); + } + + /** + * Adds a reference to the argument into the dynamic store for later passing + * to a formatting function. + * + * **Example**: + * + * fmt::dynamic_format_arg_store store; + * char band[] = "Rolling Stones"; + * store.push_back(std::cref(band)); + * band[9] = 'c'; // Changing str affects the output. + * std::string result = fmt::vformat("{}", store); + * // result == "Rolling Scones" + */ + template void push_back(std::reference_wrapper arg) { + static_assert( + need_copy::value, + "objects of built-in types and string views are always copied"); + emplace_arg(arg.get()); + } + + /** + * Adds named argument into the dynamic store for later passing to a + * formatting function. `std::reference_wrapper` is supported to avoid + * copying of the argument. The name is always copied into the store. + */ + template + void push_back(const detail::named_arg& arg) { + const char_type* arg_name = + dynamic_args_.push>(arg.name).c_str(); + if (detail::const_check(need_copy::value)) { + emplace_arg( + fmt::arg(arg_name, dynamic_args_.push>(arg.value))); + } else { + emplace_arg(fmt::arg(arg_name, arg.value)); } + } + + /// Erase all elements from the store. + void clear() { + data_.clear(); + named_info_.clear(); + dynamic_args_ = {}; + } + + /// Reserves space to store at least `new_cap` arguments including + /// `new_cap_named` named arguments. + void reserve(size_t new_cap, size_t new_cap_named) { + FMT_ASSERT(new_cap >= new_cap_named, + "set of arguments includes set of named arguments"); + data_.reserve(new_cap); + named_info_.reserve(new_cap_named); + } + + /// Returns the number of elements in the store. + size_t size() const noexcept { return data_.size(); } }; FMT_END_NAMESPACE diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/base.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/base.h new file mode 100644 index 000000000..87b3fd7cb --- /dev/null +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/base.h @@ -0,0 +1,2989 @@ +// Formatting library for C++ - the base API for char/UTF-8 +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_BASE_H_ +#define FMT_BASE_H_ + +#if defined(FMT_IMPORT_STD) && !defined(FMT_MODULE) +# define FMT_MODULE +#endif + +#ifndef FMT_MODULE +# include // CHAR_BIT +# include // FILE +# include // memcmp + +# include // std::enable_if +#endif + +// The fmt library version in the form major * 10000 + minor * 100 + patch. +#define FMT_VERSION 110200 + +// Detect compiler versions. +#if defined(__clang__) && !defined(__ibmxl__) +# define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__) +#else +# define FMT_CLANG_VERSION 0 +#endif +#if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER) +# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) +#else +# define FMT_GCC_VERSION 0 +#endif +#if defined(__ICL) +# define FMT_ICC_VERSION __ICL +#elif defined(__INTEL_COMPILER) +# define FMT_ICC_VERSION __INTEL_COMPILER +#else +# define FMT_ICC_VERSION 0 +#endif +#if defined(_MSC_VER) +# define FMT_MSC_VERSION _MSC_VER +#else +# define FMT_MSC_VERSION 0 +#endif + +// Detect standard library versions. +#ifdef _GLIBCXX_RELEASE +# define FMT_GLIBCXX_RELEASE _GLIBCXX_RELEASE +#else +# define FMT_GLIBCXX_RELEASE 0 +#endif +#ifdef _LIBCPP_VERSION +# define FMT_LIBCPP_VERSION _LIBCPP_VERSION +#else +# define FMT_LIBCPP_VERSION 0 +#endif + +#ifdef _MSVC_LANG +# define FMT_CPLUSPLUS _MSVC_LANG +#else +# define FMT_CPLUSPLUS __cplusplus +#endif + +// Detect __has_*. +#ifdef __has_feature +# define FMT_HAS_FEATURE(x) __has_feature(x) +#else +# define FMT_HAS_FEATURE(x) 0 +#endif +#ifdef __has_include +# define FMT_HAS_INCLUDE(x) __has_include(x) +#else +# define FMT_HAS_INCLUDE(x) 0 +#endif +#ifdef __has_builtin +# define FMT_HAS_BUILTIN(x) __has_builtin(x) +#else +# define FMT_HAS_BUILTIN(x) 0 +#endif +#ifdef __has_cpp_attribute +# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) +#else +# define FMT_HAS_CPP_ATTRIBUTE(x) 0 +#endif + +#define FMT_HAS_CPP14_ATTRIBUTE(attribute) \ + (FMT_CPLUSPLUS >= 201402L && FMT_HAS_CPP_ATTRIBUTE(attribute)) + +#define FMT_HAS_CPP17_ATTRIBUTE(attribute) \ + (FMT_CPLUSPLUS >= 201703L && FMT_HAS_CPP_ATTRIBUTE(attribute)) + +// Detect C++14 relaxed constexpr. +#ifdef FMT_USE_CONSTEXPR +// Use the provided definition. +#elif FMT_GCC_VERSION >= 702 && FMT_CPLUSPLUS >= 201402L +// GCC only allows constexpr member functions in non-literal types since 7.2: +// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66297. +# define FMT_USE_CONSTEXPR 1 +#elif FMT_ICC_VERSION +# define FMT_USE_CONSTEXPR 0 // https://github.com/fmtlib/fmt/issues/1628 +#elif FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VERSION >= 1912 +# define FMT_USE_CONSTEXPR 1 +#else +# define FMT_USE_CONSTEXPR 0 +#endif +#if FMT_USE_CONSTEXPR +# define FMT_CONSTEXPR constexpr +#else +# define FMT_CONSTEXPR +#endif + +// Detect consteval, C++20 constexpr extensions and std::is_constant_evaluated. +#if !defined(__cpp_lib_is_constant_evaluated) +# define FMT_USE_CONSTEVAL 0 +#elif FMT_CPLUSPLUS < 201709L +# define FMT_USE_CONSTEVAL 0 +#elif FMT_GLIBCXX_RELEASE && FMT_GLIBCXX_RELEASE < 10 +# define FMT_USE_CONSTEVAL 0 +#elif FMT_LIBCPP_VERSION && FMT_LIBCPP_VERSION < 10000 +# define FMT_USE_CONSTEVAL 0 +#elif defined(__apple_build_version__) && __apple_build_version__ < 14000029L +# define FMT_USE_CONSTEVAL 0 // consteval is broken in Apple clang < 14. +#elif FMT_MSC_VERSION && FMT_MSC_VERSION < 1929 +# define FMT_USE_CONSTEVAL 0 // consteval is broken in MSVC VS2019 < 16.10. +#elif defined(__cpp_consteval) +# define FMT_USE_CONSTEVAL 1 +#elif FMT_GCC_VERSION >= 1002 || FMT_CLANG_VERSION >= 1101 +# define FMT_USE_CONSTEVAL 1 +#else +# define FMT_USE_CONSTEVAL 0 +#endif +#if FMT_USE_CONSTEVAL +# define FMT_CONSTEVAL consteval +# define FMT_CONSTEXPR20 constexpr +#else +# define FMT_CONSTEVAL +# define FMT_CONSTEXPR20 +#endif + +// Check if exceptions are disabled. +#ifdef FMT_USE_EXCEPTIONS +// Use the provided definition. +#elif defined(__GNUC__) && !defined(__EXCEPTIONS) +# define FMT_USE_EXCEPTIONS 0 +#elif defined(__clang__) && !defined(__cpp_exceptions) +# define FMT_USE_EXCEPTIONS 0 +#elif FMT_MSC_VERSION && !_HAS_EXCEPTIONS +# define FMT_USE_EXCEPTIONS 0 +#else +# define FMT_USE_EXCEPTIONS 1 +#endif +#if FMT_USE_EXCEPTIONS +# define FMT_TRY try +# define FMT_CATCH(x) catch (x) +#else +# define FMT_TRY if (true) +# define FMT_CATCH(x) if (false) +#endif + +#ifdef FMT_NO_UNIQUE_ADDRESS +// Use the provided definition. +#elif FMT_CPLUSPLUS < 202002L +// Not supported. +#elif FMT_HAS_CPP_ATTRIBUTE(no_unique_address) +# define FMT_NO_UNIQUE_ADDRESS [[no_unique_address]] +// VS2019 v16.10 and later except clang-cl (https://reviews.llvm.org/D110485). +#elif FMT_MSC_VERSION >= 1929 && !FMT_CLANG_VERSION +# define FMT_NO_UNIQUE_ADDRESS [[msvc::no_unique_address]] +#endif +#ifndef FMT_NO_UNIQUE_ADDRESS +# define FMT_NO_UNIQUE_ADDRESS +#endif + +#if FMT_HAS_CPP17_ATTRIBUTE(fallthrough) +# define FMT_FALLTHROUGH [[fallthrough]] +#elif defined(__clang__) +# define FMT_FALLTHROUGH [[clang::fallthrough]] +#elif FMT_GCC_VERSION >= 700 && \ + (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= 520) +# define FMT_FALLTHROUGH [[gnu::fallthrough]] +#else +# define FMT_FALLTHROUGH +#endif + +// Disable [[noreturn]] on MSVC/NVCC because of bogus unreachable code warnings. +#if FMT_HAS_CPP_ATTRIBUTE(noreturn) && !FMT_MSC_VERSION && !defined(__NVCC__) +# define FMT_NORETURN [[noreturn]] +#else +# define FMT_NORETURN +#endif + +#ifdef FMT_NODISCARD +// Use the provided definition. +#elif FMT_HAS_CPP17_ATTRIBUTE(nodiscard) +# define FMT_NODISCARD [[nodiscard]] +#else +# define FMT_NODISCARD +#endif + +#ifdef FMT_DEPRECATED +// Use the provided definition. +#elif FMT_HAS_CPP14_ATTRIBUTE(deprecated) +# define FMT_DEPRECATED [[deprecated]] +#else +# define FMT_DEPRECATED /* deprecated */ +#endif + +#if FMT_GCC_VERSION || FMT_CLANG_VERSION +# define FMT_VISIBILITY(value) __attribute__((visibility(value))) +#else +# define FMT_VISIBILITY(value) +#endif + +// Detect pragmas. +#define FMT_PRAGMA_IMPL(x) _Pragma(#x) +#if FMT_GCC_VERSION >= 504 && !defined(__NVCOMPILER) +// Workaround a _Pragma bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59884 +// and an nvhpc warning: https://github.com/fmtlib/fmt/pull/2582. +# define FMT_PRAGMA_GCC(x) FMT_PRAGMA_IMPL(GCC x) +#else +# define FMT_PRAGMA_GCC(x) +#endif +#if FMT_CLANG_VERSION +# define FMT_PRAGMA_CLANG(x) FMT_PRAGMA_IMPL(clang x) +#else +# define FMT_PRAGMA_CLANG(x) +#endif +#if FMT_MSC_VERSION +# define FMT_MSC_WARNING(...) __pragma(warning(__VA_ARGS__)) +#else +# define FMT_MSC_WARNING(...) +#endif + +// Enable minimal optimizations for more compact code in debug mode. +FMT_PRAGMA_GCC(push_options) +#if !defined(__OPTIMIZE__) && !defined(__CUDACC__) && !defined(FMT_MODULE) +FMT_PRAGMA_GCC(optimize("Og")) +# define FMT_GCC_OPTIMIZED +#endif +FMT_PRAGMA_CLANG(diagnostic push) + +#ifdef FMT_ALWAYS_INLINE +// Use the provided definition. +#elif FMT_GCC_VERSION || FMT_CLANG_VERSION +# define FMT_ALWAYS_INLINE inline __attribute__((always_inline)) +#else +# define FMT_ALWAYS_INLINE inline +#endif +// A version of FMT_ALWAYS_INLINE to prevent code bloat in debug mode. +#if defined(NDEBUG) || defined(FMT_GCC_OPTIMIZED) +# define FMT_INLINE FMT_ALWAYS_INLINE +#else +# define FMT_INLINE inline +#endif + +#ifndef FMT_BEGIN_NAMESPACE +# define FMT_BEGIN_NAMESPACE \ + namespace fmt { \ + inline namespace v11 { +# define FMT_END_NAMESPACE \ + } \ + } +#endif + +#ifndef FMT_EXPORT +# define FMT_EXPORT +# define FMT_BEGIN_EXPORT +# define FMT_END_EXPORT +#endif + +#ifdef _WIN32 +# define FMT_WIN32 1 +#else +# define FMT_WIN32 0 +#endif + +#if !defined(FMT_HEADER_ONLY) && FMT_WIN32 +# if defined(FMT_LIB_EXPORT) +# define FMT_API __declspec(dllexport) +# elif defined(FMT_SHARED) +# define FMT_API __declspec(dllimport) +# endif +#elif defined(FMT_LIB_EXPORT) || defined(FMT_SHARED) +# define FMT_API FMT_VISIBILITY("default") +#endif +#ifndef FMT_API +# define FMT_API +#endif + +#ifndef FMT_OPTIMIZE_SIZE +# define FMT_OPTIMIZE_SIZE 0 +#endif + +// FMT_BUILTIN_TYPE=0 may result in smaller library size at the cost of higher +// per-call binary size by passing built-in types through the extension API. +#ifndef FMT_BUILTIN_TYPES +# define FMT_BUILTIN_TYPES 1 +#endif + +#define FMT_APPLY_VARIADIC(expr) \ + using unused = int[]; \ + (void)unused { 0, (expr, 0)... } + +FMT_BEGIN_NAMESPACE + +// Implementations of enable_if_t and other metafunctions for older systems. +template +using enable_if_t = typename std::enable_if::type; +template +using conditional_t = typename std::conditional::type; +template using bool_constant = std::integral_constant; +template +using remove_reference_t = typename std::remove_reference::type; +template +using remove_const_t = typename std::remove_const::type; +template +using remove_cvref_t = typename std::remove_cv>::type; +template +using make_unsigned_t = typename std::make_unsigned::type; +template +using underlying_t = typename std::underlying_type::type; +template using decay_t = typename std::decay::type; +using nullptr_t = decltype(nullptr); + +#if (FMT_GCC_VERSION && FMT_GCC_VERSION < 500) || FMT_MSC_VERSION +// A workaround for gcc 4.9 & MSVC v141 to make void_t work in a SFINAE context. +template struct void_t_impl { + using type = void; +}; +template using void_t = typename void_t_impl::type; +#else +template using void_t = void; +#endif + +struct monostate { + constexpr monostate() {} +}; + +// An enable_if helper to be used in template parameters which results in much +// shorter symbols: https://godbolt.org/z/sWw4vP. Extra parentheses are needed +// to workaround a bug in MSVC 2019 (see #1140 and #1186). +#ifdef FMT_DOC +# define FMT_ENABLE_IF(...) +#else +# define FMT_ENABLE_IF(...) fmt::enable_if_t<(__VA_ARGS__), int> = 0 +#endif + +template constexpr auto min_of(T a, T b) -> T { + return a < b ? a : b; +} +template constexpr auto max_of(T a, T b) -> T { + return a > b ? a : b; +} + +namespace detail { +// Suppresses "unused variable" warnings with the method described in +// https://herbsutter.com/2009/10/18/mailbag-shutting-up-compiler-warnings/. +// (void)var does not work on many Intel compilers. +template FMT_CONSTEXPR void ignore_unused(const T&...) {} + +constexpr auto is_constant_evaluated(bool default_value = false) noexcept + -> bool { +// Workaround for incompatibility between clang 14 and libstdc++ consteval-based +// std::is_constant_evaluated: https://github.com/fmtlib/fmt/issues/3247. +#if FMT_CPLUSPLUS >= 202002L && FMT_GLIBCXX_RELEASE >= 12 && \ + (FMT_CLANG_VERSION >= 1400 && FMT_CLANG_VERSION < 1500) + ignore_unused(default_value); + return __builtin_is_constant_evaluated(); +#elif defined(__cpp_lib_is_constant_evaluated) + ignore_unused(default_value); + return std::is_constant_evaluated(); +#else + return default_value; +#endif +} + +// Suppresses "conditional expression is constant" warnings. +template FMT_ALWAYS_INLINE constexpr auto const_check(T val) -> T { + return val; +} + +FMT_NORETURN FMT_API void assert_fail(const char* file, int line, + const char* message); + +#if defined(FMT_ASSERT) +// Use the provided definition. +#elif defined(NDEBUG) +// FMT_ASSERT is not empty to avoid -Wempty-body. +# define FMT_ASSERT(condition, message) \ + fmt::detail::ignore_unused((condition), (message)) +#else +# define FMT_ASSERT(condition, message) \ + ((condition) /* void() fails with -Winvalid-constexpr on clang 4.0.1 */ \ + ? (void)0 \ + : fmt::detail::assert_fail(__FILE__, __LINE__, (message))) +#endif + +#ifdef FMT_USE_INT128 +// Use the provided definition. +#elif defined(__SIZEOF_INT128__) && !defined(__NVCC__) && \ + !(FMT_CLANG_VERSION && FMT_MSC_VERSION) +# define FMT_USE_INT128 1 +using int128_opt = __int128_t; // An optional native 128-bit integer. +using uint128_opt = __uint128_t; +inline auto map(int128_opt x) -> int128_opt { return x; } +inline auto map(uint128_opt x) -> uint128_opt { return x; } +#else +# define FMT_USE_INT128 0 +#endif +#if !FMT_USE_INT128 +enum class int128_opt {}; +enum class uint128_opt {}; +// Reduce template instantiations. +inline auto map(int128_opt) -> monostate { return {}; } +inline auto map(uint128_opt) -> monostate { return {}; } +#endif + +#ifndef FMT_USE_BITINT +# define FMT_USE_BITINT (FMT_CLANG_VERSION >= 1500) +#endif + +#if FMT_USE_BITINT +FMT_PRAGMA_CLANG(diagnostic ignored "-Wbit-int-extension") +template using bitint = _BitInt(N); +template using ubitint = unsigned _BitInt(N); +#else +template struct bitint {}; +template struct ubitint {}; +#endif // FMT_USE_BITINT + +// Casts a nonnegative integer to unsigned. +template +FMT_CONSTEXPR auto to_unsigned(Int value) -> make_unsigned_t { + FMT_ASSERT(std::is_unsigned::value || value >= 0, "negative value"); + return static_cast>(value); +} + +template +using unsigned_char = conditional_t; + +// A heuristic to detect std::string and std::[experimental::]string_view. +// It is mainly used to avoid dependency on <[experimental/]string_view>. +template +struct is_std_string_like : std::false_type {}; +template +struct is_std_string_like().find_first_of( + typename T::value_type(), 0))>> + : std::is_convertible().data()), + const typename T::value_type*> {}; + +// Check if the literal encoding is UTF-8. +enum { is_utf8_enabled = "\u00A7"[1] == '\xA7' }; +enum { use_utf8 = !FMT_WIN32 || is_utf8_enabled }; + +#ifndef FMT_UNICODE +# define FMT_UNICODE 1 +#endif + +static_assert(!FMT_UNICODE || use_utf8, + "Unicode support requires compiling with /utf-8"); + +template constexpr const char* narrow(const T*) { return nullptr; } +constexpr FMT_ALWAYS_INLINE const char* narrow(const char* s) { return s; } + +template +FMT_CONSTEXPR auto compare(const Char* s1, const Char* s2, std::size_t n) + -> int { + if (!is_constant_evaluated() && sizeof(Char) == 1) return memcmp(s1, s2, n); + for (; n != 0; ++s1, ++s2, --n) { + if (*s1 < *s2) return -1; + if (*s1 > *s2) return 1; + } + return 0; +} + +namespace adl { +using namespace std; + +template +auto invoke_back_inserter() + -> decltype(back_inserter(std::declval())); +} // namespace adl + +template +struct is_back_insert_iterator : std::false_type {}; + +template +struct is_back_insert_iterator< + It, bool_constant()), + It>::value>> : std::true_type {}; + +// Extracts a reference to the container from *insert_iterator. +template +inline FMT_CONSTEXPR20 auto get_container(OutputIt it) -> + typename OutputIt::container_type& { + struct accessor : OutputIt { + FMT_CONSTEXPR20 accessor(OutputIt base) : OutputIt(base) {} + using OutputIt::container; + }; + return *accessor(it).container; +} +} // namespace detail + +// Parsing-related public API and forward declarations. +FMT_BEGIN_EXPORT + +/** + * An implementation of `std::basic_string_view` for pre-C++17. It provides a + * subset of the API. `fmt::basic_string_view` is used for format strings even + * if `std::basic_string_view` is available to prevent issues when a library is + * compiled with a different `-std` option than the client code (which is not + * recommended). + */ +template class basic_string_view { + private: + const Char* data_; + size_t size_; + + public: + using value_type = Char; + using iterator = const Char*; + + constexpr basic_string_view() noexcept : data_(nullptr), size_(0) {} + + /// Constructs a string view object from a C string and a size. + constexpr basic_string_view(const Char* s, size_t count) noexcept + : data_(s), size_(count) {} + + constexpr basic_string_view(nullptr_t) = delete; + + /// Constructs a string view object from a C string. +#if FMT_GCC_VERSION + FMT_ALWAYS_INLINE +#endif + FMT_CONSTEXPR20 basic_string_view(const Char* s) : data_(s) { +#if FMT_HAS_BUILTIN(__builtin_strlen) || FMT_GCC_VERSION || FMT_CLANG_VERSION + if (std::is_same::value && !detail::is_constant_evaluated()) { + size_ = __builtin_strlen(detail::narrow(s)); // strlen is not costexpr. + return; + } +#endif + size_t len = 0; + while (*s++) ++len; + size_ = len; + } + + /// Constructs a string view from a `std::basic_string` or a + /// `std::basic_string_view` object. + template ::value&& std::is_same< + typename S::value_type, Char>::value)> + FMT_CONSTEXPR basic_string_view(const S& s) noexcept + : data_(s.data()), size_(s.size()) {} + + /// Returns a pointer to the string data. + constexpr auto data() const noexcept -> const Char* { return data_; } + + /// Returns the string size. + constexpr auto size() const noexcept -> size_t { return size_; } + + constexpr auto begin() const noexcept -> iterator { return data_; } + constexpr auto end() const noexcept -> iterator { return data_ + size_; } + + constexpr auto operator[](size_t pos) const noexcept -> const Char& { + return data_[pos]; + } + + FMT_CONSTEXPR void remove_prefix(size_t n) noexcept { + data_ += n; + size_ -= n; + } + + FMT_CONSTEXPR auto starts_with(basic_string_view sv) const noexcept + -> bool { + return size_ >= sv.size_ && detail::compare(data_, sv.data_, sv.size_) == 0; + } + FMT_CONSTEXPR auto starts_with(Char c) const noexcept -> bool { + return size_ >= 1 && *data_ == c; + } + FMT_CONSTEXPR auto starts_with(const Char* s) const -> bool { + return starts_with(basic_string_view(s)); + } + + FMT_CONSTEXPR auto compare(basic_string_view other) const -> int { + int result = + detail::compare(data_, other.data_, min_of(size_, other.size_)); + if (result != 0) return result; + return size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); + } + + FMT_CONSTEXPR friend auto operator==(basic_string_view lhs, + basic_string_view rhs) -> bool { + return lhs.compare(rhs) == 0; + } + friend auto operator!=(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) != 0; + } + friend auto operator<(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) < 0; + } + friend auto operator<=(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) <= 0; + } + friend auto operator>(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) > 0; + } + friend auto operator>=(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) >= 0; + } +}; + +using string_view = basic_string_view; + +// DEPRECATED! Will be merged with is_char and moved to detail. +template struct is_xchar : std::false_type {}; +template <> struct is_xchar : std::true_type {}; +template <> struct is_xchar : std::true_type {}; +template <> struct is_xchar : std::true_type {}; +#ifdef __cpp_char8_t +template <> struct is_xchar : std::true_type {}; +#endif + +// Specifies if `T` is a character (code unit) type. +template struct is_char : is_xchar {}; +template <> struct is_char : std::true_type {}; + +template class basic_appender; +using appender = basic_appender; + +// Checks whether T is a container with contiguous storage. +template struct is_contiguous : std::false_type {}; + +class context; +template class generic_context; +template class parse_context; + +// Longer aliases for C++20 compatibility. +template using basic_format_parse_context = parse_context; +using format_parse_context = parse_context; +template +using basic_format_context = + conditional_t::value, context, + generic_context>; +using format_context = context; + +template +using buffered_context = + conditional_t::value, context, + generic_context, Char>>; + +template class basic_format_arg; +template class basic_format_args; + +// A separate type would result in shorter symbols but break ABI compatibility +// between clang and gcc on ARM (#1919). +using format_args = basic_format_args; + +// A formatter for objects of type T. +template +struct formatter { + // A deleted default constructor indicates a disabled formatter. + formatter() = delete; +}; + +/// Reports a format error at compile time or, via a `format_error` exception, +/// at runtime. +// This function is intentionally not constexpr to give a compile-time error. +FMT_NORETURN FMT_API void report_error(const char* message); + +enum class presentation_type : unsigned char { + // Common specifiers: + none = 0, + debug = 1, // '?' + string = 2, // 's' (string, bool) + + // Integral, bool and character specifiers: + dec = 3, // 'd' + hex, // 'x' or 'X' + oct, // 'o' + bin, // 'b' or 'B' + chr, // 'c' + + // String and pointer specifiers: + pointer = 3, // 'p' + + // Floating-point specifiers: + exp = 1, // 'e' or 'E' (1 since there is no FP debug presentation) + fixed, // 'f' or 'F' + general, // 'g' or 'G' + hexfloat // 'a' or 'A' +}; + +enum class align { none, left, right, center, numeric }; +enum class sign { none, minus, plus, space }; +enum class arg_id_kind { none, index, name }; + +// Basic format specifiers for built-in and string types. +class basic_specs { + private: + // Data is arranged as follows: + // + // 0 1 2 3 + // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + // |type |align| w | p | s |u|#|L| f | unused | + // +-----+-----+---+---+---+-+-+-+-----+---------------------------+ + // + // w - dynamic width info + // p - dynamic precision info + // s - sign + // u - uppercase (e.g. 'X' for 'x') + // # - alternate form ('#') + // L - localized + // f - fill size + // + // Bitfields are not used because of compiler bugs such as gcc bug 61414. + enum : unsigned { + type_mask = 0x00007, + align_mask = 0x00038, + width_mask = 0x000C0, + precision_mask = 0x00300, + sign_mask = 0x00C00, + uppercase_mask = 0x01000, + alternate_mask = 0x02000, + localized_mask = 0x04000, + fill_size_mask = 0x38000, + + align_shift = 3, + width_shift = 6, + precision_shift = 8, + sign_shift = 10, + fill_size_shift = 15, + + max_fill_size = 4 + }; + + unsigned data_ = 1 << fill_size_shift; + static_assert(sizeof(basic_specs::data_) * CHAR_BIT >= 18, ""); + + // Character (code unit) type is erased to prevent template bloat. + char fill_data_[max_fill_size] = {' '}; + + FMT_CONSTEXPR void set_fill_size(size_t size) { + data_ = (data_ & ~fill_size_mask) | + (static_cast(size) << fill_size_shift); + } + + public: + constexpr auto type() const -> presentation_type { + return static_cast(data_ & type_mask); + } + FMT_CONSTEXPR void set_type(presentation_type t) { + data_ = (data_ & ~type_mask) | static_cast(t); + } + + constexpr auto align() const -> align { + return static_cast((data_ & align_mask) >> align_shift); + } + FMT_CONSTEXPR void set_align(fmt::align a) { + data_ = (data_ & ~align_mask) | (static_cast(a) << align_shift); + } + + constexpr auto dynamic_width() const -> arg_id_kind { + return static_cast((data_ & width_mask) >> width_shift); + } + FMT_CONSTEXPR void set_dynamic_width(arg_id_kind w) { + data_ = (data_ & ~width_mask) | (static_cast(w) << width_shift); + } + + FMT_CONSTEXPR auto dynamic_precision() const -> arg_id_kind { + return static_cast((data_ & precision_mask) >> + precision_shift); + } + FMT_CONSTEXPR void set_dynamic_precision(arg_id_kind p) { + data_ = (data_ & ~precision_mask) | + (static_cast(p) << precision_shift); + } + + constexpr bool dynamic() const { + return (data_ & (width_mask | precision_mask)) != 0; + } + + constexpr auto sign() const -> sign { + return static_cast((data_ & sign_mask) >> sign_shift); + } + FMT_CONSTEXPR void set_sign(fmt::sign s) { + data_ = (data_ & ~sign_mask) | (static_cast(s) << sign_shift); + } + + constexpr auto upper() const -> bool { return (data_ & uppercase_mask) != 0; } + FMT_CONSTEXPR void set_upper() { data_ |= uppercase_mask; } + + constexpr auto alt() const -> bool { return (data_ & alternate_mask) != 0; } + FMT_CONSTEXPR void set_alt() { data_ |= alternate_mask; } + FMT_CONSTEXPR void clear_alt() { data_ &= ~alternate_mask; } + + constexpr auto localized() const -> bool { + return (data_ & localized_mask) != 0; + } + FMT_CONSTEXPR void set_localized() { data_ |= localized_mask; } + + constexpr auto fill_size() const -> size_t { + return (data_ & fill_size_mask) >> fill_size_shift; + } + + template ::value)> + constexpr auto fill() const -> const Char* { + return fill_data_; + } + template ::value)> + constexpr auto fill() const -> const Char* { + return nullptr; + } + + template constexpr auto fill_unit() const -> Char { + using uchar = unsigned char; + return static_cast(static_cast(fill_data_[0]) | + (static_cast(fill_data_[1]) << 8) | + (static_cast(fill_data_[2]) << 16)); + } + + FMT_CONSTEXPR void set_fill(char c) { + fill_data_[0] = c; + set_fill_size(1); + } + + template + FMT_CONSTEXPR void set_fill(basic_string_view s) { + auto size = s.size(); + set_fill_size(size); + if (size == 1) { + unsigned uchar = static_cast>(s[0]); + fill_data_[0] = static_cast(uchar); + fill_data_[1] = static_cast(uchar >> 8); + fill_data_[2] = static_cast(uchar >> 16); + return; + } + FMT_ASSERT(size <= max_fill_size, "invalid fill"); + for (size_t i = 0; i < size; ++i) + fill_data_[i & 3] = static_cast(s[i]); + } + + FMT_CONSTEXPR void copy_fill_from(const basic_specs& specs) { + set_fill_size(specs.fill_size()); + for (size_t i = 0; i < max_fill_size; ++i) + fill_data_[i] = specs.fill_data_[i]; + } +}; + +// Format specifiers for built-in and string types. +struct format_specs : basic_specs { + int width; + int precision; + + constexpr format_specs() : width(0), precision(-1) {} +}; + +/** + * Parsing context consisting of a format string range being parsed and an + * argument counter for automatic indexing. + */ +template class parse_context { + private: + basic_string_view fmt_; + int next_arg_id_; + + enum { use_constexpr_cast = !FMT_GCC_VERSION || FMT_GCC_VERSION >= 1200 }; + + FMT_CONSTEXPR void do_check_arg_id(int arg_id); + + public: + using char_type = Char; + using iterator = const Char*; + + constexpr explicit parse_context(basic_string_view fmt, + int next_arg_id = 0) + : fmt_(fmt), next_arg_id_(next_arg_id) {} + + /// Returns an iterator to the beginning of the format string range being + /// parsed. + constexpr auto begin() const noexcept -> iterator { return fmt_.begin(); } + + /// Returns an iterator past the end of the format string range being parsed. + constexpr auto end() const noexcept -> iterator { return fmt_.end(); } + + /// Advances the begin iterator to `it`. + FMT_CONSTEXPR void advance_to(iterator it) { + fmt_.remove_prefix(detail::to_unsigned(it - begin())); + } + + /// Reports an error if using the manual argument indexing; otherwise returns + /// the next argument index and switches to the automatic indexing. + FMT_CONSTEXPR auto next_arg_id() -> int { + if (next_arg_id_ < 0) { + report_error("cannot switch from manual to automatic argument indexing"); + return 0; + } + int id = next_arg_id_++; + do_check_arg_id(id); + return id; + } + + /// Reports an error if using the automatic argument indexing; otherwise + /// switches to the manual indexing. + FMT_CONSTEXPR void check_arg_id(int id) { + if (next_arg_id_ > 0) { + report_error("cannot switch from automatic to manual argument indexing"); + return; + } + next_arg_id_ = -1; + do_check_arg_id(id); + } + FMT_CONSTEXPR void check_arg_id(basic_string_view) { + next_arg_id_ = -1; + } + FMT_CONSTEXPR void check_dynamic_spec(int arg_id); +}; + +FMT_END_EXPORT + +namespace detail { + +// Constructs fmt::basic_string_view from types implicitly convertible +// to it, deducing Char. Explicitly convertible types such as the ones returned +// from FMT_STRING are intentionally excluded. +template ::value)> +constexpr auto to_string_view(const Char* s) -> basic_string_view { + return s; +} +template ::value)> +constexpr auto to_string_view(const T& s) + -> basic_string_view { + return s; +} +template +constexpr auto to_string_view(basic_string_view s) + -> basic_string_view { + return s; +} + +template +struct has_to_string_view : std::false_type {}; +// detail:: is intentional since to_string_view is not an extension point. +template +struct has_to_string_view< + T, void_t()))>> + : std::true_type {}; + +/// String's character (code unit) type. detail:: is intentional to prevent ADL. +template ()))> +using char_t = typename V::value_type; + +enum class type { + none_type, + // Integer types should go first, + int_type, + uint_type, + long_long_type, + ulong_long_type, + int128_type, + uint128_type, + bool_type, + char_type, + last_integer_type = char_type, + // followed by floating-point types. + float_type, + double_type, + long_double_type, + last_numeric_type = long_double_type, + cstring_type, + string_type, + pointer_type, + custom_type +}; + +// Maps core type T to the corresponding type enum constant. +template +struct type_constant : std::integral_constant {}; + +#define FMT_TYPE_CONSTANT(Type, constant) \ + template \ + struct type_constant \ + : std::integral_constant {} + +FMT_TYPE_CONSTANT(int, int_type); +FMT_TYPE_CONSTANT(unsigned, uint_type); +FMT_TYPE_CONSTANT(long long, long_long_type); +FMT_TYPE_CONSTANT(unsigned long long, ulong_long_type); +FMT_TYPE_CONSTANT(int128_opt, int128_type); +FMT_TYPE_CONSTANT(uint128_opt, uint128_type); +FMT_TYPE_CONSTANT(bool, bool_type); +FMT_TYPE_CONSTANT(Char, char_type); +FMT_TYPE_CONSTANT(float, float_type); +FMT_TYPE_CONSTANT(double, double_type); +FMT_TYPE_CONSTANT(long double, long_double_type); +FMT_TYPE_CONSTANT(const Char*, cstring_type); +FMT_TYPE_CONSTANT(basic_string_view, string_type); +FMT_TYPE_CONSTANT(const void*, pointer_type); + +constexpr auto is_integral_type(type t) -> bool { + return t > type::none_type && t <= type::last_integer_type; +} +constexpr auto is_arithmetic_type(type t) -> bool { + return t > type::none_type && t <= type::last_numeric_type; +} + +constexpr auto set(type rhs) -> int { return 1 << static_cast(rhs); } +constexpr auto in(type t, int set) -> bool { + return ((set >> static_cast(t)) & 1) != 0; +} + +// Bitsets of types. +enum { + sint_set = + set(type::int_type) | set(type::long_long_type) | set(type::int128_type), + uint_set = set(type::uint_type) | set(type::ulong_long_type) | + set(type::uint128_type), + bool_set = set(type::bool_type), + char_set = set(type::char_type), + float_set = set(type::float_type) | set(type::double_type) | + set(type::long_double_type), + string_set = set(type::string_type), + cstring_set = set(type::cstring_type), + pointer_set = set(type::pointer_type) +}; + +struct view {}; + +template +struct is_view : std::false_type {}; +template +struct is_view> : std::is_base_of {}; + +template struct named_arg; +template struct is_named_arg : std::false_type {}; +template struct is_static_named_arg : std::false_type {}; + +template +struct is_named_arg> : std::true_type {}; + +template struct named_arg : view { + const Char* name; + const T& value; + + named_arg(const Char* n, const T& v) : name(n), value(v) {} + static_assert(!is_named_arg::value, "nested named arguments"); +}; + +template constexpr auto count() -> int { return B ? 1 : 0; } +template constexpr auto count() -> int { + return (B1 ? 1 : 0) + count(); +} + +template constexpr auto count_named_args() -> int { + return count::value...>(); +} +template constexpr auto count_static_named_args() -> int { + return count::value...>(); +} + +template struct named_arg_info { + const Char* name; + int id; +}; + +// named_args is non-const to suppress a bogus -Wmaybe-uninitalized in gcc 13. +template +FMT_CONSTEXPR void check_for_duplicate(named_arg_info* named_args, + int named_arg_index, + basic_string_view arg_name) { + for (int i = 0; i < named_arg_index; ++i) { + if (named_args[i].name == arg_name) report_error("duplicate named arg"); + } +} + +template ::value)> +void init_named_arg(named_arg_info*, int& arg_index, int&, const T&) { + ++arg_index; +} +template ::value)> +void init_named_arg(named_arg_info* named_args, int& arg_index, + int& named_arg_index, const T& arg) { + check_for_duplicate(named_args, named_arg_index, arg.name); + named_args[named_arg_index++] = {arg.name, arg_index++}; +} + +template ::value)> +FMT_CONSTEXPR void init_static_named_arg(named_arg_info*, int& arg_index, + int&) { + ++arg_index; +} +template ::value)> +FMT_CONSTEXPR void init_static_named_arg(named_arg_info* named_args, + int& arg_index, int& named_arg_index) { + check_for_duplicate(named_args, named_arg_index, T::name); + named_args[named_arg_index++] = {T::name, arg_index++}; +} + +// To minimize the number of types we need to deal with, long is translated +// either to int or to long long depending on its size. +enum { long_short = sizeof(long) == sizeof(int) && FMT_BUILTIN_TYPES }; +using long_type = conditional_t; +using ulong_type = conditional_t; + +template +using format_as_result = + remove_cvref_t()))>; +template +using format_as_member_result = + remove_cvref_t::format_as(std::declval()))>; + +template +struct use_format_as : std::false_type {}; +// format_as member is only used to avoid injection into the std namespace. +template +struct use_format_as_member : std::false_type {}; + +// Only map owning types because mapping views can be unsafe. +template +struct use_format_as< + T, bool_constant>::value>> + : std::true_type {}; +template +struct use_format_as_member< + T, bool_constant>::value>> + : std::true_type {}; + +template > +using use_formatter = + bool_constant<(std::is_class::value || std::is_enum::value || + std::is_union::value || std::is_array::value) && + !has_to_string_view::value && !is_named_arg::value && + !use_format_as::value && !use_format_as_member::value>; + +template > +auto has_formatter_impl(T* p, buffered_context* ctx = nullptr) + -> decltype(formatter().format(*p, *ctx), std::true_type()); +template auto has_formatter_impl(...) -> std::false_type; + +// T can be const-qualified to check if it is const-formattable. +template constexpr auto has_formatter() -> bool { + return decltype(has_formatter_impl(static_cast(nullptr)))::value; +} + +// Maps formatting argument types to natively supported types or user-defined +// types with formatters. Returns void on errors to be SFINAE-friendly. +template struct type_mapper { + static auto map(signed char) -> int; + static auto map(unsigned char) -> unsigned; + static auto map(short) -> int; + static auto map(unsigned short) -> unsigned; + static auto map(int) -> int; + static auto map(unsigned) -> unsigned; + static auto map(long) -> long_type; + static auto map(unsigned long) -> ulong_type; + static auto map(long long) -> long long; + static auto map(unsigned long long) -> unsigned long long; + static auto map(int128_opt) -> int128_opt; + static auto map(uint128_opt) -> uint128_opt; + static auto map(bool) -> bool; + + template + static auto map(bitint) -> conditional_t; + template + static auto map(ubitint) + -> conditional_t; + + template ::value)> + static auto map(T) -> conditional_t< + std::is_same::value || std::is_same::value, Char, void>; + + static auto map(float) -> float; + static auto map(double) -> double; + static auto map(long double) -> long double; + + static auto map(Char*) -> const Char*; + static auto map(const Char*) -> const Char*; + template , + FMT_ENABLE_IF(!std::is_pointer::value)> + static auto map(const T&) -> conditional_t::value, + basic_string_view, void>; + + static auto map(void*) -> const void*; + static auto map(const void*) -> const void*; + static auto map(volatile void*) -> const void*; + static auto map(const volatile void*) -> const void*; + static auto map(nullptr_t) -> const void*; + template ::value || + std::is_member_pointer::value)> + static auto map(const T&) -> void; + + template ::value)> + static auto map(const T& x) -> decltype(map(format_as(x))); + template ::value)> + static auto map(const T& x) -> decltype(map(formatter::format_as(x))); + + template ::value)> + static auto map(T&) -> conditional_t(), T&, void>; + + template ::value)> + static auto map(const T& named_arg) -> decltype(map(named_arg.value)); +}; + +// detail:: is used to workaround a bug in MSVC 2017. +template +using mapped_t = decltype(detail::type_mapper::map(std::declval())); + +// A type constant after applying type_mapper. +template +using mapped_type_constant = type_constant, Char>; + +template ::value> +using stored_type_constant = std::integral_constant< + type, Context::builtin_types || TYPE == type::int_type ? TYPE + : type::custom_type>; +// A parse context with extra data used only in compile-time checks. +template +class compile_parse_context : public parse_context { + private: + int num_args_; + const type* types_; + using base = parse_context; + + public: + FMT_CONSTEXPR explicit compile_parse_context(basic_string_view fmt, + int num_args, const type* types, + int next_arg_id = 0) + : base(fmt, next_arg_id), num_args_(num_args), types_(types) {} + + constexpr auto num_args() const -> int { return num_args_; } + constexpr auto arg_type(int id) const -> type { return types_[id]; } + + FMT_CONSTEXPR auto next_arg_id() -> int { + int id = base::next_arg_id(); + if (id >= num_args_) report_error("argument not found"); + return id; + } + + FMT_CONSTEXPR void check_arg_id(int id) { + base::check_arg_id(id); + if (id >= num_args_) report_error("argument not found"); + } + using base::check_arg_id; + + FMT_CONSTEXPR void check_dynamic_spec(int arg_id) { + ignore_unused(arg_id); + if (arg_id < num_args_ && types_ && !is_integral_type(types_[arg_id])) + report_error("width/precision is not integer"); + } +}; + +// An argument reference. +template union arg_ref { + FMT_CONSTEXPR arg_ref(int idx = 0) : index(idx) {} + FMT_CONSTEXPR arg_ref(basic_string_view n) : name(n) {} + + int index; + basic_string_view name; +}; + +// Format specifiers with width and precision resolved at formatting rather +// than parsing time to allow reusing the same parsed specifiers with +// different sets of arguments (precompilation of format strings). +template struct dynamic_format_specs : format_specs { + arg_ref width_ref; + arg_ref precision_ref; +}; + +// Converts a character to ASCII. Returns '\0' on conversion failure. +template ::value)> +constexpr auto to_ascii(Char c) -> char { + return c <= 0xff ? static_cast(c) : '\0'; +} + +// Returns the number of code units in a code point or 1 on error. +template +FMT_CONSTEXPR auto code_point_length(const Char* begin) -> int { + if (const_check(sizeof(Char) != 1)) return 1; + auto c = static_cast(*begin); + return static_cast((0x3a55000000000000ull >> (2 * (c >> 3))) & 3) + 1; +} + +// Parses the range [begin, end) as an unsigned integer. This function assumes +// that the range is non-empty and the first character is a digit. +template +FMT_CONSTEXPR auto parse_nonnegative_int(const Char*& begin, const Char* end, + int error_value) noexcept -> int { + FMT_ASSERT(begin != end && '0' <= *begin && *begin <= '9', ""); + unsigned value = 0, prev = 0; + auto p = begin; + do { + prev = value; + value = value * 10 + unsigned(*p - '0'); + ++p; + } while (p != end && '0' <= *p && *p <= '9'); + auto num_digits = p - begin; + begin = p; + int digits10 = static_cast(sizeof(int) * CHAR_BIT * 3 / 10); + if (num_digits <= digits10) return static_cast(value); + // Check for overflow. + unsigned max = INT_MAX; + return num_digits == digits10 + 1 && + prev * 10ull + unsigned(p[-1] - '0') <= max + ? static_cast(value) + : error_value; +} + +FMT_CONSTEXPR inline auto parse_align(char c) -> align { + switch (c) { + case '<': return align::left; + case '>': return align::right; + case '^': return align::center; + } + return align::none; +} + +template constexpr auto is_name_start(Char c) -> bool { + return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '_'; +} + +template +FMT_CONSTEXPR auto parse_arg_id(const Char* begin, const Char* end, + Handler&& handler) -> const Char* { + Char c = *begin; + if (c >= '0' && c <= '9') { + int index = 0; + if (c != '0') + index = parse_nonnegative_int(begin, end, INT_MAX); + else + ++begin; + if (begin == end || (*begin != '}' && *begin != ':')) + report_error("invalid format string"); + else + handler.on_index(index); + return begin; + } + if (FMT_OPTIMIZE_SIZE > 1 || !is_name_start(c)) { + report_error("invalid format string"); + return begin; + } + auto it = begin; + do { + ++it; + } while (it != end && (is_name_start(*it) || ('0' <= *it && *it <= '9'))); + handler.on_name({begin, to_unsigned(it - begin)}); + return it; +} + +template struct dynamic_spec_handler { + parse_context& ctx; + arg_ref& ref; + arg_id_kind& kind; + + FMT_CONSTEXPR void on_index(int id) { + ref = id; + kind = arg_id_kind::index; + ctx.check_arg_id(id); + ctx.check_dynamic_spec(id); + } + FMT_CONSTEXPR void on_name(basic_string_view id) { + ref = id; + kind = arg_id_kind::name; + ctx.check_arg_id(id); + } +}; + +template struct parse_dynamic_spec_result { + const Char* end; + arg_id_kind kind; +}; + +// Parses integer | "{" [arg_id] "}". +template +FMT_CONSTEXPR auto parse_dynamic_spec(const Char* begin, const Char* end, + int& value, arg_ref& ref, + parse_context& ctx) + -> parse_dynamic_spec_result { + FMT_ASSERT(begin != end, ""); + auto kind = arg_id_kind::none; + if ('0' <= *begin && *begin <= '9') { + int val = parse_nonnegative_int(begin, end, -1); + if (val == -1) report_error("number is too big"); + value = val; + } else { + if (*begin == '{') { + ++begin; + if (begin != end) { + Char c = *begin; + if (c == '}' || c == ':') { + int id = ctx.next_arg_id(); + ref = id; + kind = arg_id_kind::index; + ctx.check_dynamic_spec(id); + } else { + begin = parse_arg_id(begin, end, + dynamic_spec_handler{ctx, ref, kind}); + } + } + if (begin != end && *begin == '}') return {++begin, kind}; + } + report_error("invalid format string"); + } + return {begin, kind}; +} + +template +FMT_CONSTEXPR auto parse_width(const Char* begin, const Char* end, + format_specs& specs, arg_ref& width_ref, + parse_context& ctx) -> const Char* { + auto result = parse_dynamic_spec(begin, end, specs.width, width_ref, ctx); + specs.set_dynamic_width(result.kind); + return result.end; +} + +template +FMT_CONSTEXPR auto parse_precision(const Char* begin, const Char* end, + format_specs& specs, + arg_ref& precision_ref, + parse_context& ctx) -> const Char* { + ++begin; + if (begin == end) { + report_error("invalid precision"); + return begin; + } + auto result = + parse_dynamic_spec(begin, end, specs.precision, precision_ref, ctx); + specs.set_dynamic_precision(result.kind); + return result.end; +} + +enum class state { start, align, sign, hash, zero, width, precision, locale }; + +// Parses standard format specifiers. +template +FMT_CONSTEXPR auto parse_format_specs(const Char* begin, const Char* end, + dynamic_format_specs& specs, + parse_context& ctx, type arg_type) + -> const Char* { + auto c = '\0'; + if (end - begin > 1) { + auto next = to_ascii(begin[1]); + c = parse_align(next) == align::none ? to_ascii(*begin) : '\0'; + } else { + if (begin == end) return begin; + c = to_ascii(*begin); + } + + struct { + state current_state = state::start; + FMT_CONSTEXPR void operator()(state s, bool valid = true) { + if (current_state >= s || !valid) + report_error("invalid format specifier"); + current_state = s; + } + } enter_state; + + using pres = presentation_type; + constexpr auto integral_set = sint_set | uint_set | bool_set | char_set; + struct { + const Char*& begin; + format_specs& specs; + type arg_type; + + FMT_CONSTEXPR auto operator()(pres pres_type, int set) -> const Char* { + if (!in(arg_type, set)) report_error("invalid format specifier"); + specs.set_type(pres_type); + return begin + 1; + } + } parse_presentation_type{begin, specs, arg_type}; + + for (;;) { + switch (c) { + case '<': + case '>': + case '^': + enter_state(state::align); + specs.set_align(parse_align(c)); + ++begin; + break; + case '+': + case ' ': + specs.set_sign(c == ' ' ? sign::space : sign::plus); + FMT_FALLTHROUGH; + case '-': + enter_state(state::sign, in(arg_type, sint_set | float_set)); + ++begin; + break; + case '#': + enter_state(state::hash, is_arithmetic_type(arg_type)); + specs.set_alt(); + ++begin; + break; + case '0': + enter_state(state::zero); + if (!is_arithmetic_type(arg_type)) + report_error("format specifier requires numeric argument"); + if (specs.align() == align::none) { + // Ignore 0 if align is specified for compatibility with std::format. + specs.set_align(align::numeric); + specs.set_fill('0'); + } + ++begin; + break; + // clang-format off + case '1': case '2': case '3': case '4': case '5': + case '6': case '7': case '8': case '9': case '{': + // clang-format on + enter_state(state::width); + begin = parse_width(begin, end, specs, specs.width_ref, ctx); + break; + case '.': + enter_state(state::precision, + in(arg_type, float_set | string_set | cstring_set)); + begin = parse_precision(begin, end, specs, specs.precision_ref, ctx); + break; + case 'L': + enter_state(state::locale, is_arithmetic_type(arg_type)); + specs.set_localized(); + ++begin; + break; + case 'd': return parse_presentation_type(pres::dec, integral_set); + case 'X': specs.set_upper(); FMT_FALLTHROUGH; + case 'x': return parse_presentation_type(pres::hex, integral_set); + case 'o': return parse_presentation_type(pres::oct, integral_set); + case 'B': specs.set_upper(); FMT_FALLTHROUGH; + case 'b': return parse_presentation_type(pres::bin, integral_set); + case 'E': specs.set_upper(); FMT_FALLTHROUGH; + case 'e': return parse_presentation_type(pres::exp, float_set); + case 'F': specs.set_upper(); FMT_FALLTHROUGH; + case 'f': return parse_presentation_type(pres::fixed, float_set); + case 'G': specs.set_upper(); FMT_FALLTHROUGH; + case 'g': return parse_presentation_type(pres::general, float_set); + case 'A': specs.set_upper(); FMT_FALLTHROUGH; + case 'a': return parse_presentation_type(pres::hexfloat, float_set); + case 'c': + if (arg_type == type::bool_type) report_error("invalid format specifier"); + return parse_presentation_type(pres::chr, integral_set); + case 's': + return parse_presentation_type(pres::string, + bool_set | string_set | cstring_set); + case 'p': + return parse_presentation_type(pres::pointer, pointer_set | cstring_set); + case '?': + return parse_presentation_type(pres::debug, + char_set | string_set | cstring_set); + case '}': return begin; + default: { + if (*begin == '}') return begin; + // Parse fill and alignment. + auto fill_end = begin + code_point_length(begin); + if (end - fill_end <= 0) { + report_error("invalid format specifier"); + return begin; + } + if (*begin == '{') { + report_error("invalid fill character '{'"); + return begin; + } + auto alignment = parse_align(to_ascii(*fill_end)); + enter_state(state::align, alignment != align::none); + specs.set_fill( + basic_string_view(begin, to_unsigned(fill_end - begin))); + specs.set_align(alignment); + begin = fill_end + 1; + } + } + if (begin == end) return begin; + c = to_ascii(*begin); + } +} + +template +FMT_CONSTEXPR FMT_INLINE auto parse_replacement_field(const Char* begin, + const Char* end, + Handler&& handler) + -> const Char* { + ++begin; + if (begin == end) { + handler.on_error("invalid format string"); + return end; + } + int arg_id = 0; + switch (*begin) { + case '}': + handler.on_replacement_field(handler.on_arg_id(), begin); + return begin + 1; + case '{': handler.on_text(begin, begin + 1); return begin + 1; + case ':': arg_id = handler.on_arg_id(); break; + default: { + struct id_adapter { + Handler& handler; + int arg_id; + + FMT_CONSTEXPR void on_index(int id) { arg_id = handler.on_arg_id(id); } + FMT_CONSTEXPR void on_name(basic_string_view id) { + arg_id = handler.on_arg_id(id); + } + } adapter = {handler, 0}; + begin = parse_arg_id(begin, end, adapter); + arg_id = adapter.arg_id; + Char c = begin != end ? *begin : Char(); + if (c == '}') { + handler.on_replacement_field(arg_id, begin); + return begin + 1; + } + if (c != ':') { + handler.on_error("missing '}' in format string"); + return end; + } + break; + } + } + begin = handler.on_format_specs(arg_id, begin + 1, end); + if (begin == end || *begin != '}') + return handler.on_error("unknown format specifier"), end; + return begin + 1; +} + +template +FMT_CONSTEXPR void parse_format_string(basic_string_view fmt, + Handler&& handler) { + auto begin = fmt.data(), end = begin + fmt.size(); + auto p = begin; + while (p != end) { + auto c = *p++; + if (c == '{') { + handler.on_text(begin, p - 1); + begin = p = parse_replacement_field(p - 1, end, handler); + } else if (c == '}') { + if (p == end || *p != '}') + return handler.on_error("unmatched '}' in format string"); + handler.on_text(begin, p); + begin = ++p; + } + } + handler.on_text(begin, end); +} + +// Checks char specs and returns true iff the presentation type is char-like. +FMT_CONSTEXPR inline auto check_char_specs(const format_specs& specs) -> bool { + auto type = specs.type(); + if (type != presentation_type::none && type != presentation_type::chr && + type != presentation_type::debug) { + return false; + } + if (specs.align() == align::numeric || specs.sign() != sign::none || + specs.alt()) { + report_error("invalid format specifier for char"); + } + return true; +} + +// A base class for compile-time strings. +struct compile_string {}; + +template +FMT_VISIBILITY("hidden") // Suppress an ld warning on macOS (#3769). +FMT_CONSTEXPR auto invoke_parse(parse_context& ctx) -> const Char* { + using mapped_type = remove_cvref_t>; + constexpr bool formattable = + std::is_constructible>::value; + if (!formattable) return ctx.begin(); // Error is reported in the value ctor. + using formatted_type = conditional_t; + return formatter().parse(ctx); +} + +template struct arg_pack {}; + +template +class format_string_checker { + private: + type types_[max_of(1, NUM_ARGS)]; + named_arg_info named_args_[max_of(1, NUM_NAMED_ARGS)]; + compile_parse_context context_; + + using parse_func = auto (*)(parse_context&) -> const Char*; + parse_func parse_funcs_[max_of(1, NUM_ARGS)]; + + public: + template + FMT_CONSTEXPR explicit format_string_checker(basic_string_view fmt, + arg_pack) + : types_{mapped_type_constant::value...}, + named_args_{}, + context_(fmt, NUM_ARGS, types_), + parse_funcs_{&invoke_parse...} { + int arg_index = 0, named_arg_index = 0; + FMT_APPLY_VARIADIC( + init_static_named_arg(named_args_, arg_index, named_arg_index)); + ignore_unused(arg_index, named_arg_index); + } + + FMT_CONSTEXPR void on_text(const Char*, const Char*) {} + + FMT_CONSTEXPR auto on_arg_id() -> int { return context_.next_arg_id(); } + FMT_CONSTEXPR auto on_arg_id(int id) -> int { + context_.check_arg_id(id); + return id; + } + FMT_CONSTEXPR auto on_arg_id(basic_string_view id) -> int { + for (int i = 0; i < NUM_NAMED_ARGS; ++i) { + if (named_args_[i].name == id) return named_args_[i].id; + } + if (!DYNAMIC_NAMES) on_error("argument not found"); + return -1; + } + + FMT_CONSTEXPR void on_replacement_field(int id, const Char* begin) { + on_format_specs(id, begin, begin); // Call parse() on empty specs. + } + + FMT_CONSTEXPR auto on_format_specs(int id, const Char* begin, const Char* end) + -> const Char* { + context_.advance_to(begin); + if (id >= 0 && id < NUM_ARGS) return parse_funcs_[id](context_); + + // If id is out of range, it means we do not know the type and cannot parse + // the format at compile time. Instead, skip over content until we finish + // the format spec, accounting for any nested replacements. + for (int bracket_count = 0; + begin != end && (bracket_count > 0 || *begin != '}'); ++begin) { + if (*begin == '{') + ++bracket_count; + else if (*begin == '}') + --bracket_count; + } + return begin; + } + + FMT_NORETURN FMT_CONSTEXPR void on_error(const char* message) { + report_error(message); + } +}; + +/// A contiguous memory buffer with an optional growing ability. It is an +/// internal class and shouldn't be used directly, only via `memory_buffer`. +template class buffer { + private: + T* ptr_; + size_t size_; + size_t capacity_; + + using grow_fun = void (*)(buffer& buf, size_t capacity); + grow_fun grow_; + + protected: + // Don't initialize ptr_ since it is not accessed to save a few cycles. + FMT_MSC_WARNING(suppress : 26495) + FMT_CONSTEXPR buffer(grow_fun grow, size_t sz) noexcept + : size_(sz), capacity_(sz), grow_(grow) {} + + constexpr buffer(grow_fun grow, T* p = nullptr, size_t sz = 0, + size_t cap = 0) noexcept + : ptr_(p), size_(sz), capacity_(cap), grow_(grow) {} + + FMT_CONSTEXPR20 ~buffer() = default; + buffer(buffer&&) = default; + + /// Sets the buffer data and capacity. + FMT_CONSTEXPR void set(T* buf_data, size_t buf_capacity) noexcept { + ptr_ = buf_data; + capacity_ = buf_capacity; + } + + public: + using value_type = T; + using const_reference = const T&; + + buffer(const buffer&) = delete; + void operator=(const buffer&) = delete; + + auto begin() noexcept -> T* { return ptr_; } + auto end() noexcept -> T* { return ptr_ + size_; } + + auto begin() const noexcept -> const T* { return ptr_; } + auto end() const noexcept -> const T* { return ptr_ + size_; } + + /// Returns the size of this buffer. + constexpr auto size() const noexcept -> size_t { return size_; } + + /// Returns the capacity of this buffer. + constexpr auto capacity() const noexcept -> size_t { return capacity_; } + + /// Returns a pointer to the buffer data (not null-terminated). + FMT_CONSTEXPR auto data() noexcept -> T* { return ptr_; } + FMT_CONSTEXPR auto data() const noexcept -> const T* { return ptr_; } + + /// Clears this buffer. + FMT_CONSTEXPR void clear() { size_ = 0; } + + // Tries resizing the buffer to contain `count` elements. If T is a POD type + // the new elements may not be initialized. + FMT_CONSTEXPR void try_resize(size_t count) { + try_reserve(count); + size_ = min_of(count, capacity_); + } + + // Tries increasing the buffer capacity to `new_capacity`. It can increase the + // capacity by a smaller amount than requested but guarantees there is space + // for at least one additional element either by increasing the capacity or by + // flushing the buffer if it is full. + FMT_CONSTEXPR void try_reserve(size_t new_capacity) { + if (new_capacity > capacity_) grow_(*this, new_capacity); + } + + FMT_CONSTEXPR void push_back(const T& value) { + try_reserve(size_ + 1); + ptr_[size_++] = value; + } + + /// Appends data to the end of the buffer. + template +// Workaround for MSVC2019 to fix error C2893: Failed to specialize function +// template 'void fmt::v11::detail::buffer::append(const U *,const U *)'. +#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1940 + FMT_CONSTEXPR20 +#endif + void + append(const U* begin, const U* end) { + while (begin != end) { + auto count = to_unsigned(end - begin); + try_reserve(size_ + count); + auto free_cap = capacity_ - size_; + if (free_cap < count) count = free_cap; + // A loop is faster than memcpy on small sizes. + T* out = ptr_ + size_; + for (size_t i = 0; i < count; ++i) out[i] = begin[i]; + size_ += count; + begin += count; + } + } + + template FMT_CONSTEXPR auto operator[](Idx index) -> T& { + return ptr_[index]; + } + template + FMT_CONSTEXPR auto operator[](Idx index) const -> const T& { + return ptr_[index]; + } +}; + +struct buffer_traits { + constexpr explicit buffer_traits(size_t) {} + constexpr auto count() const -> size_t { return 0; } + constexpr auto limit(size_t size) const -> size_t { return size; } +}; + +class fixed_buffer_traits { + private: + size_t count_ = 0; + size_t limit_; + + public: + constexpr explicit fixed_buffer_traits(size_t limit) : limit_(limit) {} + constexpr auto count() const -> size_t { return count_; } + FMT_CONSTEXPR auto limit(size_t size) -> size_t { + size_t n = limit_ > count_ ? limit_ - count_ : 0; + count_ += size; + return min_of(size, n); + } +}; + +// A buffer that writes to an output iterator when flushed. +template +class iterator_buffer : public Traits, public buffer { + private: + OutputIt out_; + enum { buffer_size = 256 }; + T data_[buffer_size]; + + static FMT_CONSTEXPR void grow(buffer& buf, size_t) { + if (buf.size() == buffer_size) static_cast(buf).flush(); + } + + void flush() { + auto size = this->size(); + this->clear(); + const T* begin = data_; + const T* end = begin + this->limit(size); + while (begin != end) *out_++ = *begin++; + } + + public: + explicit iterator_buffer(OutputIt out, size_t n = buffer_size) + : Traits(n), buffer(grow, data_, 0, buffer_size), out_(out) {} + iterator_buffer(iterator_buffer&& other) noexcept + : Traits(other), + buffer(grow, data_, 0, buffer_size), + out_(other.out_) {} + ~iterator_buffer() { + // Don't crash if flush fails during unwinding. + FMT_TRY { flush(); } + FMT_CATCH(...) {} + } + + auto out() -> OutputIt { + flush(); + return out_; + } + auto count() const -> size_t { return Traits::count() + this->size(); } +}; + +template +class iterator_buffer : public fixed_buffer_traits, + public buffer { + private: + T* out_; + enum { buffer_size = 256 }; + T data_[buffer_size]; + + static FMT_CONSTEXPR void grow(buffer& buf, size_t) { + if (buf.size() == buf.capacity()) + static_cast(buf).flush(); + } + + void flush() { + size_t n = this->limit(this->size()); + if (this->data() == out_) { + out_ += n; + this->set(data_, buffer_size); + } + this->clear(); + } + + public: + explicit iterator_buffer(T* out, size_t n = buffer_size) + : fixed_buffer_traits(n), buffer(grow, out, 0, n), out_(out) {} + iterator_buffer(iterator_buffer&& other) noexcept + : fixed_buffer_traits(other), + buffer(static_cast(other)), + out_(other.out_) { + if (this->data() != out_) { + this->set(data_, buffer_size); + this->clear(); + } + } + ~iterator_buffer() { flush(); } + + auto out() -> T* { + flush(); + return out_; + } + auto count() const -> size_t { + return fixed_buffer_traits::count() + this->size(); + } +}; + +template class iterator_buffer : public buffer { + public: + explicit iterator_buffer(T* out, size_t = 0) + : buffer([](buffer&, size_t) {}, out, 0, ~size_t()) {} + + auto out() -> T* { return &*this->end(); } +}; + +template +class container_buffer : public buffer { + private: + using value_type = typename Container::value_type; + + static FMT_CONSTEXPR void grow(buffer& buf, size_t capacity) { + auto& self = static_cast(buf); + self.container.resize(capacity); + self.set(&self.container[0], capacity); + } + + public: + Container& container; + + explicit container_buffer(Container& c) + : buffer(grow, c.size()), container(c) {} +}; + +// A buffer that writes to a container with the contiguous storage. +template +class iterator_buffer< + OutputIt, + enable_if_t::value && + is_contiguous::value, + typename OutputIt::container_type::value_type>> + : public container_buffer { + private: + using base = container_buffer; + + public: + explicit iterator_buffer(typename OutputIt::container_type& c) : base(c) {} + explicit iterator_buffer(OutputIt out, size_t = 0) + : base(get_container(out)) {} + + auto out() -> OutputIt { return OutputIt(this->container); } +}; + +// A buffer that counts the number of code units written discarding the output. +template class counting_buffer : public buffer { + private: + enum { buffer_size = 256 }; + T data_[buffer_size]; + size_t count_ = 0; + + static FMT_CONSTEXPR void grow(buffer& buf, size_t) { + if (buf.size() != buffer_size) return; + static_cast(buf).count_ += buf.size(); + buf.clear(); + } + + public: + FMT_CONSTEXPR counting_buffer() : buffer(grow, data_, 0, buffer_size) {} + + constexpr auto count() const noexcept -> size_t { + return count_ + this->size(); + } +}; + +template +struct is_back_insert_iterator> : std::true_type {}; + +template +struct has_back_insert_iterator_container_append : std::false_type {}; +template +struct has_back_insert_iterator_container_append< + OutputIt, InputIt, + void_t()) + .append(std::declval(), + std::declval()))>> : std::true_type {}; + +// An optimized version of std::copy with the output value type (T). +template ::value&& + has_back_insert_iterator_container_append< + OutputIt, InputIt>::value)> +FMT_CONSTEXPR20 auto copy(InputIt begin, InputIt end, OutputIt out) + -> OutputIt { + get_container(out).append(begin, end); + return out; +} + +template ::value && + !has_back_insert_iterator_container_append< + OutputIt, InputIt>::value)> +FMT_CONSTEXPR20 auto copy(InputIt begin, InputIt end, OutputIt out) + -> OutputIt { + auto& c = get_container(out); + c.insert(c.end(), begin, end); + return out; +} + +template ::value)> +FMT_CONSTEXPR auto copy(InputIt begin, InputIt end, OutputIt out) -> OutputIt { + while (begin != end) *out++ = static_cast(*begin++); + return out; +} + +template +FMT_CONSTEXPR auto copy(basic_string_view s, OutputIt out) -> OutputIt { + return copy(s.begin(), s.end(), out); +} + +template +struct is_buffer_appender : std::false_type {}; +template +struct is_buffer_appender< + It, bool_constant< + is_back_insert_iterator::value && + std::is_base_of, + typename It::container_type>::value>> + : std::true_type {}; + +// Maps an output iterator to a buffer. +template ::value)> +auto get_buffer(OutputIt out) -> iterator_buffer { + return iterator_buffer(out); +} +template ::value)> +auto get_buffer(OutputIt out) -> buffer& { + return get_container(out); +} + +template +auto get_iterator(Buf& buf, OutputIt) -> decltype(buf.out()) { + return buf.out(); +} +template +auto get_iterator(buffer&, OutputIt out) -> OutputIt { + return out; +} + +// This type is intentionally undefined, only used for errors. +template struct type_is_unformattable_for; + +template struct string_value { + const Char* data; + size_t size; + auto str() const -> basic_string_view { return {data, size}; } +}; + +template struct custom_value { + using char_type = typename Context::char_type; + void* value; + void (*format)(void* arg, parse_context& parse_ctx, Context& ctx); +}; + +template struct named_arg_value { + const named_arg_info* data; + size_t size; +}; + +struct custom_tag {}; + +#if !FMT_BUILTIN_TYPES +# define FMT_BUILTIN , monostate +#else +# define FMT_BUILTIN +#endif + +// A formatting argument value. +template class value { + public: + using char_type = typename Context::char_type; + + union { + monostate no_value; + int int_value; + unsigned uint_value; + long long long_long_value; + unsigned long long ulong_long_value; + int128_opt int128_value; + uint128_opt uint128_value; + bool bool_value; + char_type char_value; + float float_value; + double double_value; + long double long_double_value; + const void* pointer; + string_value string; + custom_value custom; + named_arg_value named_args; + }; + + constexpr FMT_INLINE value() : no_value() {} + constexpr FMT_INLINE value(signed char x) : int_value(x) {} + constexpr FMT_INLINE value(unsigned char x FMT_BUILTIN) : uint_value(x) {} + constexpr FMT_INLINE value(signed short x) : int_value(x) {} + constexpr FMT_INLINE value(unsigned short x FMT_BUILTIN) : uint_value(x) {} + constexpr FMT_INLINE value(int x) : int_value(x) {} + constexpr FMT_INLINE value(unsigned x FMT_BUILTIN) : uint_value(x) {} + FMT_CONSTEXPR FMT_INLINE value(long x FMT_BUILTIN) : value(long_type(x)) {} + FMT_CONSTEXPR FMT_INLINE value(unsigned long x FMT_BUILTIN) + : value(ulong_type(x)) {} + constexpr FMT_INLINE value(long long x FMT_BUILTIN) : long_long_value(x) {} + constexpr FMT_INLINE value(unsigned long long x FMT_BUILTIN) + : ulong_long_value(x) {} + FMT_INLINE value(int128_opt x FMT_BUILTIN) : int128_value(x) {} + FMT_INLINE value(uint128_opt x FMT_BUILTIN) : uint128_value(x) {} + constexpr FMT_INLINE value(bool x FMT_BUILTIN) : bool_value(x) {} + + template + constexpr FMT_INLINE value(bitint x FMT_BUILTIN) : long_long_value(x) { + static_assert(N <= 64, "unsupported _BitInt"); + } + template + constexpr FMT_INLINE value(ubitint x FMT_BUILTIN) : ulong_long_value(x) { + static_assert(N <= 64, "unsupported _BitInt"); + } + + template ::value)> + constexpr FMT_INLINE value(T x FMT_BUILTIN) : char_value(x) { + static_assert( + std::is_same::value || std::is_same::value, + "mixing character types is disallowed"); + } + + constexpr FMT_INLINE value(float x FMT_BUILTIN) : float_value(x) {} + constexpr FMT_INLINE value(double x FMT_BUILTIN) : double_value(x) {} + FMT_INLINE value(long double x FMT_BUILTIN) : long_double_value(x) {} + + FMT_CONSTEXPR FMT_INLINE value(char_type* x FMT_BUILTIN) { + string.data = x; + if (is_constant_evaluated()) string.size = 0; + } + FMT_CONSTEXPR FMT_INLINE value(const char_type* x FMT_BUILTIN) { + string.data = x; + if (is_constant_evaluated()) string.size = 0; + } + template , + FMT_ENABLE_IF(!std::is_pointer::value)> + FMT_CONSTEXPR value(const T& x FMT_BUILTIN) { + static_assert(std::is_same::value, + "mixing character types is disallowed"); + auto sv = to_string_view(x); + string.data = sv.data(); + string.size = sv.size(); + } + FMT_INLINE value(void* x FMT_BUILTIN) : pointer(x) {} + FMT_INLINE value(const void* x FMT_BUILTIN) : pointer(x) {} + FMT_INLINE value(volatile void* x FMT_BUILTIN) + : pointer(const_cast(x)) {} + FMT_INLINE value(const volatile void* x FMT_BUILTIN) + : pointer(const_cast(x)) {} + FMT_INLINE value(nullptr_t) : pointer(nullptr) {} + + template ::value || + std::is_member_pointer::value)> + value(const T&) { + // Formatting of arbitrary pointers is disallowed. If you want to format a + // pointer cast it to `void*` or `const void*`. In particular, this forbids + // formatting of `[const] volatile char*` printed as bool by iostreams. + static_assert(sizeof(T) == 0, + "formatting of non-void pointers is disallowed"); + } + + template ::value)> + value(const T& x) : value(format_as(x)) {} + template ::value)> + value(const T& x) : value(formatter::format_as(x)) {} + + template ::value)> + value(const T& named_arg) : value(named_arg.value) {} + + template ::value || !FMT_BUILTIN_TYPES)> + FMT_CONSTEXPR20 FMT_INLINE value(T& x) : value(x, custom_tag()) {} + + FMT_ALWAYS_INLINE value(const named_arg_info* args, size_t size) + : named_args{args, size} {} + + private: + template ())> + FMT_CONSTEXPR value(T& x, custom_tag) { + using value_type = remove_const_t; + // T may overload operator& e.g. std::vector::reference in libc++. + if (!is_constant_evaluated()) { + custom.value = + const_cast(&reinterpret_cast(x)); + } else { + custom.value = nullptr; +#if defined(__cpp_if_constexpr) + if constexpr (std::is_same*>::value) + custom.value = const_cast(&x); +#endif + } + custom.format = format_custom>; + } + + template ())> + FMT_CONSTEXPR value(const T&, custom_tag) { + // Cannot format an argument; to make type T formattable provide a + // formatter specialization: https://fmt.dev/latest/api.html#udt. + type_is_unformattable_for _; + } + + // Formats an argument of a custom type, such as a user-defined class. + template + static void format_custom(void* arg, parse_context& parse_ctx, + Context& ctx) { + auto f = Formatter(); + parse_ctx.advance_to(f.parse(parse_ctx)); + using qualified_type = + conditional_t(), const T, T>; + // format must be const for compatibility with std::format and compilation. + const auto& cf = f; + ctx.advance_to(cf.format(*static_cast(arg), ctx)); + } +}; + +enum { packed_arg_bits = 4 }; +// Maximum number of arguments with packed types. +enum { max_packed_args = 62 / packed_arg_bits }; +enum : unsigned long long { is_unpacked_bit = 1ULL << 63 }; +enum : unsigned long long { has_named_args_bit = 1ULL << 62 }; + +template +struct is_output_iterator : std::false_type {}; + +template <> struct is_output_iterator : std::true_type {}; + +template +struct is_output_iterator< + It, T, + enable_if_t&>()++), + T>::value>> : std::true_type {}; + +#ifndef FMT_USE_LOCALE +# define FMT_USE_LOCALE (FMT_OPTIMIZE_SIZE <= 1) +#endif + +// A type-erased reference to an std::locale to avoid a heavy include. +class locale_ref { +#if FMT_USE_LOCALE + private: + const void* locale_; // A type-erased pointer to std::locale. + + public: + constexpr locale_ref() : locale_(nullptr) {} + template locale_ref(const Locale& loc); + + inline explicit operator bool() const noexcept { return locale_ != nullptr; } +#endif // FMT_USE_LOCALE + + public: + template auto get() const -> Locale; +}; + +template constexpr auto encode_types() -> unsigned long long { + return 0; +} + +template +constexpr auto encode_types() -> unsigned long long { + return static_cast(stored_type_constant::value) | + (encode_types() << packed_arg_bits); +} + +template +constexpr auto make_descriptor() -> unsigned long long { + return NUM_ARGS <= max_packed_args ? encode_types() + : is_unpacked_bit | NUM_ARGS; +} + +template +using arg_t = conditional_t, + basic_format_arg>; + +template +struct named_arg_store { + // args_[0].named_args points to named_args to avoid bloating format_args. + arg_t args[1 + NUM_ARGS]; + named_arg_info named_args[NUM_NAMED_ARGS]; + + template + FMT_CONSTEXPR FMT_ALWAYS_INLINE named_arg_store(T&... values) + : args{{named_args, NUM_NAMED_ARGS}, values...} { + int arg_index = 0, named_arg_index = 0; + FMT_APPLY_VARIADIC( + init_named_arg(named_args, arg_index, named_arg_index, values)); + } + + named_arg_store(named_arg_store&& rhs) { + args[0] = {named_args, NUM_NAMED_ARGS}; + for (size_t i = 1; i < sizeof(args) / sizeof(*args); ++i) + args[i] = rhs.args[i]; + for (size_t i = 0; i < NUM_NAMED_ARGS; ++i) + named_args[i] = rhs.named_args[i]; + } + + named_arg_store(const named_arg_store& rhs) = delete; + named_arg_store& operator=(const named_arg_store& rhs) = delete; + named_arg_store& operator=(named_arg_store&& rhs) = delete; + operator const arg_t*() const { return args + 1; } +}; + +// An array of references to arguments. It can be implicitly converted to +// `basic_format_args` for passing into type-erased formatting functions +// such as `vformat`. It is a plain struct to reduce binary size in debug mode. +template +struct format_arg_store { + // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning. + using type = + conditional_t[max_of(1, NUM_ARGS)], + named_arg_store>; + type args; +}; + +// TYPE can be different from type_constant, e.g. for __float128. +template struct native_formatter { + private: + dynamic_format_specs specs_; + + public: + using nonlocking = void; + + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + if (ctx.begin() == ctx.end() || *ctx.begin() == '}') return ctx.begin(); + auto end = parse_format_specs(ctx.begin(), ctx.end(), specs_, ctx, TYPE); + if (const_check(TYPE == type::char_type)) check_char_specs(specs_); + return end; + } + + template + FMT_CONSTEXPR void set_debug_format(bool set = true) { + specs_.set_type(set ? presentation_type::debug : presentation_type::none); + } + + FMT_PRAGMA_CLANG(diagnostic ignored "-Wundefined-inline") + template + FMT_CONSTEXPR auto format(const T& val, FormatContext& ctx) const + -> decltype(ctx.out()); +}; + +template +struct locking + : bool_constant::value == type::custom_type> {}; +template +struct locking>::nonlocking>> + : std::false_type {}; + +template FMT_CONSTEXPR inline auto is_locking() -> bool { + return locking::value; +} +template +FMT_CONSTEXPR inline auto is_locking() -> bool { + return locking::value || is_locking(); +} + +FMT_API void vformat_to(buffer& buf, string_view fmt, format_args args, + locale_ref loc = {}); + +#if FMT_WIN32 +FMT_API void vprint_mojibake(FILE*, string_view, format_args, bool); +#else // format_args is passed by reference since it is defined later. +inline void vprint_mojibake(FILE*, string_view, const format_args&, bool) {} +#endif +} // namespace detail + +// The main public API. + +template +FMT_CONSTEXPR void parse_context::do_check_arg_id(int arg_id) { + // Argument id is only checked at compile time during parsing because + // formatting has its own validation. + if (detail::is_constant_evaluated() && use_constexpr_cast) { + auto ctx = static_cast*>(this); + if (arg_id >= ctx->num_args()) report_error("argument not found"); + } +} + +template +FMT_CONSTEXPR void parse_context::check_dynamic_spec(int arg_id) { + using detail::compile_parse_context; + if (detail::is_constant_evaluated() && use_constexpr_cast) + static_cast*>(this)->check_dynamic_spec(arg_id); +} + +FMT_BEGIN_EXPORT + +// An output iterator that appends to a buffer. It is used instead of +// back_insert_iterator to reduce symbol sizes and avoid dependency. +template class basic_appender { + protected: + detail::buffer* container; + + public: + using container_type = detail::buffer; + + FMT_CONSTEXPR basic_appender(detail::buffer& buf) : container(&buf) {} + + FMT_CONSTEXPR20 auto operator=(T c) -> basic_appender& { + container->push_back(c); + return *this; + } + FMT_CONSTEXPR20 auto operator*() -> basic_appender& { return *this; } + FMT_CONSTEXPR20 auto operator++() -> basic_appender& { return *this; } + FMT_CONSTEXPR20 auto operator++(int) -> basic_appender { return *this; } +}; + +// A formatting argument. Context is a template parameter for the compiled API +// where output can be unbuffered. +template class basic_format_arg { + private: + detail::value value_; + detail::type type_; + + friend class basic_format_args; + + using char_type = typename Context::char_type; + + public: + class handle { + private: + detail::custom_value custom_; + + public: + explicit handle(detail::custom_value custom) : custom_(custom) {} + + void format(parse_context& parse_ctx, Context& ctx) const { + custom_.format(custom_.value, parse_ctx, ctx); + } + }; + + constexpr basic_format_arg() : type_(detail::type::none_type) {} + basic_format_arg(const detail::named_arg_info* args, size_t size) + : value_(args, size) {} + template + basic_format_arg(T&& val) + : value_(val), type_(detail::stored_type_constant::value) {} + + constexpr explicit operator bool() const noexcept { + return type_ != detail::type::none_type; + } + auto type() const -> detail::type { return type_; } + + /** + * Visits an argument dispatching to the appropriate visit method based on + * the argument type. For example, if the argument type is `double` then + * `vis(value)` will be called with the value of type `double`. + */ + template + FMT_CONSTEXPR FMT_INLINE auto visit(Visitor&& vis) const -> decltype(vis(0)) { + using detail::map; + switch (type_) { + case detail::type::none_type: break; + case detail::type::int_type: return vis(value_.int_value); + case detail::type::uint_type: return vis(value_.uint_value); + case detail::type::long_long_type: return vis(value_.long_long_value); + case detail::type::ulong_long_type: return vis(value_.ulong_long_value); + case detail::type::int128_type: return vis(map(value_.int128_value)); + case detail::type::uint128_type: return vis(map(value_.uint128_value)); + case detail::type::bool_type: return vis(value_.bool_value); + case detail::type::char_type: return vis(value_.char_value); + case detail::type::float_type: return vis(value_.float_value); + case detail::type::double_type: return vis(value_.double_value); + case detail::type::long_double_type: return vis(value_.long_double_value); + case detail::type::cstring_type: return vis(value_.string.data); + case detail::type::string_type: return vis(value_.string.str()); + case detail::type::pointer_type: return vis(value_.pointer); + case detail::type::custom_type: return vis(handle(value_.custom)); + } + return vis(monostate()); + } + + auto format_custom(const char_type* parse_begin, + parse_context& parse_ctx, Context& ctx) + -> bool { + if (type_ != detail::type::custom_type) return false; + parse_ctx.advance_to(parse_begin); + value_.custom.format(value_.custom.value, parse_ctx, ctx); + return true; + } +}; + +/** + * A view of a collection of formatting arguments. To avoid lifetime issues it + * should only be used as a parameter type in type-erased functions such as + * `vformat`: + * + * void vlog(fmt::string_view fmt, fmt::format_args args); // OK + * fmt::format_args args = fmt::make_format_args(); // Dangling reference + */ +template class basic_format_args { + private: + // A descriptor that contains information about formatting arguments. + // If the number of arguments is less or equal to max_packed_args then + // argument types are passed in the descriptor. This reduces binary code size + // per formatting function call. + unsigned long long desc_; + union { + // If is_packed() returns true then argument values are stored in values_; + // otherwise they are stored in args_. This is done to improve cache + // locality and reduce compiled code size since storing larger objects + // may require more code (at least on x86-64) even if the same amount of + // data is actually copied to stack. It saves ~10% on the bloat test. + const detail::value* values_; + const basic_format_arg* args_; + }; + + constexpr auto is_packed() const -> bool { + return (desc_ & detail::is_unpacked_bit) == 0; + } + constexpr auto has_named_args() const -> bool { + return (desc_ & detail::has_named_args_bit) != 0; + } + + FMT_CONSTEXPR auto type(int index) const -> detail::type { + int shift = index * detail::packed_arg_bits; + unsigned mask = (1 << detail::packed_arg_bits) - 1; + return static_cast((desc_ >> shift) & mask); + } + + template + using store = + detail::format_arg_store; + + public: + using format_arg = basic_format_arg; + + constexpr basic_format_args() : desc_(0), args_(nullptr) {} + + /// Constructs a `basic_format_args` object from `format_arg_store`. + template + constexpr FMT_ALWAYS_INLINE basic_format_args( + const store& s) + : desc_(DESC | (NUM_NAMED_ARGS != 0 ? +detail::has_named_args_bit : 0)), + values_(s.args) {} + + template detail::max_packed_args)> + constexpr basic_format_args(const store& s) + : desc_(DESC | (NUM_NAMED_ARGS != 0 ? +detail::has_named_args_bit : 0)), + args_(s.args) {} + + /// Constructs a `basic_format_args` object from a dynamic list of arguments. + constexpr basic_format_args(const format_arg* args, int count, + bool has_named = false) + : desc_(detail::is_unpacked_bit | detail::to_unsigned(count) | + (has_named ? +detail::has_named_args_bit : 0)), + args_(args) {} + + /// Returns the argument with the specified id. + FMT_CONSTEXPR auto get(int id) const -> format_arg { + auto arg = format_arg(); + if (!is_packed()) { + if (id < max_size()) arg = args_[id]; + return arg; + } + if (static_cast(id) >= detail::max_packed_args) return arg; + arg.type_ = type(id); + if (arg.type_ != detail::type::none_type) arg.value_ = values_[id]; + return arg; + } + + template + auto get(basic_string_view name) const -> format_arg { + int id = get_id(name); + return id >= 0 ? get(id) : format_arg(); + } + + template + FMT_CONSTEXPR auto get_id(basic_string_view name) const -> int { + if (!has_named_args()) return -1; + const auto& named_args = + (is_packed() ? values_[-1] : args_[-1].value_).named_args; + for (size_t i = 0; i < named_args.size; ++i) { + if (named_args.data[i].name == name) return named_args.data[i].id; + } + return -1; + } + + auto max_size() const -> int { + unsigned long long max_packed = detail::max_packed_args; + return static_cast(is_packed() ? max_packed + : desc_ & ~detail::is_unpacked_bit); + } +}; + +// A formatting context. +class context { + private: + appender out_; + format_args args_; + FMT_NO_UNIQUE_ADDRESS detail::locale_ref loc_; + + public: + /// The character type for the output. + using char_type = char; + + using iterator = appender; + using format_arg = basic_format_arg; + using parse_context_type FMT_DEPRECATED = parse_context<>; + template using formatter_type FMT_DEPRECATED = formatter; + enum { builtin_types = FMT_BUILTIN_TYPES }; + + /// Constructs a `context` object. References to the arguments are stored + /// in the object so make sure they have appropriate lifetimes. + FMT_CONSTEXPR context(iterator out, format_args args, + detail::locale_ref loc = {}) + : out_(out), args_(args), loc_(loc) {} + context(context&&) = default; + context(const context&) = delete; + void operator=(const context&) = delete; + + FMT_CONSTEXPR auto arg(int id) const -> format_arg { return args_.get(id); } + inline auto arg(string_view name) const -> format_arg { + return args_.get(name); + } + FMT_CONSTEXPR auto arg_id(string_view name) const -> int { + return args_.get_id(name); + } + auto args() const -> const format_args& { return args_; } + + // Returns an iterator to the beginning of the output range. + FMT_CONSTEXPR auto out() const -> iterator { return out_; } + + // Advances the begin iterator to `it`. + FMT_CONSTEXPR void advance_to(iterator) {} + + FMT_CONSTEXPR auto locale() const -> detail::locale_ref { return loc_; } +}; + +template struct runtime_format_string { + basic_string_view str; +}; + +/** + * Creates a runtime format string. + * + * **Example**: + * + * // Check format string at runtime instead of compile-time. + * fmt::print(fmt::runtime("{:d}"), "I am not a number"); + */ +inline auto runtime(string_view s) -> runtime_format_string<> { return {{s}}; } + +/// A compile-time format string. Use `format_string` in the public API to +/// prevent type deduction. +template struct fstring { + private: + static constexpr int num_static_named_args = + detail::count_static_named_args(); + + using checker = detail::format_string_checker< + char, static_cast(sizeof...(T)), num_static_named_args, + num_static_named_args != detail::count_named_args()>; + + using arg_pack = detail::arg_pack; + + public: + string_view str; + using t = fstring; + + // Reports a compile-time error if S is not a valid format string for T. + template + FMT_CONSTEVAL FMT_ALWAYS_INLINE fstring(const char (&s)[N]) : str(s, N - 1) { + using namespace detail; + static_assert(count<(is_view>::value && + std::is_reference::value)...>() == 0, + "passing views as lvalues is disallowed"); + if (FMT_USE_CONSTEVAL) parse_format_string(s, checker(s, arg_pack())); +#ifdef FMT_ENFORCE_COMPILE_STRING + static_assert( + FMT_USE_CONSTEVAL && sizeof(s) != 0, + "FMT_ENFORCE_COMPILE_STRING requires format strings to use FMT_STRING"); +#endif + } + template ::value)> + FMT_CONSTEVAL FMT_ALWAYS_INLINE fstring(const S& s) : str(s) { + auto sv = string_view(str); + if (FMT_USE_CONSTEVAL) + detail::parse_format_string(sv, checker(sv, arg_pack())); +#ifdef FMT_ENFORCE_COMPILE_STRING + static_assert( + FMT_USE_CONSTEVAL && sizeof(s) != 0, + "FMT_ENFORCE_COMPILE_STRING requires format strings to use FMT_STRING"); +#endif + } + template ::value&& + std::is_same::value)> + FMT_ALWAYS_INLINE fstring(const S&) : str(S()) { + FMT_CONSTEXPR auto sv = string_view(S()); + FMT_CONSTEXPR int unused = + (parse_format_string(sv, checker(sv, arg_pack())), 0); + detail::ignore_unused(unused); + } + fstring(runtime_format_string<> fmt) : str(fmt.str) {} + + // Returning by reference generates better code in debug mode. + FMT_ALWAYS_INLINE operator const string_view&() const { return str; } + auto get() const -> string_view { return str; } +}; + +template using format_string = typename fstring::t; + +template +using is_formattable = bool_constant::value, int*, T>, Char>, + void>::value>; +#ifdef __cpp_concepts +template +concept formattable = is_formattable, Char>::value; +#endif + +template +using has_formatter FMT_DEPRECATED = std::is_constructible>; + +// A formatter specialization for natively supported types. +template +struct formatter::value != + detail::type::custom_type>> + : detail::native_formatter::value> { +}; + +/** + * Constructs an object that stores references to arguments and can be + * implicitly converted to `format_args`. `Context` can be omitted in which case + * it defaults to `context`. See `arg` for lifetime considerations. + */ +// Take arguments by lvalue references to avoid some lifetime issues, e.g. +// auto args = make_format_args(std::string()); +template (), + unsigned long long DESC = detail::make_descriptor()> +constexpr FMT_ALWAYS_INLINE auto make_format_args(T&... args) + -> detail::format_arg_store { + // Suppress warnings for pathological types convertible to detail::value. + FMT_PRAGMA_GCC(diagnostic ignored "-Wconversion") + return {{args...}}; +} + +template +using vargs = + detail::format_arg_store(), + detail::make_descriptor()>; + +/** + * Returns a named argument to be used in a formatting function. + * It should only be used in a call to a formatting function. + * + * **Example**: + * + * fmt::print("The answer is {answer}.", fmt::arg("answer", 42)); + */ +template +inline auto arg(const Char* name, const T& arg) -> detail::named_arg { + return {name, arg}; +} + +/// Formats a string and writes the output to `out`. +template , + char>::value)> +auto vformat_to(OutputIt&& out, string_view fmt, format_args args) + -> remove_cvref_t { + auto&& buf = detail::get_buffer(out); + detail::vformat_to(buf, fmt, args, {}); + return detail::get_iterator(buf, out); +} + +/** + * Formats `args` according to specifications in `fmt`, writes the result to + * the output iterator `out` and returns the iterator past the end of the output + * range. `format_to` does not append a terminating null character. + * + * **Example**: + * + * auto out = std::vector(); + * fmt::format_to(std::back_inserter(out), "{}", 42); + */ +template , + char>::value)> +FMT_INLINE auto format_to(OutputIt&& out, format_string fmt, T&&... args) + -> remove_cvref_t { + return vformat_to(out, fmt.str, vargs{{args...}}); +} + +template struct format_to_n_result { + /// Iterator past the end of the output range. + OutputIt out; + /// Total (not truncated) output size. + size_t size; +}; + +template ::value)> +auto vformat_to_n(OutputIt out, size_t n, string_view fmt, format_args args) + -> format_to_n_result { + using traits = detail::fixed_buffer_traits; + auto buf = detail::iterator_buffer(out, n); + detail::vformat_to(buf, fmt, args, {}); + return {buf.out(), buf.count()}; +} + +/** + * Formats `args` according to specifications in `fmt`, writes up to `n` + * characters of the result to the output iterator `out` and returns the total + * (not truncated) output size and the iterator past the end of the output + * range. `format_to_n` does not append a terminating null character. + */ +template ::value)> +FMT_INLINE auto format_to_n(OutputIt out, size_t n, format_string fmt, + T&&... args) -> format_to_n_result { + return vformat_to_n(out, n, fmt.str, vargs{{args...}}); +} + +struct format_to_result { + /// Pointer to just after the last successful write in the array. + char* out; + /// Specifies if the output was truncated. + bool truncated; + + FMT_CONSTEXPR operator char*() const { + // Report truncation to prevent silent data loss. + if (truncated) report_error("output is truncated"); + return out; + } +}; + +template +auto vformat_to(char (&out)[N], string_view fmt, format_args args) + -> format_to_result { + auto result = vformat_to_n(out, N, fmt, args); + return {result.out, result.size > N}; +} + +template +FMT_INLINE auto format_to(char (&out)[N], format_string fmt, T&&... args) + -> format_to_result { + auto result = vformat_to_n(out, N, fmt.str, vargs{{args...}}); + return {result.out, result.size > N}; +} + +/// Returns the number of chars in the output of `format(fmt, args...)`. +template +FMT_NODISCARD FMT_INLINE auto formatted_size(format_string fmt, + T&&... args) -> size_t { + auto buf = detail::counting_buffer<>(); + detail::vformat_to(buf, fmt.str, vargs{{args...}}, {}); + return buf.count(); +} + +FMT_API void vprint(string_view fmt, format_args args); +FMT_API void vprint(FILE* f, string_view fmt, format_args args); +FMT_API void vprintln(FILE* f, string_view fmt, format_args args); +FMT_API void vprint_buffered(FILE* f, string_view fmt, format_args args); + +/** + * Formats `args` according to specifications in `fmt` and writes the output + * to `stdout`. + * + * **Example**: + * + * fmt::print("The answer is {}.", 42); + */ +template +FMT_INLINE void print(format_string fmt, T&&... args) { + vargs va = {{args...}}; + if (detail::const_check(!detail::use_utf8)) + return detail::vprint_mojibake(stdout, fmt.str, va, false); + return detail::is_locking() ? vprint_buffered(stdout, fmt.str, va) + : vprint(fmt.str, va); +} + +/** + * Formats `args` according to specifications in `fmt` and writes the + * output to the file `f`. + * + * **Example**: + * + * fmt::print(stderr, "Don't {}!", "panic"); + */ +template +FMT_INLINE void print(FILE* f, format_string fmt, T&&... args) { + vargs va = {{args...}}; + if (detail::const_check(!detail::use_utf8)) + return detail::vprint_mojibake(f, fmt.str, va, false); + return detail::is_locking() ? vprint_buffered(f, fmt.str, va) + : vprint(f, fmt.str, va); +} + +/// Formats `args` according to specifications in `fmt` and writes the output +/// to the file `f` followed by a newline. +template +FMT_INLINE void println(FILE* f, format_string fmt, T&&... args) { + vargs va = {{args...}}; + return detail::const_check(detail::use_utf8) + ? vprintln(f, fmt.str, va) + : detail::vprint_mojibake(f, fmt.str, va, true); +} + +/// Formats `args` according to specifications in `fmt` and writes the output +/// to `stdout` followed by a newline. +template +FMT_INLINE void println(format_string fmt, T&&... args) { + return fmt::println(stdout, fmt, static_cast(args)...); +} + +FMT_END_EXPORT +FMT_PRAGMA_CLANG(diagnostic pop) +FMT_PRAGMA_GCC(pop_options) +FMT_END_NAMESPACE + +#ifdef FMT_HEADER_ONLY +# include "format.h" +#endif +#endif // FMT_BASE_H_ diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/chrono.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/chrono.h index b8dbd8ba0..e0c81589e 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/chrono.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/chrono.h @@ -8,36 +8,25 @@ #ifndef FMT_CHRONO_H_ #define FMT_CHRONO_H_ -#include -#include -#include // std::isfinite -#include // std::memcpy -#include -#include -#include -#include -#include +#ifndef FMT_MODULE +# include +# include +# include // std::isfinite +# include // std::memcpy +# include +# include +# include +# include +# include +#endif #include "format.h" FMT_BEGIN_NAMESPACE -// Enable tzset. -#ifndef FMT_USE_TZSET - // UWP doesn't provide _tzset. - #if FMT_HAS_INCLUDE("winapifamily.h") - #include - #endif - #if defined(_WIN32) && (!defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP)) - #define FMT_USE_TZSET 1 - #else - #define FMT_USE_TZSET 0 - #endif -#endif - // Enable safe chrono durations, unless explicitly disabled. #ifndef FMT_SAFE_DURATION_CAST - #define FMT_SAFE_DURATION_CAST 1 +# define FMT_SAFE_DURATION_CAST 1 #endif #if FMT_SAFE_DURATION_CAST @@ -49,72 +38,75 @@ FMT_BEGIN_NAMESPACE // Copyright Paul Dreik 2019 namespace safe_duration_cast { -template ::value && - std::numeric_limits::is_signed == std::numeric_limits::is_signed)> -FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) { - ec = 0; - using F = std::numeric_limits; - using T = std::numeric_limits; - static_assert(F::is_integer, "From must be integral"); - static_assert(T::is_integer, "To must be integral"); - - // A and B are both signed, or both unsigned. - if (detail::const_check(F::digits <= T::digits)) { - // From fits in To without any problem. - } else { - // From does not always fit in To, resort to a dynamic check. - if (from < (T::min)() || from > (T::max)()) { - // outside range. - ec = 1; - return {}; - } - } - return static_cast(from); + std::numeric_limits::is_signed == + std::numeric_limits::is_signed)> +FMT_CONSTEXPR auto lossless_integral_conversion(const From from, int& ec) + -> To { + ec = 0; + using F = std::numeric_limits; + using T = std::numeric_limits; + static_assert(F::is_integer, "From must be integral"); + static_assert(T::is_integer, "To must be integral"); + + // A and B are both signed, or both unsigned. + if (detail::const_check(F::digits <= T::digits)) { + // From fits in To without any problem. + } else { + // From does not always fit in To, resort to a dynamic check. + if (from < (T::min)() || from > (T::max)()) { + // outside range. + ec = 1; + return {}; + } + } + return static_cast(from); } -/** - * converts From to To, without loss. If the dynamic value of from - * can't be converted to To without loss, ec is set. - */ -template ::value && - std::numeric_limits::is_signed != std::numeric_limits::is_signed)> -FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) { - ec = 0; - using F = std::numeric_limits; - using T = std::numeric_limits; - static_assert(F::is_integer, "From must be integral"); - static_assert(T::is_integer, "To must be integral"); - - if (detail::const_check(F::is_signed && !T::is_signed)) { - // From may be negative, not allowed! - if (fmt::detail::is_negative(from)) { - ec = 1; - return {}; - } - // From is positive. Can it always fit in To? - if (detail::const_check(F::digits > T::digits) && - from > static_cast(detail::max_value())) { - ec = 1; - return {}; - } - } - - if (detail::const_check(!F::is_signed && T::is_signed && F::digits >= T::digits) && + std::numeric_limits::is_signed != + std::numeric_limits::is_signed)> +FMT_CONSTEXPR auto lossless_integral_conversion(const From from, int& ec) + -> To { + ec = 0; + using F = std::numeric_limits; + using T = std::numeric_limits; + static_assert(F::is_integer, "From must be integral"); + static_assert(T::is_integer, "To must be integral"); + + if (detail::const_check(F::is_signed && !T::is_signed)) { + // From may be negative, not allowed! + if (fmt::detail::is_negative(from)) { + ec = 1; + return {}; + } + // From is positive. Can it always fit in To? + if (detail::const_check(F::digits > T::digits) && from > static_cast(detail::max_value())) { - ec = 1; - return {}; - } - return static_cast(from); // Lossless conversion. + ec = 1; + return {}; + } + } + + if (detail::const_check(!F::is_signed && T::is_signed && + F::digits >= T::digits) && + from > static_cast(detail::max_value())) { + ec = 1; + return {}; + } + return static_cast(from); // Lossless conversion. } -template ::value)> -FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) { - ec = 0; - return from; +template ::value)> +FMT_CONSTEXPR auto lossless_integral_conversion(const From from, int& ec) + -> To { + ec = 0; + return from; } // function // clang-format off @@ -131,1875 +123,2208 @@ FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) { * -Inf | -Inf */ // clang-format on -template ::value)> -FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) { - ec = 0; - using T = std::numeric_limits; - static_assert(std::is_floating_point::value, "From must be floating"); - static_assert(std::is_floating_point::value, "To must be floating"); - - // catch the only happy case - if (std::isfinite(from)) { - if (from >= T::lowest() && from <= (T::max)()) { - return static_cast(from); - } - // not within range. - ec = 1; - return {}; - } - - // nan and inf will be preserved - return static_cast(from); +template ::value)> +FMT_CONSTEXPR auto safe_float_conversion(const From from, int& ec) -> To { + ec = 0; + using T = std::numeric_limits; + static_assert(std::is_floating_point::value, "From must be floating"); + static_assert(std::is_floating_point::value, "To must be floating"); + + // catch the only happy case + if (std::isfinite(from)) { + if (from >= T::lowest() && from <= (T::max)()) { + return static_cast(from); + } + // not within range. + ec = 1; + return {}; + } + + // nan and inf will be preserved + return static_cast(from); } // function -template ::value)> -FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) { - ec = 0; - static_assert(std::is_floating_point::value, "From must be floating"); - return from; -} - -/** - * safe duration cast between integral durations - */ -template ::value), - FMT_ENABLE_IF(std::is_integral::value)> -To safe_duration_cast(std::chrono::duration from, int& ec) { - using From = std::chrono::duration; - ec = 0; - // the basic idea is that we need to convert from count() in the from type - // to count() in the To type, by multiplying it with this: - struct Factor : std::ratio_divide {}; - - static_assert(Factor::num > 0, "num must be positive"); - static_assert(Factor::den > 0, "den must be positive"); - - // the conversion is like this: multiply from.count() with Factor::num - // /Factor::den and convert it to To::rep, all this without - // overflow/underflow. let's start by finding a suitable type that can hold - // both To, From and Factor::num - using IntermediateRep = typename std::common_type::type; - - // safe conversion to IntermediateRep - IntermediateRep count = lossless_integral_conversion(from.count(), ec); - if (ec) return {}; - // multiply with Factor::num without overflow or underflow - if (detail::const_check(Factor::num != 1)) { - const auto max1 = detail::max_value() / Factor::num; - if (count > max1) { - ec = 1; - return {}; - } - const auto min1 = (std::numeric_limits::min)() / Factor::num; - if (!std::is_unsigned::value && count < min1) { - ec = 1; - return {}; - } - count *= Factor::num; - } - - if (detail::const_check(Factor::den != 1)) count /= Factor::den; - auto tocount = lossless_integral_conversion(count, ec); - return ec ? To() : To(tocount); +template ::value)> +FMT_CONSTEXPR auto safe_float_conversion(const From from, int& ec) -> To { + ec = 0; + static_assert(std::is_floating_point::value, "From must be floating"); + return from; } -/** - * safe duration_cast between floating point durations - */ -template ::value), FMT_ENABLE_IF(std::is_floating_point::value)> -To safe_duration_cast(std::chrono::duration from, int& ec) { - using From = std::chrono::duration; - ec = 0; - if (std::isnan(from.count())) { - // nan in, gives nan out. easy. - return To{std::numeric_limits::quiet_NaN()}; - } - // maybe we should also check if from is denormal, and decide what to do about - // it. +auto safe_duration_cast(std::chrono::duration from, + int& ec) -> To { + using From = std::chrono::duration; + ec = 0; + if (std::isnan(from.count())) { + // nan in, gives nan out. easy. + return To{std::numeric_limits::quiet_NaN()}; + } + // maybe we should also check if from is denormal, and decide what to do about + // it. + + // +-inf should be preserved. + if (std::isinf(from.count())) { + return To{from.count()}; + } + + // the basic idea is that we need to convert from count() in the from type + // to count() in the To type, by multiplying it with this: + struct Factor + : std::ratio_divide {}; + + static_assert(Factor::num > 0, "num must be positive"); + static_assert(Factor::den > 0, "den must be positive"); + + // the conversion is like this: multiply from.count() with Factor::num + // /Factor::den and convert it to To::rep, all this without + // overflow/underflow. let's start by finding a suitable type that can hold + // both To, From and Factor::num + using IntermediateRep = + typename std::common_type::type; + + // force conversion of From::rep -> IntermediateRep to be safe, + // even if it will never happen be narrowing in this context. + IntermediateRep count = + safe_float_conversion(from.count(), ec); + if (ec) { + return {}; + } + + // multiply with Factor::num without overflow or underflow + if (detail::const_check(Factor::num != 1)) { + constexpr auto max1 = detail::max_value() / + static_cast(Factor::num); + if (count > max1) { + ec = 1; + return {}; + } + constexpr auto min1 = std::numeric_limits::lowest() / + static_cast(Factor::num); + if (count < min1) { + ec = 1; + return {}; + } + count *= static_cast(Factor::num); + } + + // this can't go wrong, right? den>0 is checked earlier. + if (detail::const_check(Factor::den != 1)) { + using common_t = typename std::common_type::type; + count /= static_cast(Factor::den); + } + + // convert to the to type, safely + using ToRep = typename To::rep; + + const ToRep tocount = safe_float_conversion(count, ec); + if (ec) { + return {}; + } + return To{tocount}; +} +} // namespace safe_duration_cast +#endif - // +-inf should be preserved. - if (std::isinf(from.count())) { - return To{from.count()}; - } +namespace detail { - // the basic idea is that we need to convert from count() in the from type - // to count() in the To type, by multiplying it with this: - struct Factor : std::ratio_divide {}; - - static_assert(Factor::num > 0, "num must be positive"); - static_assert(Factor::den > 0, "den must be positive"); - - // the conversion is like this: multiply from.count() with Factor::num - // /Factor::den and convert it to To::rep, all this without - // overflow/underflow. let's start by finding a suitable type that can hold - // both To, From and Factor::num - using IntermediateRep = typename std::common_type::type; - - // force conversion of From::rep -> IntermediateRep to be safe, - // even if it will never happen be narrowing in this context. - IntermediateRep count = safe_float_conversion(from.count(), ec); - if (ec) { - return {}; - } +// Check if std::chrono::utc_time is available. +#ifdef FMT_USE_UTC_TIME +// Use the provided definition. +#elif defined(__cpp_lib_chrono) +# define FMT_USE_UTC_TIME (__cpp_lib_chrono >= 201907L) +#else +# define FMT_USE_UTC_TIME 0 +#endif +#if FMT_USE_UTC_TIME +using utc_clock = std::chrono::utc_clock; +#else +struct utc_clock { + template void to_sys(T); +}; +#endif - // multiply with Factor::num without overflow or underflow - if (detail::const_check(Factor::num != 1)) { - constexpr auto max1 = - detail::max_value() / static_cast(Factor::num); - if (count > max1) { - ec = 1; - return {}; - } - constexpr auto min1 = std::numeric_limits::lowest() / - static_cast(Factor::num); - if (count < min1) { - ec = 1; - return {}; - } - count *= static_cast(Factor::num); - } +// Check if std::chrono::local_time is available. +#ifdef FMT_USE_LOCAL_TIME +// Use the provided definition. +#elif defined(__cpp_lib_chrono) +# define FMT_USE_LOCAL_TIME (__cpp_lib_chrono >= 201907L) +#else +# define FMT_USE_LOCAL_TIME 0 +#endif +#if FMT_USE_LOCAL_TIME +using local_t = std::chrono::local_t; +#else +struct local_t {}; +#endif - // this can't go wrong, right? den>0 is checked earlier. - if (detail::const_check(Factor::den != 1)) { - using common_t = typename std::common_type::type; - count /= static_cast(Factor::den); - } +} // namespace detail - // convert to the to type, safely - using ToRep = typename To::rep; +template +using sys_time = std::chrono::time_point; - const ToRep tocount = safe_float_conversion(count, ec); - if (ec) { - return {}; - } - return To{tocount}; -} -} // namespace safe_duration_cast -#endif +template +using utc_time = std::chrono::time_point; + +template +using local_time = std::chrono::time_point; + +namespace detail { // Prevents expansion of a preceding token as a function-style macro. // Usage: f FMT_NOMACRO() #define FMT_NOMACRO -namespace detail { -template -struct null {}; -inline null<> localtime_r FMT_NOMACRO(...) { return null<>(); } -inline null<> localtime_s(...) { return null<>(); } -inline null<> gmtime_r(...) { return null<>(); } -inline null<> gmtime_s(...) { return null<>(); } - -inline const std::locale& get_classic_locale() { - static const auto& locale = std::locale::classic(); - return locale; +template struct null {}; +inline auto localtime_r FMT_NOMACRO(...) -> null<> { return null<>(); } +inline auto localtime_s(...) -> null<> { return null<>(); } +inline auto gmtime_r(...) -> null<> { return null<>(); } +inline auto gmtime_s(...) -> null<> { return null<>(); } + +// It is defined here and not in ostream.h because the latter has expensive +// includes. +template class formatbuf : public StreamBuf { + private: + using char_type = typename StreamBuf::char_type; + using streamsize = decltype(std::declval().sputn(nullptr, 0)); + using int_type = typename StreamBuf::int_type; + using traits_type = typename StreamBuf::traits_type; + + buffer& buffer_; + + public: + explicit formatbuf(buffer& buf) : buffer_(buf) {} + + protected: + // The put area is always empty. This makes the implementation simpler and has + // the advantage that the streambuf and the buffer are always in sync and + // sputc never writes into uninitialized memory. A disadvantage is that each + // call to sputc always results in a (virtual) call to overflow. There is no + // disadvantage here for sputn since this always results in a call to xsputn. + + auto overflow(int_type ch) -> int_type override { + if (!traits_type::eq_int_type(ch, traits_type::eof())) + buffer_.push_back(static_cast(ch)); + return ch; + } + + auto xsputn(const char_type* s, streamsize count) -> streamsize override { + buffer_.append(s, s + count); + return count; + } +}; + +inline auto get_classic_locale() -> const std::locale& { + static const auto& locale = std::locale::classic(); + return locale; } -template -struct codecvt_result { - static constexpr const size_t max_size = 32; - CodeUnit buf[max_size]; - CodeUnit* end; +template struct codecvt_result { + static constexpr const size_t max_size = 32; + CodeUnit buf[max_size]; + CodeUnit* end; }; -template -constexpr const size_t codecvt_result::max_size; template -void write_codecvt(codecvt_result& out, string_view in_buf, const std::locale& loc) { -#if FMT_CLANG_VERSION - #pragma clang diagnostic push - #pragma clang diagnostic ignored "-Wdeprecated" - auto& f = std::use_facet>(loc); - #pragma clang diagnostic pop -#else - auto& f = std::use_facet>(loc); -#endif - auto mb = std::mbstate_t(); - const char* from_next = nullptr; - auto result = f.in(mb, in_buf.begin(), in_buf.end(), from_next, std::begin(out.buf), - std::end(out.buf), out.end); - if (result != std::codecvt_base::ok) FMT_THROW(format_error("failed to format time")); +void write_codecvt(codecvt_result& out, string_view in, + const std::locale& loc) { + FMT_PRAGMA_CLANG(diagnostic push) + FMT_PRAGMA_CLANG(diagnostic ignored "-Wdeprecated") + auto& f = std::use_facet>(loc); + FMT_PRAGMA_CLANG(diagnostic pop) + auto mb = std::mbstate_t(); + const char* from_next = nullptr; + auto result = f.in(mb, in.begin(), in.end(), from_next, std::begin(out.buf), + std::end(out.buf), out.end); + if (result != std::codecvt_base::ok) + FMT_THROW(format_error("failed to format time")); } template -auto write_encoded_tm_str(OutputIt out, string_view in, const std::locale& loc) -> OutputIt { - if (detail::is_utf8() && loc != get_classic_locale()) { - // char16_t and char32_t codecvts are broken in MSVC (linkage errors) and - // gcc-4. -#if FMT_MSC_VERSION != 0 || (defined(__GLIBCXX__) && !defined(_GLIBCXX_USE_DUAL_ABI)) - // The _GLIBCXX_USE_DUAL_ABI macro is always defined in libstdc++ from gcc-5 - // and newer. - using code_unit = wchar_t; +auto write_encoded_tm_str(OutputIt out, string_view in, const std::locale& loc) + -> OutputIt { + if (const_check(detail::use_utf8) && loc != get_classic_locale()) { + // char16_t and char32_t codecvts are broken in MSVC (linkage errors) and + // gcc-4. +#if FMT_MSC_VERSION != 0 || \ + (defined(__GLIBCXX__) && \ + (!defined(_GLIBCXX_USE_DUAL_ABI) || _GLIBCXX_USE_DUAL_ABI == 0)) + // The _GLIBCXX_USE_DUAL_ABI macro is always defined in libstdc++ from gcc-5 + // and newer. + using code_unit = wchar_t; #else - using code_unit = char32_t; + using code_unit = char32_t; #endif - using unit_t = codecvt_result; - unit_t unit; - write_codecvt(unit, in, loc); - // In UTF-8 is used one to four one-byte code units. - auto&& buf = basic_memory_buffer(); - for (code_unit* p = unit.buf; p != unit.end; ++p) { - uint32_t c = static_cast(*p); - if (sizeof(code_unit) == 2 && c >= 0xd800 && c <= 0xdfff) { - // surrogate pair - ++p; - if (p == unit.end || (c & 0xfc00) != 0xd800 || (*p & 0xfc00) != 0xdc00) { - FMT_THROW(format_error("failed to format time")); - } - c = (c << 10) + static_cast(*p) - 0x35fdc00; - } - if (c < 0x80) { - buf.push_back(static_cast(c)); - } else if (c < 0x800) { - buf.push_back(static_cast(0xc0 | (c >> 6))); - buf.push_back(static_cast(0x80 | (c & 0x3f))); - } else if ((c >= 0x800 && c <= 0xd7ff) || (c >= 0xe000 && c <= 0xffff)) { - buf.push_back(static_cast(0xe0 | (c >> 12))); - buf.push_back(static_cast(0x80 | ((c & 0xfff) >> 6))); - buf.push_back(static_cast(0x80 | (c & 0x3f))); - } else if (c >= 0x10000 && c <= 0x10ffff) { - buf.push_back(static_cast(0xf0 | (c >> 18))); - buf.push_back(static_cast(0x80 | ((c & 0x3ffff) >> 12))); - buf.push_back(static_cast(0x80 | ((c & 0xfff) >> 6))); - buf.push_back(static_cast(0x80 | (c & 0x3f))); - } else { - FMT_THROW(format_error("failed to format time")); - } - } - return copy_str(buf.data(), buf.data() + buf.size(), out); - } - return copy_str(in.data(), in.data() + in.size(), out); + using unit_t = codecvt_result; + unit_t unit; + write_codecvt(unit, in, loc); + // In UTF-8 is used one to four one-byte code units. + auto u = + to_utf8>(); + if (!u.convert({unit.buf, to_unsigned(unit.end - unit.buf)})) + FMT_THROW(format_error("failed to format time")); + return copy(u.c_str(), u.c_str() + u.size(), out); + } + return copy(in.data(), in.data() + in.size(), out); } -template ::value)> -auto write_tm_str(OutputIt out, string_view sv, const std::locale& loc) -> OutputIt { - codecvt_result unit; - write_codecvt(unit, sv, loc); - return copy_str(unit.buf, unit.end, out); +template ::value)> +auto write_tm_str(OutputIt out, string_view sv, const std::locale& loc) + -> OutputIt { + codecvt_result unit; + write_codecvt(unit, sv, loc); + return copy(unit.buf, unit.end, out); } -template ::value)> -auto write_tm_str(OutputIt out, string_view sv, const std::locale& loc) -> OutputIt { - return write_encoded_tm_str(out, sv, loc); +template ::value)> +auto write_tm_str(OutputIt out, string_view sv, const std::locale& loc) + -> OutputIt { + return write_encoded_tm_str(out, sv, loc); } template -inline void do_write( - buffer& buf, const std::tm& time, const std::locale& loc, char format, char modifier) { - auto&& format_buf = formatbuf>(buf); - auto&& os = std::basic_ostream(&format_buf); - os.imbue(loc); - using iterator = std::ostreambuf_iterator; - const auto& facet = std::use_facet>(loc); - auto end = facet.put(os, os, Char(' '), &time, format, modifier); - if (end.failed()) FMT_THROW(format_error("failed to format time")); +inline void do_write(buffer& buf, const std::tm& time, + const std::locale& loc, char format, char modifier) { + auto&& format_buf = formatbuf>(buf); + auto&& os = std::basic_ostream(&format_buf); + os.imbue(loc); + const auto& facet = std::use_facet>(loc); + auto end = facet.put(os, os, Char(' '), &time, format, modifier); + if (end.failed()) FMT_THROW(format_error("failed to format time")); } -template ::value)> -auto write( - OutputIt out, const std::tm& time, const std::locale& loc, char format, char modifier = 0) - -> OutputIt { - auto&& buf = get_buffer(out); - do_write(buf, time, loc, format, modifier); - return buf.out(); +template ::value)> +auto write(OutputIt out, const std::tm& time, const std::locale& loc, + char format, char modifier = 0) -> OutputIt { + auto&& buf = get_buffer(out); + do_write(buf, time, loc, format, modifier); + return get_iterator(buf, out); } -template ::value)> -auto write( - OutputIt out, const std::tm& time, const std::locale& loc, char format, char modifier = 0) - -> OutputIt { - auto&& buf = basic_memory_buffer(); - do_write(buf, time, loc, format, modifier); - return write_encoded_tm_str(out, string_view(buf.data(), buf.size()), loc); +template ::value)> +auto write(OutputIt out, const std::tm& time, const std::locale& loc, + char format, char modifier = 0) -> OutputIt { + auto&& buf = basic_memory_buffer(); + do_write(buf, time, loc, format, modifier); + return write_encoded_tm_str(out, string_view(buf.data(), buf.size()), loc); +} + +template +using is_similar_arithmetic_type = + bool_constant<(std::is_integral::value && std::is_integral::value) || + (std::is_floating_point::value && + std::is_floating_point::value)>; + +FMT_NORETURN inline void throw_duration_error() { + FMT_THROW(format_error("cannot format duration")); +} + +// Cast one integral duration to another with an overflow check. +template ::value&& + std::is_integral::value)> +auto duration_cast(std::chrono::duration from) -> To { +#if !FMT_SAFE_DURATION_CAST + return std::chrono::duration_cast(from); +#else + // The conversion factor: to.count() == factor * from.count(). + using factor = std::ratio_divide; + + using common_rep = typename std::common_type::type; + + int ec = 0; + auto count = safe_duration_cast::lossless_integral_conversion( + from.count(), ec); + if (ec) throw_duration_error(); + + // Multiply from.count() by factor and check for overflow. + if (const_check(factor::num != 1)) { + if (count > max_value() / factor::num) throw_duration_error(); + const auto min = (std::numeric_limits::min)() / factor::num; + if (const_check(!std::is_unsigned::value) && count < min) + throw_duration_error(); + count *= factor::num; + } + if (const_check(factor::den != 1)) count /= factor::den; + auto to = + To(safe_duration_cast::lossless_integral_conversion( + count, ec)); + if (ec) throw_duration_error(); + return to; +#endif +} + +template ::value&& + std::is_floating_point::value)> +auto duration_cast(std::chrono::duration from) -> To { +#if FMT_SAFE_DURATION_CAST + // Throwing version of safe_duration_cast is only available for + // integer to integer or float to float casts. + int ec; + To to = safe_duration_cast::safe_duration_cast(from, ec); + if (ec) throw_duration_error(); + return to; +#else + // Standard duration cast, may overflow. + return std::chrono::duration_cast(from); +#endif +} + +template ::value)> +auto duration_cast(std::chrono::duration from) -> To { + // Mixed integer <-> float cast is not supported by safe_duration_cast. + return std::chrono::duration_cast(from); +} + +template +auto to_time_t(sys_time time_point) -> std::time_t { + // Cannot use std::chrono::system_clock::to_time_t since this would first + // require a cast to std::chrono::system_clock::time_point, which could + // overflow. + return detail::duration_cast>( + time_point.time_since_epoch()) + .count(); } +namespace tz { + +// DEPRECATED! +struct time_zone { + template + auto to_sys(LocalTime) -> sys_time { + return {}; + } +}; +template auto current_zone(T...) -> time_zone* { + return nullptr; +} + +template void _tzset(T...) {} +} // namespace tz + +// DEPRECATED! +inline void tzset_once() { + static bool init = []() { + using namespace tz; + _tzset(); + return false; + }(); + ignore_unused(init); +} } // namespace detail -FMT_MODULE_EXPORT_BEGIN +FMT_BEGIN_EXPORT /** - Converts given time since epoch as ``std::time_t`` value into calendar time, - expressed in local time. Unlike ``std::localtime``, this function is - thread-safe on most platforms. + * Converts given time since epoch as `std::time_t` value into calendar time, + * expressed in local time. Unlike `std::localtime`, this function is + * thread-safe on most platforms. */ -inline std::tm localtime(std::time_t time) { - struct dispatcher { - std::time_t time_; - std::tm tm_; +FMT_DEPRECATED inline auto localtime(std::time_t time) -> std::tm { + struct dispatcher { + std::time_t time_; + std::tm tm_; - dispatcher(std::time_t t) - : time_(t) {} + inline dispatcher(std::time_t t) : time_(t) {} - bool run() { - using namespace fmt::detail; - return handle(localtime_r(&time_, &tm_)); - } + inline auto run() -> bool { + using namespace fmt::detail; + return handle(localtime_r(&time_, &tm_)); + } - bool handle(std::tm* tm) { return tm != nullptr; } + inline auto handle(std::tm* tm) -> bool { return tm != nullptr; } - bool handle(detail::null<>) { - using namespace fmt::detail; - return fallback(localtime_s(&tm_, &time_)); - } + inline auto handle(detail::null<>) -> bool { + using namespace fmt::detail; + return fallback(localtime_s(&tm_, &time_)); + } - bool fallback(int res) { return res == 0; } + inline auto fallback(int res) -> bool { return res == 0; } #if !FMT_MSC_VERSION - bool fallback(detail::null<>) { - using namespace fmt::detail; - std::tm* tm = std::localtime(&time_); - if (tm) tm_ = *tm; - return tm != nullptr; - } + inline auto fallback(detail::null<>) -> bool { + using namespace fmt::detail; + std::tm* tm = std::localtime(&time_); + if (tm) tm_ = *tm; + return tm != nullptr; + } #endif - }; - dispatcher lt(time); - // Too big time values may be unsupported. - if (!lt.run()) FMT_THROW(format_error("time_t value out of range")); - return lt.tm_; + }; + dispatcher lt(time); + // Too big time values may be unsupported. + if (!lt.run()) FMT_THROW(format_error("time_t value out of range")); + return lt.tm_; } -inline std::tm localtime(std::chrono::time_point time_point) { - return localtime(std::chrono::system_clock::to_time_t(time_point)); +#if FMT_USE_LOCAL_TIME +template +FMT_DEPRECATED auto localtime(std::chrono::local_time time) + -> std::tm { + using namespace std::chrono; + using namespace detail::tz; + return localtime(detail::to_time_t(current_zone()->to_sys(time))); } +#endif /** - Converts given time since epoch as ``std::time_t`` value into calendar time, - expressed in Coordinated Universal Time (UTC). Unlike ``std::gmtime``, this - function is thread-safe on most platforms. + * Converts given time since epoch as `std::time_t` value into calendar time, + * expressed in Coordinated Universal Time (UTC). Unlike `std::gmtime`, this + * function is thread-safe on most platforms. */ -inline std::tm gmtime(std::time_t time) { - struct dispatcher { - std::time_t time_; - std::tm tm_; +inline auto gmtime(std::time_t time) -> std::tm { + struct dispatcher { + std::time_t time_; + std::tm tm_; - dispatcher(std::time_t t) - : time_(t) {} + inline dispatcher(std::time_t t) : time_(t) {} - bool run() { - using namespace fmt::detail; - return handle(gmtime_r(&time_, &tm_)); - } + inline auto run() -> bool { + using namespace fmt::detail; + return handle(gmtime_r(&time_, &tm_)); + } - bool handle(std::tm* tm) { return tm != nullptr; } + inline auto handle(std::tm* tm) -> bool { return tm != nullptr; } - bool handle(detail::null<>) { - using namespace fmt::detail; - return fallback(gmtime_s(&tm_, &time_)); - } + inline auto handle(detail::null<>) -> bool { + using namespace fmt::detail; + return fallback(gmtime_s(&tm_, &time_)); + } - bool fallback(int res) { return res == 0; } + inline auto fallback(int res) -> bool { return res == 0; } #if !FMT_MSC_VERSION - bool fallback(detail::null<>) { - std::tm* tm = std::gmtime(&time_); - if (tm) tm_ = *tm; - return tm != nullptr; - } + inline auto fallback(detail::null<>) -> bool { + std::tm* tm = std::gmtime(&time_); + if (tm) tm_ = *tm; + return tm != nullptr; + } #endif - }; - dispatcher gt(time); - // Too big time values may be unsupported. - if (!gt.run()) FMT_THROW(format_error("time_t value out of range")); - return gt.tm_; + }; + auto gt = dispatcher(time); + // Too big time values may be unsupported. + if (!gt.run()) FMT_THROW(format_error("time_t value out of range")); + return gt.tm_; } -inline std::tm gmtime(std::chrono::time_point time_point) { - return gmtime(std::chrono::system_clock::to_time_t(time_point)); +template +inline auto gmtime(sys_time time_point) -> std::tm { + return gmtime(detail::to_time_t(time_point)); } -FMT_BEGIN_DETAIL_NAMESPACE +namespace detail { // Writes two-digit numbers a, b and c separated by sep to buf. // The method by Pavel Novikov based on // https://johnnylee-sde.github.io/Fast-unsigned-integer-to-time-string/. -inline void write_digit2_separated(char* buf, unsigned a, unsigned b, unsigned c, char sep) { - unsigned long long digits = a | (b << 24) | (static_cast(c) << 48); - // Convert each value to BCD. - // We have x = a * 10 + b and we want to convert it to BCD y = a * 16 + b. - // The difference is - // y - x = a * 6 - // a can be found from x: - // a = floor(x / 10) - // then - // y = x + a * 6 = x + floor(x / 10) * 6 - // floor(x / 10) is (x * 205) >> 11 (needs 16 bits). - digits += (((digits * 205) >> 11) & 0x000f00000f00000f) * 6; - // Put low nibbles to high bytes and high nibbles to low bytes. - digits = ((digits & 0x00f00000f00000f0) >> 4) | ((digits & 0x000f00000f00000f) << 8); - auto usep = static_cast(sep); - // Add ASCII '0' to each digit byte and insert separators. - digits |= 0x3030003030003030 | (usep << 16) | (usep << 40); - - constexpr const size_t len = 8; - if (const_check(is_big_endian())) { - char tmp[len]; - std::memcpy(tmp, &digits, len); - std::reverse_copy(tmp, tmp + len, buf); - } else { - std::memcpy(buf, &digits, len); - } +inline void write_digit2_separated(char* buf, unsigned a, unsigned b, + unsigned c, char sep) { + unsigned long long digits = + a | (b << 24) | (static_cast(c) << 48); + // Convert each value to BCD. + // We have x = a * 10 + b and we want to convert it to BCD y = a * 16 + b. + // The difference is + // y - x = a * 6 + // a can be found from x: + // a = floor(x / 10) + // then + // y = x + a * 6 = x + floor(x / 10) * 6 + // floor(x / 10) is (x * 205) >> 11 (needs 16 bits). + digits += (((digits * 205) >> 11) & 0x000f00000f00000f) * 6; + // Put low nibbles to high bytes and high nibbles to low bytes. + digits = ((digits & 0x00f00000f00000f0) >> 4) | + ((digits & 0x000f00000f00000f) << 8); + auto usep = static_cast(sep); + // Add ASCII '0' to each digit byte and insert separators. + digits |= 0x3030003030003030 | (usep << 16) | (usep << 40); + + constexpr const size_t len = 8; + if (const_check(is_big_endian())) { + char tmp[len]; + std::memcpy(tmp, &digits, len); + std::reverse_copy(tmp, tmp + len, buf); + } else { + std::memcpy(buf, &digits, len); + } } template -FMT_CONSTEXPR inline const char* get_units() { - if (std::is_same::value) return "as"; - if (std::is_same::value) return "fs"; - if (std::is_same::value) return "ps"; - if (std::is_same::value) return "ns"; - if (std::is_same::value) return "µs"; - if (std::is_same::value) return "ms"; - if (std::is_same::value) return "cs"; - if (std::is_same::value) return "ds"; - if (std::is_same>::value) return "s"; - if (std::is_same::value) return "das"; - if (std::is_same::value) return "hs"; - if (std::is_same::value) return "ks"; - if (std::is_same::value) return "Ms"; - if (std::is_same::value) return "Gs"; - if (std::is_same::value) return "Ts"; - if (std::is_same::value) return "Ps"; - if (std::is_same::value) return "Es"; - if (std::is_same>::value) return "m"; - if (std::is_same>::value) return "h"; - return nullptr; +FMT_CONSTEXPR inline auto get_units() -> const char* { + if (std::is_same::value) return "as"; + if (std::is_same::value) return "fs"; + if (std::is_same::value) return "ps"; + if (std::is_same::value) return "ns"; + if (std::is_same::value) + return detail::use_utf8 ? "µs" : "us"; + if (std::is_same::value) return "ms"; + if (std::is_same::value) return "cs"; + if (std::is_same::value) return "ds"; + if (std::is_same>::value) return "s"; + if (std::is_same::value) return "das"; + if (std::is_same::value) return "hs"; + if (std::is_same::value) return "ks"; + if (std::is_same::value) return "Ms"; + if (std::is_same::value) return "Gs"; + if (std::is_same::value) return "Ts"; + if (std::is_same::value) return "Ps"; + if (std::is_same::value) return "Es"; + if (std::is_same>::value) return "min"; + if (std::is_same>::value) return "h"; + if (std::is_same>::value) return "d"; + return nullptr; } enum class numeric_system { - standard, - // Alternative numeric system, e.g. 十二 instead of 12 in ja_JP locale. - alternative + standard, + // Alternative numeric system, e.g. 十二 instead of 12 in ja_JP locale. + alternative +}; + +// Glibc extensions for formatting numeric values. +enum class pad_type { + // Pad a numeric result string with zeros (the default). + zero, + // Do not pad a numeric result string. + none, + // Pad a numeric result string with spaces. + space, }; +template +auto write_padding(OutputIt out, pad_type pad, int width) -> OutputIt { + if (pad == pad_type::none) return out; + return detail::fill_n(out, width, pad == pad_type::space ? ' ' : '0'); +} + +template +auto write_padding(OutputIt out, pad_type pad) -> OutputIt { + if (pad != pad_type::none) *out++ = pad == pad_type::space ? ' ' : '0'; + return out; +} + // Parses a put_time-like format string and invokes handler actions. template -FMT_CONSTEXPR const Char* parse_chrono_format(const Char* begin, - const Char* end, - Handler&& handler) { - auto ptr = begin; - while (ptr != end) { - auto c = *ptr; - if (c == '}') break; - if (c != '%') { - ++ptr; - continue; - } - if (begin != ptr) handler.on_text(begin, ptr); - ++ptr; // consume '%' - if (ptr == end) FMT_THROW(format_error("invalid format")); - c = *ptr++; - switch (c) { - case '%': - handler.on_text(ptr - 1, ptr); - break; - case 'n': { - const Char newline[] = {'\n'}; - handler.on_text(newline, newline + 1); - break; - } - case 't': { - const Char tab[] = {'\t'}; - handler.on_text(tab, tab + 1); - break; - } - // Year: - case 'Y': - handler.on_year(numeric_system::standard); - break; - case 'y': - handler.on_short_year(numeric_system::standard); - break; - case 'C': - handler.on_century(numeric_system::standard); - break; - case 'G': - handler.on_iso_week_based_year(); - break; - case 'g': - handler.on_iso_week_based_short_year(); - break; - // Day of the week: - case 'a': - handler.on_abbr_weekday(); - break; - case 'A': - handler.on_full_weekday(); - break; - case 'w': - handler.on_dec0_weekday(numeric_system::standard); - break; - case 'u': - handler.on_dec1_weekday(numeric_system::standard); - break; - // Month: - case 'b': - case 'h': - handler.on_abbr_month(); - break; - case 'B': - handler.on_full_month(); - break; - case 'm': - handler.on_dec_month(numeric_system::standard); - break; - // Day of the year/month: - case 'U': - handler.on_dec0_week_of_year(numeric_system::standard); - break; - case 'W': - handler.on_dec1_week_of_year(numeric_system::standard); - break; - case 'V': - handler.on_iso_week_of_year(numeric_system::standard); - break; - case 'j': - handler.on_day_of_year(); - break; - case 'd': - handler.on_day_of_month(numeric_system::standard); - break; - case 'e': - handler.on_day_of_month_space(numeric_system::standard); - break; - // Hour, minute, second: - case 'H': - handler.on_24_hour(numeric_system::standard); - break; - case 'I': - handler.on_12_hour(numeric_system::standard); - break; - case 'M': - handler.on_minute(numeric_system::standard); - break; - case 'S': - handler.on_second(numeric_system::standard); - break; - // Other: - case 'c': - handler.on_datetime(numeric_system::standard); - break; - case 'x': - handler.on_loc_date(numeric_system::standard); - break; - case 'X': - handler.on_loc_time(numeric_system::standard); - break; - case 'D': - handler.on_us_date(); - break; - case 'F': - handler.on_iso_date(); - break; - case 'r': - handler.on_12_hour_time(); - break; - case 'R': - handler.on_24_hour_time(); - break; - case 'T': - handler.on_iso_time(); - break; - case 'p': - handler.on_am_pm(); - break; - case 'Q': - handler.on_duration_value(); - break; - case 'q': - handler.on_duration_unit(); - break; - case 'z': - handler.on_utc_offset(); - break; - case 'Z': - handler.on_tz_name(); - break; - // Alternative representation: - case 'E': { - if (ptr == end) FMT_THROW(format_error("invalid format")); - c = *ptr++; - switch (c) { - case 'Y': - handler.on_year(numeric_system::alternative); - break; - case 'y': - handler.on_offset_year(); - break; - case 'C': - handler.on_century(numeric_system::alternative); - break; - case 'c': - handler.on_datetime(numeric_system::alternative); - break; - case 'x': - handler.on_loc_date(numeric_system::alternative); - break; - case 'X': - handler.on_loc_time(numeric_system::alternative); - break; - default: - FMT_THROW(format_error("invalid format")); - } - break; - } - case 'O': - if (ptr == end) FMT_THROW(format_error("invalid format")); - c = *ptr++; - switch (c) { - case 'y': - handler.on_short_year(numeric_system::alternative); - break; - case 'm': - handler.on_dec_month(numeric_system::alternative); - break; - case 'U': - handler.on_dec0_week_of_year(numeric_system::alternative); - break; - case 'W': - handler.on_dec1_week_of_year(numeric_system::alternative); - break; - case 'V': - handler.on_iso_week_of_year(numeric_system::alternative); - break; - case 'd': - handler.on_day_of_month(numeric_system::alternative); - break; - case 'e': - handler.on_day_of_month_space(numeric_system::alternative); - break; - case 'w': - handler.on_dec0_weekday(numeric_system::alternative); - break; - case 'u': - handler.on_dec1_weekday(numeric_system::alternative); - break; - case 'H': - handler.on_24_hour(numeric_system::alternative); - break; - case 'I': - handler.on_12_hour(numeric_system::alternative); - break; - case 'M': - handler.on_minute(numeric_system::alternative); - break; - case 'S': - handler.on_second(numeric_system::alternative); - break; - default: - FMT_THROW(format_error("invalid format")); - } - break; - default: - FMT_THROW(format_error("invalid format")); - } - begin = ptr; +FMT_CONSTEXPR auto parse_chrono_format(const Char* begin, const Char* end, + Handler&& handler) -> const Char* { + if (begin == end || *begin == '}') return begin; + if (*begin != '%') FMT_THROW(format_error("invalid format")); + auto ptr = begin; + while (ptr != end) { + pad_type pad = pad_type::zero; + auto c = *ptr; + if (c == '}') break; + if (c != '%') { + ++ptr; + continue; } if (begin != ptr) handler.on_text(begin, ptr); - return ptr; + ++ptr; // consume '%' + if (ptr == end) FMT_THROW(format_error("invalid format")); + c = *ptr; + switch (c) { + case '_': + pad = pad_type::space; + ++ptr; + break; + case '-': + pad = pad_type::none; + ++ptr; + break; + } + if (ptr == end) FMT_THROW(format_error("invalid format")); + c = *ptr++; + switch (c) { + case '%': handler.on_text(ptr - 1, ptr); break; + case 'n': { + const Char newline[] = {'\n'}; + handler.on_text(newline, newline + 1); + break; + } + case 't': { + const Char tab[] = {'\t'}; + handler.on_text(tab, tab + 1); + break; + } + // Year: + case 'Y': handler.on_year(numeric_system::standard, pad); break; + case 'y': handler.on_short_year(numeric_system::standard); break; + case 'C': handler.on_century(numeric_system::standard); break; + case 'G': handler.on_iso_week_based_year(); break; + case 'g': handler.on_iso_week_based_short_year(); break; + // Day of the week: + case 'a': handler.on_abbr_weekday(); break; + case 'A': handler.on_full_weekday(); break; + case 'w': handler.on_dec0_weekday(numeric_system::standard); break; + case 'u': handler.on_dec1_weekday(numeric_system::standard); break; + // Month: + case 'b': + case 'h': handler.on_abbr_month(); break; + case 'B': handler.on_full_month(); break; + case 'm': handler.on_dec_month(numeric_system::standard, pad); break; + // Day of the year/month: + case 'U': + handler.on_dec0_week_of_year(numeric_system::standard, pad); + break; + case 'W': + handler.on_dec1_week_of_year(numeric_system::standard, pad); + break; + case 'V': handler.on_iso_week_of_year(numeric_system::standard, pad); break; + case 'j': handler.on_day_of_year(pad); break; + case 'd': handler.on_day_of_month(numeric_system::standard, pad); break; + case 'e': + handler.on_day_of_month(numeric_system::standard, pad_type::space); + break; + // Hour, minute, second: + case 'H': handler.on_24_hour(numeric_system::standard, pad); break; + case 'I': handler.on_12_hour(numeric_system::standard, pad); break; + case 'M': handler.on_minute(numeric_system::standard, pad); break; + case 'S': handler.on_second(numeric_system::standard, pad); break; + // Other: + case 'c': handler.on_datetime(numeric_system::standard); break; + case 'x': handler.on_loc_date(numeric_system::standard); break; + case 'X': handler.on_loc_time(numeric_system::standard); break; + case 'D': handler.on_us_date(); break; + case 'F': handler.on_iso_date(); break; + case 'r': handler.on_12_hour_time(); break; + case 'R': handler.on_24_hour_time(); break; + case 'T': handler.on_iso_time(); break; + case 'p': handler.on_am_pm(); break; + case 'Q': handler.on_duration_value(); break; + case 'q': handler.on_duration_unit(); break; + case 'z': handler.on_utc_offset(numeric_system::standard); break; + case 'Z': handler.on_tz_name(); break; + // Alternative representation: + case 'E': { + if (ptr == end) FMT_THROW(format_error("invalid format")); + c = *ptr++; + switch (c) { + case 'Y': handler.on_year(numeric_system::alternative, pad); break; + case 'y': handler.on_offset_year(); break; + case 'C': handler.on_century(numeric_system::alternative); break; + case 'c': handler.on_datetime(numeric_system::alternative); break; + case 'x': handler.on_loc_date(numeric_system::alternative); break; + case 'X': handler.on_loc_time(numeric_system::alternative); break; + case 'z': handler.on_utc_offset(numeric_system::alternative); break; + default: FMT_THROW(format_error("invalid format")); + } + break; + } + case 'O': + if (ptr == end) FMT_THROW(format_error("invalid format")); + c = *ptr++; + switch (c) { + case 'y': handler.on_short_year(numeric_system::alternative); break; + case 'm': handler.on_dec_month(numeric_system::alternative, pad); break; + case 'U': + handler.on_dec0_week_of_year(numeric_system::alternative, pad); + break; + case 'W': + handler.on_dec1_week_of_year(numeric_system::alternative, pad); + break; + case 'V': + handler.on_iso_week_of_year(numeric_system::alternative, pad); + break; + case 'd': + handler.on_day_of_month(numeric_system::alternative, pad); + break; + case 'e': + handler.on_day_of_month(numeric_system::alternative, pad_type::space); + break; + case 'w': handler.on_dec0_weekday(numeric_system::alternative); break; + case 'u': handler.on_dec1_weekday(numeric_system::alternative); break; + case 'H': handler.on_24_hour(numeric_system::alternative, pad); break; + case 'I': handler.on_12_hour(numeric_system::alternative, pad); break; + case 'M': handler.on_minute(numeric_system::alternative, pad); break; + case 'S': handler.on_second(numeric_system::alternative, pad); break; + case 'z': handler.on_utc_offset(numeric_system::alternative); break; + default: FMT_THROW(format_error("invalid format")); + } + break; + default: FMT_THROW(format_error("invalid format")); + } + begin = ptr; + } + if (begin != ptr) handler.on_text(begin, ptr); + return ptr; } -template -struct null_chrono_spec_handler { - FMT_CONSTEXPR void unsupported() { static_cast(this)->unsupported(); } - FMT_CONSTEXPR void on_year(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_short_year(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_offset_year() { unsupported(); } - FMT_CONSTEXPR void on_century(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_iso_week_based_year() { unsupported(); } - FMT_CONSTEXPR void on_iso_week_based_short_year() { unsupported(); } - FMT_CONSTEXPR void on_abbr_weekday() { unsupported(); } - FMT_CONSTEXPR void on_full_weekday() { unsupported(); } - FMT_CONSTEXPR void on_dec0_weekday(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_dec1_weekday(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_abbr_month() { unsupported(); } - FMT_CONSTEXPR void on_full_month() { unsupported(); } - FMT_CONSTEXPR void on_dec_month(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_dec0_week_of_year(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_dec1_week_of_year(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_iso_week_of_year(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_day_of_year() { unsupported(); } - FMT_CONSTEXPR void on_day_of_month(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_day_of_month_space(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_24_hour(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_12_hour(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_minute(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_second(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_datetime(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_loc_date(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_loc_time(numeric_system) { unsupported(); } - FMT_CONSTEXPR void on_us_date() { unsupported(); } - FMT_CONSTEXPR void on_iso_date() { unsupported(); } - FMT_CONSTEXPR void on_12_hour_time() { unsupported(); } - FMT_CONSTEXPR void on_24_hour_time() { unsupported(); } - FMT_CONSTEXPR void on_iso_time() { unsupported(); } - FMT_CONSTEXPR void on_am_pm() { unsupported(); } - FMT_CONSTEXPR void on_duration_value() { unsupported(); } - FMT_CONSTEXPR void on_duration_unit() { unsupported(); } - FMT_CONSTEXPR void on_utc_offset() { unsupported(); } - FMT_CONSTEXPR void on_tz_name() { unsupported(); } +template struct null_chrono_spec_handler { + FMT_CONSTEXPR void unsupported() { + static_cast(this)->unsupported(); + } + FMT_CONSTEXPR void on_year(numeric_system, pad_type) { unsupported(); } + FMT_CONSTEXPR void on_short_year(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_offset_year() { unsupported(); } + FMT_CONSTEXPR void on_century(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_iso_week_based_year() { unsupported(); } + FMT_CONSTEXPR void on_iso_week_based_short_year() { unsupported(); } + FMT_CONSTEXPR void on_abbr_weekday() { unsupported(); } + FMT_CONSTEXPR void on_full_weekday() { unsupported(); } + FMT_CONSTEXPR void on_dec0_weekday(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_dec1_weekday(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_abbr_month() { unsupported(); } + FMT_CONSTEXPR void on_full_month() { unsupported(); } + FMT_CONSTEXPR void on_dec_month(numeric_system, pad_type) { unsupported(); } + FMT_CONSTEXPR void on_dec0_week_of_year(numeric_system, pad_type) { + unsupported(); + } + FMT_CONSTEXPR void on_dec1_week_of_year(numeric_system, pad_type) { + unsupported(); + } + FMT_CONSTEXPR void on_iso_week_of_year(numeric_system, pad_type) { + unsupported(); + } + FMT_CONSTEXPR void on_day_of_year(pad_type) { unsupported(); } + FMT_CONSTEXPR void on_day_of_month(numeric_system, pad_type) { + unsupported(); + } + FMT_CONSTEXPR void on_24_hour(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_12_hour(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_minute(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_second(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_datetime(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_loc_date(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_loc_time(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_us_date() { unsupported(); } + FMT_CONSTEXPR void on_iso_date() { unsupported(); } + FMT_CONSTEXPR void on_12_hour_time() { unsupported(); } + FMT_CONSTEXPR void on_24_hour_time() { unsupported(); } + FMT_CONSTEXPR void on_iso_time() { unsupported(); } + FMT_CONSTEXPR void on_am_pm() { unsupported(); } + FMT_CONSTEXPR void on_duration_value() { unsupported(); } + FMT_CONSTEXPR void on_duration_unit() { unsupported(); } + FMT_CONSTEXPR void on_utc_offset(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_tz_name() { unsupported(); } }; -struct tm_format_checker : null_chrono_spec_handler { - FMT_NORETURN void unsupported() { FMT_THROW(format_error("no format")); } - - template - FMT_CONSTEXPR void on_text(const Char*, const Char*) {} - FMT_CONSTEXPR void on_year(numeric_system) {} - FMT_CONSTEXPR void on_short_year(numeric_system) {} - FMT_CONSTEXPR void on_offset_year() {} - FMT_CONSTEXPR void on_century(numeric_system) {} - FMT_CONSTEXPR void on_iso_week_based_year() {} - FMT_CONSTEXPR void on_iso_week_based_short_year() {} - FMT_CONSTEXPR void on_abbr_weekday() {} - FMT_CONSTEXPR void on_full_weekday() {} - FMT_CONSTEXPR void on_dec0_weekday(numeric_system) {} - FMT_CONSTEXPR void on_dec1_weekday(numeric_system) {} - FMT_CONSTEXPR void on_abbr_month() {} - FMT_CONSTEXPR void on_full_month() {} - FMT_CONSTEXPR void on_dec_month(numeric_system) {} - FMT_CONSTEXPR void on_dec0_week_of_year(numeric_system) {} - FMT_CONSTEXPR void on_dec1_week_of_year(numeric_system) {} - FMT_CONSTEXPR void on_iso_week_of_year(numeric_system) {} - FMT_CONSTEXPR void on_day_of_year() {} - FMT_CONSTEXPR void on_day_of_month(numeric_system) {} - FMT_CONSTEXPR void on_day_of_month_space(numeric_system) {} - FMT_CONSTEXPR void on_24_hour(numeric_system) {} - FMT_CONSTEXPR void on_12_hour(numeric_system) {} - FMT_CONSTEXPR void on_minute(numeric_system) {} - FMT_CONSTEXPR void on_second(numeric_system) {} - FMT_CONSTEXPR void on_datetime(numeric_system) {} - FMT_CONSTEXPR void on_loc_date(numeric_system) {} - FMT_CONSTEXPR void on_loc_time(numeric_system) {} - FMT_CONSTEXPR void on_us_date() {} - FMT_CONSTEXPR void on_iso_date() {} - FMT_CONSTEXPR void on_12_hour_time() {} - FMT_CONSTEXPR void on_24_hour_time() {} - FMT_CONSTEXPR void on_iso_time() {} - FMT_CONSTEXPR void on_am_pm() {} - FMT_CONSTEXPR void on_utc_offset() {} - FMT_CONSTEXPR void on_tz_name() {} +class tm_format_checker : public null_chrono_spec_handler { + private: + bool has_timezone_ = false; + + public: + constexpr explicit tm_format_checker(bool has_timezone) + : has_timezone_(has_timezone) {} + + FMT_NORETURN inline void unsupported() { + FMT_THROW(format_error("no format")); + } + + template + FMT_CONSTEXPR void on_text(const Char*, const Char*) {} + FMT_CONSTEXPR void on_year(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_short_year(numeric_system) {} + FMT_CONSTEXPR void on_offset_year() {} + FMT_CONSTEXPR void on_century(numeric_system) {} + FMT_CONSTEXPR void on_iso_week_based_year() {} + FMT_CONSTEXPR void on_iso_week_based_short_year() {} + FMT_CONSTEXPR void on_abbr_weekday() {} + FMT_CONSTEXPR void on_full_weekday() {} + FMT_CONSTEXPR void on_dec0_weekday(numeric_system) {} + FMT_CONSTEXPR void on_dec1_weekday(numeric_system) {} + FMT_CONSTEXPR void on_abbr_month() {} + FMT_CONSTEXPR void on_full_month() {} + FMT_CONSTEXPR void on_dec_month(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_dec0_week_of_year(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_dec1_week_of_year(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_iso_week_of_year(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_day_of_year(pad_type) {} + FMT_CONSTEXPR void on_day_of_month(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_24_hour(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_12_hour(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_minute(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_second(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_datetime(numeric_system) {} + FMT_CONSTEXPR void on_loc_date(numeric_system) {} + FMT_CONSTEXPR void on_loc_time(numeric_system) {} + FMT_CONSTEXPR void on_us_date() {} + FMT_CONSTEXPR void on_iso_date() {} + FMT_CONSTEXPR void on_12_hour_time() {} + FMT_CONSTEXPR void on_24_hour_time() {} + FMT_CONSTEXPR void on_iso_time() {} + FMT_CONSTEXPR void on_am_pm() {} + FMT_CONSTEXPR void on_utc_offset(numeric_system) { + if (!has_timezone_) FMT_THROW(format_error("no timezone")); + } + FMT_CONSTEXPR void on_tz_name() { + if (!has_timezone_) FMT_THROW(format_error("no timezone")); + } }; -inline const char* tm_wday_full_name(int wday) { - static constexpr const char* full_name_list[] = {"Sunday", "Monday", "Tuesday", "Wednesday", - "Thursday", "Friday", "Saturday"}; - return wday >= 0 && wday <= 6 ? full_name_list[wday] : "?"; +inline auto tm_wday_full_name(int wday) -> const char* { + static constexpr const char* full_name_list[] = { + "Sunday", "Monday", "Tuesday", "Wednesday", + "Thursday", "Friday", "Saturday"}; + return wday >= 0 && wday <= 6 ? full_name_list[wday] : "?"; } -inline const char* tm_wday_short_name(int wday) { - static constexpr const char* short_name_list[] = {"Sun", "Mon", "Tue", "Wed", - "Thu", "Fri", "Sat"}; - return wday >= 0 && wday <= 6 ? short_name_list[wday] : "???"; +inline auto tm_wday_short_name(int wday) -> const char* { + static constexpr const char* short_name_list[] = {"Sun", "Mon", "Tue", "Wed", + "Thu", "Fri", "Sat"}; + return wday >= 0 && wday <= 6 ? short_name_list[wday] : "???"; } -inline const char* tm_mon_full_name(int mon) { - static constexpr const char* full_name_list[] = { - "January", "February", "March", "April", "May", "June", - "July", "August", "September", "October", "November", "December"}; - return mon >= 0 && mon <= 11 ? full_name_list[mon] : "?"; +inline auto tm_mon_full_name(int mon) -> const char* { + static constexpr const char* full_name_list[] = { + "January", "February", "March", "April", "May", "June", + "July", "August", "September", "October", "November", "December"}; + return mon >= 0 && mon <= 11 ? full_name_list[mon] : "?"; } -inline const char* tm_mon_short_name(int mon) { - static constexpr const char* short_name_list[] = { - "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", - }; - return mon >= 0 && mon <= 11 ? short_name_list[mon] : "???"; +inline auto tm_mon_short_name(int mon) -> const char* { + static constexpr const char* short_name_list[] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", + }; + return mon >= 0 && mon <= 11 ? short_name_list[mon] : "???"; } template -struct has_member_data_tm_gmtoff : std::false_type {}; +struct has_tm_gmtoff : std::false_type {}; template -struct has_member_data_tm_gmtoff> : std::true_type {}; +struct has_tm_gmtoff> : std::true_type {}; -template -struct has_member_data_tm_zone : std::false_type {}; +template struct has_tm_zone : std::false_type {}; template -struct has_member_data_tm_zone> : std::true_type {}; +struct has_tm_zone> : std::true_type {}; -#if FMT_USE_TZSET -inline void tzset_once() { - static bool init = []() -> bool { - _tzset(); - return true; - }(); - ignore_unused(init); +template ::value)> +bool set_tm_zone(T& time, char* tz) { + time.tm_zone = tz; + return true; +} +template ::value)> +bool set_tm_zone(T&, char*) { + return false; } -#endif - -template -class tm_writer { -private: - static constexpr int days_per_week = 7; - - const std::locale& loc_; - const bool is_classic_; - OutputIt out_; - const std::tm& tm_; - - auto tm_sec() const noexcept -> int { - FMT_ASSERT(tm_.tm_sec >= 0 && tm_.tm_sec <= 61, ""); - return tm_.tm_sec; - } - auto tm_min() const noexcept -> int { - FMT_ASSERT(tm_.tm_min >= 0 && tm_.tm_min <= 59, ""); - return tm_.tm_min; - } - auto tm_hour() const noexcept -> int { - FMT_ASSERT(tm_.tm_hour >= 0 && tm_.tm_hour <= 23, ""); - return tm_.tm_hour; - } - auto tm_mday() const noexcept -> int { - FMT_ASSERT(tm_.tm_mday >= 1 && tm_.tm_mday <= 31, ""); - return tm_.tm_mday; - } - auto tm_mon() const noexcept -> int { - FMT_ASSERT(tm_.tm_mon >= 0 && tm_.tm_mon <= 11, ""); - return tm_.tm_mon; - } - auto tm_year() const noexcept -> long long { return 1900ll + tm_.tm_year; } - auto tm_wday() const noexcept -> int { - FMT_ASSERT(tm_.tm_wday >= 0 && tm_.tm_wday <= 6, ""); - return tm_.tm_wday; - } - auto tm_yday() const noexcept -> int { - FMT_ASSERT(tm_.tm_yday >= 0 && tm_.tm_yday <= 365, ""); - return tm_.tm_yday; - } - - auto tm_hour12() const noexcept -> int { - const auto h = tm_hour(); - const auto z = h < 12 ? h : h - 12; - return z == 0 ? 12 : z; - } - - // POSIX and the C Standard are unclear or inconsistent about what %C and %y - // do if the year is negative or exceeds 9999. Use the convention that %C - // concatenated with %y yields the same output as %Y, and that %Y contains at - // least 4 characters, with more only if necessary. - auto split_year_lower(long long year) const noexcept -> int { - auto l = year % 100; - if (l < 0) l = -l; // l in [0, 99] - return static_cast(l); - } - - // Algorithm: - // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_the_week_number_from_a_month_and_day_of_the_month_or_ordinal_date - auto iso_year_weeks(long long curr_year) const noexcept -> int { - const auto prev_year = curr_year - 1; - const auto curr_p = - (curr_year + curr_year / 4 - curr_year / 100 + curr_year / 400) % days_per_week; - const auto prev_p = - (prev_year + prev_year / 4 - prev_year / 100 + prev_year / 400) % days_per_week; - return 52 + ((curr_p == 4 || prev_p == 3) ? 1 : 0); - } - auto iso_week_num(int tm_yday, int tm_wday) const noexcept -> int { - return (tm_yday + 11 - (tm_wday == 0 ? days_per_week : tm_wday)) / days_per_week; - } - auto tm_iso_week_year() const noexcept -> long long { - const auto year = tm_year(); - const auto w = iso_week_num(tm_yday(), tm_wday()); - if (w < 1) return year - 1; - if (w > iso_year_weeks(year)) return year + 1; - return year; - } - auto tm_iso_week_of_year() const noexcept -> int { - const auto year = tm_year(); - const auto w = iso_week_num(tm_yday(), tm_wday()); - if (w < 1) return iso_year_weeks(year - 1); - if (w > iso_year_weeks(year)) return 1; - return w; - } - - void write1(int value) { *out_++ = static_cast('0' + to_unsigned(value) % 10); } - void write2(int value) { - const char* d = digits2(to_unsigned(value) % 100); - *out_++ = *d++; - *out_++ = *d; - } - - void write_year_extended(long long year) { - // At least 4 characters. - int width = 4; - if (year < 0) { - *out_++ = '-'; - year = 0 - year; - --width; - } - uint32_or_64_or_128_t n = to_unsigned(year); - const int num_digits = count_digits(n); - if (width > num_digits) out_ = std::fill_n(out_, width - num_digits, '0'); - out_ = format_decimal(out_, n, num_digits).end; - } - void write_year(long long year) { - if (year >= 0 && year < 10000) { - write2(static_cast(year / 100)); - write2(static_cast(year % 100)); - } else { - write_year_extended(year); - } - } - - void write_utc_offset(long offset) { - if (offset < 0) { - *out_++ = '-'; - offset = -offset; - } else { - *out_++ = '+'; - } - offset /= 60; - write2(static_cast(offset / 60)); - write2(static_cast(offset % 60)); - } - template ::value)> - void format_utc_offset_impl(const T& tm) { - write_utc_offset(tm.tm_gmtoff); - } - template ::value)> - void format_utc_offset_impl(const T& tm) { -#if defined(_WIN32) && defined(_UCRT) - #if FMT_USE_TZSET - tzset_once(); - #endif - long offset = 0; - _get_timezone(&offset); - if (tm.tm_isdst) { - long dstbias = 0; - _get_dstbias(&dstbias); - offset += dstbias; - } - write_utc_offset(-offset); -#else - ignore_unused(tm); - format_localized('z'); -#endif - } - - template ::value)> - void format_tz_name_impl(const T& tm) { - if (is_classic_) - out_ = write_tm_str(out_, tm.tm_zone, loc_); - else - format_localized('Z'); - } - template ::value)> - void format_tz_name_impl(const T&) { - format_localized('Z'); - } - - void format_localized(char format, char modifier = 0) { - out_ = write(out_, tm_, loc_, format, modifier); - } - -public: - tm_writer(const std::locale& loc, OutputIt out, const std::tm& tm) - : loc_(loc), - is_classic_(loc_ == get_classic_locale()), - out_(out), - tm_(tm) {} - - OutputIt out() const { return out_; } - - FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) { - out_ = copy_str(begin, end, out_); - } - - void on_abbr_weekday() { - if (is_classic_) - out_ = write(out_, tm_wday_short_name(tm_wday())); - else - format_localized('a'); - } - void on_full_weekday() { - if (is_classic_) - out_ = write(out_, tm_wday_full_name(tm_wday())); - else - format_localized('A'); - } - void on_dec0_weekday(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) return write1(tm_wday()); - format_localized('w', 'O'); - } - void on_dec1_weekday(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) { - auto wday = tm_wday(); - write1(wday == 0 ? days_per_week : wday); - } else { - format_localized('u', 'O'); - } - } - - void on_abbr_month() { - if (is_classic_) - out_ = write(out_, tm_mon_short_name(tm_mon())); - else - format_localized('b'); - } - void on_full_month() { - if (is_classic_) - out_ = write(out_, tm_mon_full_name(tm_mon())); - else - format_localized('B'); - } - - void on_datetime(numeric_system ns) { - if (is_classic_) { - on_abbr_weekday(); - *out_++ = ' '; - on_abbr_month(); - *out_++ = ' '; - on_day_of_month_space(numeric_system::standard); - *out_++ = ' '; - on_iso_time(); - *out_++ = ' '; - on_year(numeric_system::standard); - } else { - format_localized('c', ns == numeric_system::standard ? '\0' : 'E'); - } - } - void on_loc_date(numeric_system ns) { - if (is_classic_) - on_us_date(); - else - format_localized('x', ns == numeric_system::standard ? '\0' : 'E'); - } - void on_loc_time(numeric_system ns) { - if (is_classic_) - on_iso_time(); - else - format_localized('X', ns == numeric_system::standard ? '\0' : 'E'); - } - void on_us_date() { - char buf[8]; - write_digit2_separated(buf, to_unsigned(tm_mon() + 1), to_unsigned(tm_mday()), - to_unsigned(split_year_lower(tm_year())), '/'); - out_ = copy_str(std::begin(buf), std::end(buf), out_); - } - void on_iso_date() { - auto year = tm_year(); - char buf[10]; - size_t offset = 0; - if (year >= 0 && year < 10000) { - copy2(buf, digits2(static_cast(year / 100))); - } else { - offset = 4; - write_year_extended(year); - year = 0; - } - write_digit2_separated(buf + 2, static_cast(year % 100), - to_unsigned(tm_mon() + 1), to_unsigned(tm_mday()), '-'); - out_ = copy_str(std::begin(buf) + offset, std::end(buf), out_); - } - - void on_utc_offset() { format_utc_offset_impl(tm_); } - void on_tz_name() { format_tz_name_impl(tm_); } - - void on_year(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) return write_year(tm_year()); - format_localized('Y', 'E'); - } - void on_short_year(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) - return write2(split_year_lower(tm_year())); - format_localized('y', 'O'); - } - void on_offset_year() { - if (is_classic_) return write2(split_year_lower(tm_year())); - format_localized('y', 'E'); - } - void on_century(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) { - auto year = tm_year(); - auto upper = year / 100; - if (year >= -99 && year < 0) { - // Zero upper on negative year. - *out_++ = '-'; - *out_++ = '0'; - } else if (upper >= 0 && upper < 100) { - write2(static_cast(upper)); - } else { - out_ = write(out_, upper); - } - } else { - format_localized('C', 'E'); - } - } +inline char* utc() { + static char tz[] = "UTC"; + return tz; +} - void on_dec_month(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) return write2(tm_mon() + 1); - format_localized('m', 'O'); - } +// Converts value to Int and checks that it's in the range [0, upper). +template ::value)> +inline auto to_nonnegative_int(T value, Int upper) -> Int { + if (!std::is_unsigned::value && + (value < 0 || to_unsigned(value) > to_unsigned(upper))) { + FMT_THROW(format_error("chrono value is out of range")); + } + return static_cast(value); +} +template ::value)> +inline auto to_nonnegative_int(T value, Int upper) -> Int { + auto int_value = static_cast(value); + if (int_value < 0 || value > static_cast(upper)) + FMT_THROW(format_error("invalid value")); + return int_value; +} - void on_dec0_week_of_year(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) - return write2((tm_yday() + days_per_week - tm_wday()) / days_per_week); - format_localized('U', 'O'); - } - void on_dec1_week_of_year(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) { - auto wday = tm_wday(); - write2((tm_yday() + days_per_week - (wday == 0 ? (days_per_week - 1) : (wday - 1))) / - days_per_week); - } else { - format_localized('W', 'O'); - } - } - void on_iso_week_of_year(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) return write2(tm_iso_week_of_year()); - format_localized('V', 'O'); - } +constexpr auto pow10(std::uint32_t n) -> long long { + return n == 0 ? 1 : 10 * pow10(n - 1); +} - void on_iso_week_based_year() { write_year(tm_iso_week_year()); } - void on_iso_week_based_short_year() { write2(split_year_lower(tm_iso_week_year())); } +// Counts the number of fractional digits in the range [0, 18] according to the +// C++20 spec. If more than 18 fractional digits are required then returns 6 for +// microseconds precision. +template () / 10)> +struct count_fractional_digits { + static constexpr int value = + Num % Den == 0 ? N : count_fractional_digits::value; +}; - void on_day_of_year() { - auto yday = tm_yday() + 1; - write1(yday / 100); - write2(yday % 100); - } - void on_day_of_month(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) return write2(tm_mday()); - format_localized('d', 'O'); - } - void on_day_of_month_space(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) { - auto mday = to_unsigned(tm_mday()) % 100; - const char* d2 = digits2(mday); - *out_++ = mday < 10 ? ' ' : d2[0]; - *out_++ = d2[1]; - } else { - format_localized('e', 'O'); - } - } +// Base case that doesn't instantiate any more templates +// in order to avoid overflow. +template +struct count_fractional_digits { + static constexpr int value = (Num % Den == 0) ? N : 6; +}; - void on_24_hour(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) return write2(tm_hour()); - format_localized('H', 'O'); - } - void on_12_hour(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) return write2(tm_hour12()); - format_localized('I', 'O'); - } - void on_minute(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) return write2(tm_min()); - format_localized('M', 'O'); - } - void on_second(numeric_system ns) { - if (is_classic_ || ns == numeric_system::standard) return write2(tm_sec()); - format_localized('S', 'O'); - } +// Format subseconds which are given as an integer type with an appropriate +// number of digits. +template +void write_fractional_seconds(OutputIt& out, Duration d, int precision = -1) { + constexpr auto num_fractional_digits = + count_fractional_digits::value; + + using subsecond_precision = std::chrono::duration< + typename std::common_type::type, + std::ratio<1, pow10(num_fractional_digits)>>; + + const auto fractional = d - detail::duration_cast(d); + const auto subseconds = + std::chrono::treat_as_floating_point< + typename subsecond_precision::rep>::value + ? fractional.count() + : detail::duration_cast(fractional).count(); + auto n = static_cast>(subseconds); + const int num_digits = count_digits(n); + + int leading_zeroes = (std::max)(0, num_fractional_digits - num_digits); + if (precision < 0) { + FMT_ASSERT(!std::is_floating_point::value, ""); + if (std::ratio_less::value) { + *out++ = '.'; + out = detail::fill_n(out, leading_zeroes, '0'); + out = format_decimal(out, n, num_digits); + } + } else if (precision > 0) { + *out++ = '.'; + leading_zeroes = min_of(leading_zeroes, precision); + int remaining = precision - leading_zeroes; + out = detail::fill_n(out, leading_zeroes, '0'); + if (remaining < num_digits) { + int num_truncated_digits = num_digits - remaining; + n /= to_unsigned(pow10(to_unsigned(num_truncated_digits))); + if (n != 0) out = format_decimal(out, n, remaining); + return; + } + if (n != 0) { + out = format_decimal(out, n, num_digits); + remaining -= num_digits; + } + out = detail::fill_n(out, remaining, '0'); + } +} - void on_12_hour_time() { - if (is_classic_) { - char buf[8]; - write_digit2_separated(buf, to_unsigned(tm_hour12()), to_unsigned(tm_min()), - to_unsigned(tm_sec()), ':'); - out_ = copy_str(std::begin(buf), std::end(buf), out_); - *out_++ = ' '; - on_am_pm(); - } else { - format_localized('r'); - } - } - void on_24_hour_time() { - write2(tm_hour()); - *out_++ = ':'; - write2(tm_min()); - } - void on_iso_time() { - char buf[8]; - write_digit2_separated(buf, to_unsigned(tm_hour()), to_unsigned(tm_min()), - to_unsigned(tm_sec()), ':'); - out_ = copy_str(std::begin(buf), std::end(buf), out_); - } +// Format subseconds which are given as a floating point type with an +// appropriate number of digits. We cannot pass the Duration here, as we +// explicitly need to pass the Rep value in the duration_formatter. +template +void write_floating_seconds(memory_buffer& buf, Duration duration, + int num_fractional_digits = -1) { + using rep = typename Duration::rep; + FMT_ASSERT(std::is_floating_point::value, ""); + + auto val = duration.count(); + + if (num_fractional_digits < 0) { + // For `std::round` with fallback to `round`: + // On some toolchains `std::round` is not available (e.g. GCC 6). + using namespace std; + num_fractional_digits = + count_fractional_digits::value; + if (num_fractional_digits < 6 && static_cast(round(val)) != val) + num_fractional_digits = 6; + } + + fmt::format_to(std::back_inserter(buf), FMT_STRING("{:.{}f}"), + std::fmod(val * static_cast(Duration::period::num) / + static_cast(Duration::period::den), + static_cast(60)), + num_fractional_digits); +} - void on_am_pm() { - if (is_classic_) { - *out_++ = tm_hour() < 12 ? 'A' : 'P'; - *out_++ = 'M'; +template +class tm_writer { + private: + static constexpr int days_per_week = 7; + + const std::locale& loc_; + bool is_classic_; + OutputIt out_; + const Duration* subsecs_; + const std::tm& tm_; + + auto tm_sec() const noexcept -> int { + FMT_ASSERT(tm_.tm_sec >= 0 && tm_.tm_sec <= 61, ""); + return tm_.tm_sec; + } + auto tm_min() const noexcept -> int { + FMT_ASSERT(tm_.tm_min >= 0 && tm_.tm_min <= 59, ""); + return tm_.tm_min; + } + auto tm_hour() const noexcept -> int { + FMT_ASSERT(tm_.tm_hour >= 0 && tm_.tm_hour <= 23, ""); + return tm_.tm_hour; + } + auto tm_mday() const noexcept -> int { + FMT_ASSERT(tm_.tm_mday >= 1 && tm_.tm_mday <= 31, ""); + return tm_.tm_mday; + } + auto tm_mon() const noexcept -> int { + FMT_ASSERT(tm_.tm_mon >= 0 && tm_.tm_mon <= 11, ""); + return tm_.tm_mon; + } + auto tm_year() const noexcept -> long long { return 1900ll + tm_.tm_year; } + auto tm_wday() const noexcept -> int { + FMT_ASSERT(tm_.tm_wday >= 0 && tm_.tm_wday <= 6, ""); + return tm_.tm_wday; + } + auto tm_yday() const noexcept -> int { + FMT_ASSERT(tm_.tm_yday >= 0 && tm_.tm_yday <= 365, ""); + return tm_.tm_yday; + } + + auto tm_hour12() const noexcept -> int { + auto h = tm_hour(); + auto z = h < 12 ? h : h - 12; + return z == 0 ? 12 : z; + } + + // POSIX and the C Standard are unclear or inconsistent about what %C and %y + // do if the year is negative or exceeds 9999. Use the convention that %C + // concatenated with %y yields the same output as %Y, and that %Y contains at + // least 4 characters, with more only if necessary. + auto split_year_lower(long long year) const noexcept -> int { + auto l = year % 100; + if (l < 0) l = -l; // l in [0, 99] + return static_cast(l); + } + + // Algorithm: https://en.wikipedia.org/wiki/ISO_week_date. + auto iso_year_weeks(long long curr_year) const noexcept -> int { + auto prev_year = curr_year - 1; + auto curr_p = + (curr_year + curr_year / 4 - curr_year / 100 + curr_year / 400) % + days_per_week; + auto prev_p = + (prev_year + prev_year / 4 - prev_year / 100 + prev_year / 400) % + days_per_week; + return 52 + ((curr_p == 4 || prev_p == 3) ? 1 : 0); + } + auto iso_week_num(int tm_yday, int tm_wday) const noexcept -> int { + return (tm_yday + 11 - (tm_wday == 0 ? days_per_week : tm_wday)) / + days_per_week; + } + auto tm_iso_week_year() const noexcept -> long long { + auto year = tm_year(); + auto w = iso_week_num(tm_yday(), tm_wday()); + if (w < 1) return year - 1; + if (w > iso_year_weeks(year)) return year + 1; + return year; + } + auto tm_iso_week_of_year() const noexcept -> int { + auto year = tm_year(); + auto w = iso_week_num(tm_yday(), tm_wday()); + if (w < 1) return iso_year_weeks(year - 1); + if (w > iso_year_weeks(year)) return 1; + return w; + } + + void write1(int value) { + *out_++ = static_cast('0' + to_unsigned(value) % 10); + } + void write2(int value) { + const char* d = digits2(to_unsigned(value) % 100); + *out_++ = *d++; + *out_++ = *d; + } + void write2(int value, pad_type pad) { + unsigned int v = to_unsigned(value) % 100; + if (v >= 10) { + const char* d = digits2(v); + *out_++ = *d++; + *out_++ = *d; + } else { + out_ = detail::write_padding(out_, pad); + *out_++ = static_cast('0' + v); + } + } + + void write_year_extended(long long year, pad_type pad) { + // At least 4 characters. + int width = 4; + bool negative = year < 0; + if (negative) { + year = 0 - year; + --width; + } + uint32_or_64_or_128_t n = to_unsigned(year); + const int num_digits = count_digits(n); + if (negative && pad == pad_type::zero) *out_++ = '-'; + if (width > num_digits) + out_ = detail::write_padding(out_, pad, width - num_digits); + if (negative && pad != pad_type::zero) *out_++ = '-'; + out_ = format_decimal(out_, n, num_digits); + } + void write_year(long long year, pad_type pad) { + write_year_extended(year, pad); + } + + void write_utc_offset(long long offset, numeric_system ns) { + if (offset < 0) { + *out_++ = '-'; + offset = -offset; + } else { + *out_++ = '+'; + } + offset /= 60; + write2(static_cast(offset / 60)); + if (ns != numeric_system::standard) *out_++ = ':'; + write2(static_cast(offset % 60)); + } + + template ::value)> + void format_utc_offset(const T& tm, numeric_system ns) { + write_utc_offset(tm.tm_gmtoff, ns); + } + template ::value)> + void format_utc_offset(const T&, numeric_system ns) { + write_utc_offset(0, ns); + } + + template ::value)> + void format_tz_name(const T& tm) { + out_ = write_tm_str(out_, tm.tm_zone, loc_); + } + template ::value)> + void format_tz_name(const T&) { + out_ = std::copy_n(utc(), 3, out_); + } + + void format_localized(char format, char modifier = 0) { + out_ = write(out_, tm_, loc_, format, modifier); + } + + public: + tm_writer(const std::locale& loc, OutputIt out, const std::tm& tm, + const Duration* subsecs = nullptr) + : loc_(loc), + is_classic_(loc_ == get_classic_locale()), + out_(out), + subsecs_(subsecs), + tm_(tm) {} + + auto out() const -> OutputIt { return out_; } + + FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) { + out_ = copy(begin, end, out_); + } + + void on_abbr_weekday() { + if (is_classic_) + out_ = write(out_, tm_wday_short_name(tm_wday())); + else + format_localized('a'); + } + void on_full_weekday() { + if (is_classic_) + out_ = write(out_, tm_wday_full_name(tm_wday())); + else + format_localized('A'); + } + void on_dec0_weekday(numeric_system ns) { + if (is_classic_ || ns == numeric_system::standard) return write1(tm_wday()); + format_localized('w', 'O'); + } + void on_dec1_weekday(numeric_system ns) { + if (is_classic_ || ns == numeric_system::standard) { + auto wday = tm_wday(); + write1(wday == 0 ? days_per_week : wday); + } else { + format_localized('u', 'O'); + } + } + + void on_abbr_month() { + if (is_classic_) + out_ = write(out_, tm_mon_short_name(tm_mon())); + else + format_localized('b'); + } + void on_full_month() { + if (is_classic_) + out_ = write(out_, tm_mon_full_name(tm_mon())); + else + format_localized('B'); + } + + void on_datetime(numeric_system ns) { + if (is_classic_) { + on_abbr_weekday(); + *out_++ = ' '; + on_abbr_month(); + *out_++ = ' '; + on_day_of_month(numeric_system::standard, pad_type::space); + *out_++ = ' '; + on_iso_time(); + *out_++ = ' '; + on_year(numeric_system::standard, pad_type::space); + } else { + format_localized('c', ns == numeric_system::standard ? '\0' : 'E'); + } + } + void on_loc_date(numeric_system ns) { + if (is_classic_) + on_us_date(); + else + format_localized('x', ns == numeric_system::standard ? '\0' : 'E'); + } + void on_loc_time(numeric_system ns) { + if (is_classic_) + on_iso_time(); + else + format_localized('X', ns == numeric_system::standard ? '\0' : 'E'); + } + void on_us_date() { + char buf[8]; + write_digit2_separated(buf, to_unsigned(tm_mon() + 1), + to_unsigned(tm_mday()), + to_unsigned(split_year_lower(tm_year())), '/'); + out_ = copy(std::begin(buf), std::end(buf), out_); + } + void on_iso_date() { + auto year = tm_year(); + char buf[10]; + size_t offset = 0; + if (year >= 0 && year < 10000) { + write2digits(buf, static_cast(year / 100)); + } else { + offset = 4; + write_year_extended(year, pad_type::zero); + year = 0; + } + write_digit2_separated(buf + 2, static_cast(year % 100), + to_unsigned(tm_mon() + 1), to_unsigned(tm_mday()), + '-'); + out_ = copy(std::begin(buf) + offset, std::end(buf), out_); + } + + void on_utc_offset(numeric_system ns) { format_utc_offset(tm_, ns); } + void on_tz_name() { format_tz_name(tm_); } + + void on_year(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write_year(tm_year(), pad); + format_localized('Y', 'E'); + } + void on_short_year(numeric_system ns) { + if (is_classic_ || ns == numeric_system::standard) + return write2(split_year_lower(tm_year())); + format_localized('y', 'O'); + } + void on_offset_year() { + if (is_classic_) return write2(split_year_lower(tm_year())); + format_localized('y', 'E'); + } + + void on_century(numeric_system ns) { + if (is_classic_ || ns == numeric_system::standard) { + auto year = tm_year(); + auto upper = year / 100; + if (year >= -99 && year < 0) { + // Zero upper on negative year. + *out_++ = '-'; + *out_++ = '0'; + } else if (upper >= 0 && upper < 100) { + write2(static_cast(upper)); + } else { + out_ = write(out_, upper); + } + } else { + format_localized('C', 'E'); + } + } + + void on_dec_month(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_mon() + 1, pad); + format_localized('m', 'O'); + } + + void on_dec0_week_of_year(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2((tm_yday() + days_per_week - tm_wday()) / days_per_week, + pad); + format_localized('U', 'O'); + } + void on_dec1_week_of_year(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) { + auto wday = tm_wday(); + write2((tm_yday() + days_per_week - + (wday == 0 ? (days_per_week - 1) : (wday - 1))) / + days_per_week, + pad); + } else { + format_localized('W', 'O'); + } + } + void on_iso_week_of_year(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_iso_week_of_year(), pad); + format_localized('V', 'O'); + } + + void on_iso_week_based_year() { + write_year(tm_iso_week_year(), pad_type::zero); + } + void on_iso_week_based_short_year() { + write2(split_year_lower(tm_iso_week_year())); + } + + void on_day_of_year(pad_type pad) { + auto yday = tm_yday() + 1; + auto digit1 = yday / 100; + if (digit1 != 0) + write1(digit1); + else + out_ = detail::write_padding(out_, pad); + write2(yday % 100, pad); + } + + void on_day_of_month(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_mday(), pad); + format_localized('d', 'O'); + } + + void on_24_hour(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_hour(), pad); + format_localized('H', 'O'); + } + void on_12_hour(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_hour12(), pad); + format_localized('I', 'O'); + } + void on_minute(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_min(), pad); + format_localized('M', 'O'); + } + + void on_second(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) { + write2(tm_sec(), pad); + if (subsecs_) { + if (std::is_floating_point::value) { + auto buf = memory_buffer(); + write_floating_seconds(buf, *subsecs_); + if (buf.size() > 1) { + // Remove the leading "0", write something like ".123". + out_ = copy(buf.begin() + 1, buf.end(), out_); + } } else { - format_localized('p'); + write_fractional_seconds(out_, *subsecs_); } + } + } else { + // Currently no formatting of subseconds when a locale is set. + format_localized('S', 'O'); + } + } + + void on_12_hour_time() { + if (is_classic_) { + char buf[8]; + write_digit2_separated(buf, to_unsigned(tm_hour12()), + to_unsigned(tm_min()), to_unsigned(tm_sec()), ':'); + out_ = copy(std::begin(buf), std::end(buf), out_); + *out_++ = ' '; + on_am_pm(); + } else { + format_localized('r'); + } + } + void on_24_hour_time() { + write2(tm_hour()); + *out_++ = ':'; + write2(tm_min()); + } + void on_iso_time() { + on_24_hour_time(); + *out_++ = ':'; + on_second(numeric_system::standard, pad_type::zero); + } + + void on_am_pm() { + if (is_classic_) { + *out_++ = tm_hour() < 12 ? 'A' : 'P'; + *out_++ = 'M'; + } else { + format_localized('p'); } + } - // These apply to chrono durations but not tm. - void on_duration_value() {} - void on_duration_unit() {} + // These apply to chrono durations but not tm. + void on_duration_value() {} + void on_duration_unit() {} }; struct chrono_format_checker : null_chrono_spec_handler { - FMT_NORETURN void unsupported() { FMT_THROW(format_error("no date")); } - - template - FMT_CONSTEXPR void on_text(const Char*, const Char*) {} - FMT_CONSTEXPR void on_24_hour(numeric_system) {} - FMT_CONSTEXPR void on_12_hour(numeric_system) {} - FMT_CONSTEXPR void on_minute(numeric_system) {} - FMT_CONSTEXPR void on_second(numeric_system) {} - FMT_CONSTEXPR void on_12_hour_time() {} - FMT_CONSTEXPR void on_24_hour_time() {} - FMT_CONSTEXPR void on_iso_time() {} - FMT_CONSTEXPR void on_am_pm() {} - FMT_CONSTEXPR void on_duration_value() {} - FMT_CONSTEXPR void on_duration_unit() {} + bool has_precision_integral = false; + + FMT_NORETURN inline void unsupported() { FMT_THROW(format_error("no date")); } + + template + FMT_CONSTEXPR void on_text(const Char*, const Char*) {} + FMT_CONSTEXPR void on_day_of_year(pad_type) {} + FMT_CONSTEXPR void on_24_hour(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_12_hour(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_minute(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_second(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_12_hour_time() {} + FMT_CONSTEXPR void on_24_hour_time() {} + FMT_CONSTEXPR void on_iso_time() {} + FMT_CONSTEXPR void on_am_pm() {} + FMT_CONSTEXPR void on_duration_value() const { + if (has_precision_integral) + FMT_THROW(format_error("precision not allowed for this argument type")); + } + FMT_CONSTEXPR void on_duration_unit() {} }; -template ::value)> -inline bool isfinite(T) { - return true; -} - -// Converts value to Int and checks that it's in the range [0, upper). -template ::value)> -inline Int to_nonnegative_int(T value, Int upper) { - FMT_ASSERT( - std::is_unsigned::value || (value >= 0 && to_unsigned(value) <= to_unsigned(upper)), - "invalid value"); - (void)upper; - return static_cast(value); -} -template ::value)> -inline Int to_nonnegative_int(T value, Int upper) { - if (value < 0 || value > static_cast(upper)) FMT_THROW(format_error("invalid value")); - return static_cast(value); +template ::value&& has_isfinite::value)> +inline auto isfinite(T) -> bool { + return true; } template ::value)> -inline T mod(T x, int y) { - return x % static_cast(y); +inline auto mod(T x, int y) -> T { + return x % static_cast(y); } template ::value)> -inline T mod(T x, int y) { - return std::fmod(x, static_cast(y)); +inline auto mod(T x, int y) -> T { + return std::fmod(x, static_cast(y)); } // If T is an integral type, maps T to its unsigned counterpart, otherwise // leaves it unchanged (unlike std::make_unsigned). template ::value> struct make_unsigned_or_unchanged { - using type = T; + using type = T; }; -template -struct make_unsigned_or_unchanged { - using type = typename std::make_unsigned::type; +template struct make_unsigned_or_unchanged { + using type = typename std::make_unsigned::type; }; +template ::value)> +inline auto get_milliseconds(std::chrono::duration d) + -> std::chrono::duration { + // This may overflow and/or the result may not fit in the target type. #if FMT_SAFE_DURATION_CAST -// throwing version of safe_duration_cast -template -To fmt_safe_duration_cast(std::chrono::duration from) { - int ec; - To to = safe_duration_cast::safe_duration_cast(from, ec); - if (ec) FMT_THROW(format_error("cannot format duration")); - return to; -} -#endif - -template ::value)> -inline std::chrono::duration get_milliseconds( - std::chrono::duration d) { - // this may overflow and/or the result may not fit in the - // target type. -#if FMT_SAFE_DURATION_CAST - using CommonSecondsType = typename std::common_type::type; - const auto d_as_common = fmt_safe_duration_cast(d); - const auto d_as_whole_seconds = fmt_safe_duration_cast(d_as_common); - // this conversion should be nonproblematic - const auto diff = d_as_common - d_as_whole_seconds; - const auto ms = fmt_safe_duration_cast>(diff); - return ms; + using common_seconds_type = + typename std::common_type::type; + auto d_as_common = detail::duration_cast(d); + auto d_as_whole_seconds = + detail::duration_cast(d_as_common); + // This conversion should be nonproblematic. + auto diff = d_as_common - d_as_whole_seconds; + auto ms = detail::duration_cast>(diff); + return ms; #else - auto s = std::chrono::duration_cast(d); - return std::chrono::duration_cast(d - s); + auto s = detail::duration_cast(d); + return detail::duration_cast(d - s); #endif } -// Counts the number of fractional digits in the range [0, 18] according to the -// C++20 spec. If more than 18 fractional digits are required then returns 6 for -// microseconds precision. -template () / 10)> -struct count_fractional_digits { - static constexpr int value = - Num % Den == 0 ? N : count_fractional_digits::value; -}; - -// Base case that doesn't instantiate any more templates -// in order to avoid overflow. -template -struct count_fractional_digits { - static constexpr int value = (Num % Den == 0) ? N : 6; -}; - -constexpr long long pow10(std::uint32_t n) { return n == 0 ? 1 : 10 * pow10(n - 1); } - -template ::is_signed)> -constexpr std::chrono::duration abs(std::chrono::duration d) { - // We need to compare the duration using the count() method directly - // due to a compiler bug in clang-11 regarding the spaceship operator, - // when -Wzero-as-null-pointer-constant is enabled. - // In clang-12 the bug has been fixed. See - // https://bugs.llvm.org/show_bug.cgi?id=46235 and the reproducible example: - // https://www.godbolt.org/z/Knbb5joYx. - return d.count() >= d.zero().count() ? d : -d; -} - -template ::is_signed)> -constexpr std::chrono::duration abs(std::chrono::duration d) { - return d; -} - -template ::value)> -OutputIt format_duration_value(OutputIt out, Rep val, int) { - return write(out, val); +auto format_duration_value(OutputIt out, Rep val, int) -> OutputIt { + return write(out, val); } -template ::value)> -OutputIt format_duration_value(OutputIt out, Rep val, int precision) { - auto specs = basic_format_specs(); - specs.precision = precision; - specs.type = precision >= 0 ? presentation_type::fixed_lower : presentation_type::general_lower; - return write(out, val, specs); +auto format_duration_value(OutputIt out, Rep val, int precision) -> OutputIt { + auto specs = format_specs(); + specs.precision = precision; + specs.set_type(precision >= 0 ? presentation_type::fixed + : presentation_type::general); + return write(out, val, specs); } template -OutputIt copy_unit(string_view unit, OutputIt out, Char) { - return std::copy(unit.begin(), unit.end(), out); +auto copy_unit(string_view unit, OutputIt out, Char) -> OutputIt { + return copy(unit.begin(), unit.end(), out); } template -OutputIt copy_unit(string_view unit, OutputIt out, wchar_t) { - // This works when wchar_t is UTF-32 because units only contain characters - // that have the same representation in UTF-16 and UTF-32. - utf8_to_utf16 u(unit); - return std::copy(u.c_str(), u.c_str() + u.size(), out); +auto copy_unit(string_view unit, OutputIt out, wchar_t) -> OutputIt { + // This works when wchar_t is UTF-32 because units only contain characters + // that have the same representation in UTF-16 and UTF-32. + utf8_to_utf16 u(unit); + return copy(u.c_str(), u.c_str() + u.size(), out); } template -OutputIt format_duration_unit(OutputIt out) { - if (const char* unit = get_units()) return copy_unit(string_view(unit), out, Char()); - *out++ = '['; - out = write(out, Period::num); - if (const_check(Period::den != 1)) { - *out++ = '/'; - out = write(out, Period::den); - } - *out++ = ']'; - *out++ = 's'; - return out; +auto format_duration_unit(OutputIt out) -> OutputIt { + if (const char* unit = get_units()) + return copy_unit(string_view(unit), out, Char()); + *out++ = '['; + out = write(out, Period::num); + if (const_check(Period::den != 1)) { + *out++ = '/'; + out = write(out, Period::den); + } + *out++ = ']'; + *out++ = 's'; + return out; } class get_locale { -private: - union { - std::locale locale_; - }; - bool has_locale_ = false; - -public: - get_locale(bool localized, locale_ref loc) - : has_locale_(localized) { - if (localized) ::new (&locale_) std::locale(loc.template get()); - } - ~get_locale() { - if (has_locale_) locale_.~locale(); - } - operator const std::locale&() const { return has_locale_ ? locale_ : get_classic_locale(); } + private: + union { + std::locale locale_; + }; + bool has_locale_ = false; + + public: + inline get_locale(bool localized, locale_ref loc) : has_locale_(localized) { + if (localized) + ::new (&locale_) std::locale(loc.template get()); + } + inline ~get_locale() { + if (has_locale_) locale_.~locale(); + } + inline operator const std::locale&() const { + return has_locale_ ? locale_ : get_classic_locale(); + } }; -template -struct chrono_formatter { - FormatContext& context; - OutputIt out; - int precision; - bool localized = false; - // rep is unsigned to avoid overflow. - using rep = conditional_t::value && sizeof(Rep) < sizeof(int), - unsigned, - typename make_unsigned_or_unchanged::type>; - rep val; - using seconds = std::chrono::duration; - seconds s; - using milliseconds = std::chrono::duration; - bool negative; - - using char_type = typename FormatContext::char_type; - using tm_writer_type = tm_writer; - - chrono_formatter(FormatContext& ctx, OutputIt o, std::chrono::duration d) - : context(ctx), - out(o), - val(static_cast(d.count())), - negative(false) { - if (d.count() < 0) { - val = 0 - val; - negative = true; - } - - // this may overflow and/or the result may not fit in the - // target type. -#if FMT_SAFE_DURATION_CAST - // might need checked conversion (rep!=Rep) - auto tmpval = std::chrono::duration(val); - s = fmt_safe_duration_cast(tmpval); -#else - s = std::chrono::duration_cast(std::chrono::duration(val)); -#endif +template +struct duration_formatter { + using iterator = basic_appender; + iterator out; + // rep is unsigned to avoid overflow. + using rep = + conditional_t::value && sizeof(Rep) < sizeof(int), + unsigned, typename make_unsigned_or_unchanged::type>; + rep val; + int precision; + locale_ref locale; + bool localized = false; + using seconds = std::chrono::duration; + seconds s; + using milliseconds = std::chrono::duration; + bool negative; + + using tm_writer_type = tm_writer; + + duration_formatter(iterator o, std::chrono::duration d, + locale_ref loc) + : out(o), val(static_cast(d.count())), locale(loc), negative(false) { + if (d.count() < 0) { + val = 0 - val; + negative = true; } - // returns true if nan or inf, writes to out. - bool handle_nan_inf() { - if (isfinite(val)) { - return false; - } - if (isnan(val)) { - write_nan(); - return true; - } - // must be +-inf - if (val > 0) { - write_pinf(); - } else { - write_ninf(); - } - return true; - } - - Rep hour() const { return static_cast(mod((s.count() / 3600), 24)); } - - Rep hour12() const { - Rep hour = static_cast(mod((s.count() / 3600), 12)); - return hour <= 0 ? 12 : hour; - } - - Rep minute() const { return static_cast(mod((s.count() / 60), 60)); } - Rep second() const { return static_cast(mod(s.count(), 60)); } - - std::tm time() const { - auto time = std::tm(); - time.tm_hour = to_nonnegative_int(hour(), 24); - time.tm_min = to_nonnegative_int(minute(), 60); - time.tm_sec = to_nonnegative_int(second(), 60); - return time; - } - - void write_sign() { - if (negative) { - *out++ = '-'; - negative = false; - } - } - - void write(Rep value, int width) { - write_sign(); - if (isnan(value)) return write_nan(); - uint32_or_64_or_128_t n = to_unsigned(to_nonnegative_int(value, max_value())); - int num_digits = detail::count_digits(n); - if (width > num_digits) out = std::fill_n(out, width - num_digits, '0'); - out = format_decimal(out, n, num_digits).end; - } - - template - void write_fractional_seconds(Duration d) { - FMT_ASSERT(!std::is_floating_point::value, ""); - constexpr auto num_fractional_digits = - count_fractional_digits::value; - - using subsecond_precision = std::chrono::duration< - typename std::common_type::type, - std::ratio<1, detail::pow10(num_fractional_digits)>>; - if (std::ratio_less::value) { - *out++ = '.'; - auto fractional = detail::abs(d) - std::chrono::duration_cast(d); - auto subseconds = - std::chrono::treat_as_floating_point::value - ? fractional.count() - : std::chrono::duration_cast(fractional).count(); - uint32_or_64_or_128_t n = - to_unsigned(to_nonnegative_int(subseconds, max_value())); - int num_digits = detail::count_digits(n); - if (num_fractional_digits > num_digits) - out = std::fill_n(out, num_fractional_digits - num_digits, '0'); - out = format_decimal(out, n, num_digits).end; - } - } - - void write_nan() { std::copy_n("nan", 3, out); } - void write_pinf() { std::copy_n("inf", 3, out); } - void write_ninf() { std::copy_n("-inf", 4, out); } - - template - void format_tm(const tm& time, Callback cb, Args... args) { - if (isnan(val)) return write_nan(); - get_locale loc(localized, context.locale()); - auto w = tm_writer_type(loc, out, time); - (w.*cb)(args...); - out = w.out(); - } - - void on_text(const char_type* begin, const char_type* end) { std::copy(begin, end, out); } - - // These are not implemented because durations don't have date information. - void on_abbr_weekday() {} - void on_full_weekday() {} - void on_dec0_weekday(numeric_system) {} - void on_dec1_weekday(numeric_system) {} - void on_abbr_month() {} - void on_full_month() {} - void on_datetime(numeric_system) {} - void on_loc_date(numeric_system) {} - void on_loc_time(numeric_system) {} - void on_us_date() {} - void on_iso_date() {} - void on_utc_offset() {} - void on_tz_name() {} - void on_year(numeric_system) {} - void on_short_year(numeric_system) {} - void on_offset_year() {} - void on_century(numeric_system) {} - void on_iso_week_based_year() {} - void on_iso_week_based_short_year() {} - void on_dec_month(numeric_system) {} - void on_dec0_week_of_year(numeric_system) {} - void on_dec1_week_of_year(numeric_system) {} - void on_iso_week_of_year(numeric_system) {} - void on_day_of_year() {} - void on_day_of_month(numeric_system) {} - void on_day_of_month_space(numeric_system) {} - - void on_24_hour(numeric_system ns) { - if (handle_nan_inf()) return; - - if (ns == numeric_system::standard) return write(hour(), 2); - auto time = tm(); - time.tm_hour = to_nonnegative_int(hour(), 24); - format_tm(time, &tm_writer_type::on_24_hour, ns); - } - - void on_12_hour(numeric_system ns) { - if (handle_nan_inf()) return; - - if (ns == numeric_system::standard) return write(hour12(), 2); - auto time = tm(); - time.tm_hour = to_nonnegative_int(hour12(), 12); - format_tm(time, &tm_writer_type::on_12_hour, ns); - } - - void on_minute(numeric_system ns) { - if (handle_nan_inf()) return; - - if (ns == numeric_system::standard) return write(minute(), 2); - auto time = tm(); - time.tm_min = to_nonnegative_int(minute(), 60); - format_tm(time, &tm_writer_type::on_minute, ns); - } - - void on_second(numeric_system ns) { - if (handle_nan_inf()) return; - - if (ns == numeric_system::standard) { - if (std::is_floating_point::value) { - constexpr auto num_fractional_digits = - count_fractional_digits::value; - auto buf = memory_buffer(); - format_to( - std::back_inserter(buf), runtime("{:.{}f}"), - std::fmod(val * static_cast(Period::num) / static_cast(Period::den), - static_cast(60)), - num_fractional_digits); - if (negative) *out++ = '-'; - if (buf.size() < 2 || buf[1] == '.') *out++ = '0'; - out = std::copy(buf.begin(), buf.end(), out); - } else { - write(second(), 2); - write_fractional_seconds(std::chrono::duration(val)); - } - return; - } - auto time = tm(); - time.tm_sec = to_nonnegative_int(second(), 60); - format_tm(time, &tm_writer_type::on_second, ns); - } - - void on_12_hour_time() { - if (handle_nan_inf()) return; - format_tm(time(), &tm_writer_type::on_12_hour_time); - } - - void on_24_hour_time() { - if (handle_nan_inf()) { - *out++ = ':'; - handle_nan_inf(); - return; - } - - write(hour(), 2); - *out++ = ':'; - write(minute(), 2); - } - - void on_iso_time() { - on_24_hour_time(); - *out++ = ':'; - if (handle_nan_inf()) return; - on_second(numeric_system::standard); - } - - void on_am_pm() { - if (handle_nan_inf()) return; - format_tm(time(), &tm_writer_type::on_am_pm); - } - - void on_duration_value() { - if (handle_nan_inf()) return; - write_sign(); - out = format_duration_value(out, val, precision); - } - - void on_duration_unit() { out = format_duration_unit(out); } + // this may overflow and/or the result may not fit in the + // target type. + // might need checked conversion (rep!=Rep) + s = detail::duration_cast(std::chrono::duration(val)); + } + + // returns true if nan or inf, writes to out. + auto handle_nan_inf() -> bool { + if (isfinite(val)) return false; + if (isnan(val)) { + write_nan(); + return true; + } + // must be +-inf + if (val > 0) + std::copy_n("inf", 3, out); + else + std::copy_n("-inf", 4, out); + return true; + } + + auto days() const -> Rep { return static_cast(s.count() / 86400); } + auto hour() const -> Rep { + return static_cast(mod((s.count() / 3600), 24)); + } + + auto hour12() const -> Rep { + Rep hour = static_cast(mod((s.count() / 3600), 12)); + return hour <= 0 ? 12 : hour; + } + + auto minute() const -> Rep { + return static_cast(mod((s.count() / 60), 60)); + } + auto second() const -> Rep { return static_cast(mod(s.count(), 60)); } + + auto time() const -> std::tm { + auto time = std::tm(); + time.tm_hour = to_nonnegative_int(hour(), 24); + time.tm_min = to_nonnegative_int(minute(), 60); + time.tm_sec = to_nonnegative_int(second(), 60); + return time; + } + + void write_sign() { + if (!negative) return; + *out++ = '-'; + negative = false; + } + + void write(Rep value, int width, pad_type pad = pad_type::zero) { + write_sign(); + if (isnan(value)) return write_nan(); + uint32_or_64_or_128_t n = + to_unsigned(to_nonnegative_int(value, max_value())); + int num_digits = detail::count_digits(n); + if (width > num_digits) { + out = detail::write_padding(out, pad, width - num_digits); + } + out = format_decimal(out, n, num_digits); + } + + void write_nan() { std::copy_n("nan", 3, out); } + + template + void format_tm(const tm& time, Callback cb, Args... args) { + if (isnan(val)) return write_nan(); + get_locale loc(localized, locale); + auto w = tm_writer_type(loc, out, time); + (w.*cb)(args...); + out = w.out(); + } + + void on_text(const Char* begin, const Char* end) { + copy(begin, end, out); + } + + // These are not implemented because durations don't have date information. + void on_abbr_weekday() {} + void on_full_weekday() {} + void on_dec0_weekday(numeric_system) {} + void on_dec1_weekday(numeric_system) {} + void on_abbr_month() {} + void on_full_month() {} + void on_datetime(numeric_system) {} + void on_loc_date(numeric_system) {} + void on_loc_time(numeric_system) {} + void on_us_date() {} + void on_iso_date() {} + void on_utc_offset(numeric_system) {} + void on_tz_name() {} + void on_year(numeric_system, pad_type) {} + void on_short_year(numeric_system) {} + void on_offset_year() {} + void on_century(numeric_system) {} + void on_iso_week_based_year() {} + void on_iso_week_based_short_year() {} + void on_dec_month(numeric_system, pad_type) {} + void on_dec0_week_of_year(numeric_system, pad_type) {} + void on_dec1_week_of_year(numeric_system, pad_type) {} + void on_iso_week_of_year(numeric_system, pad_type) {} + void on_day_of_month(numeric_system, pad_type) {} + + void on_day_of_year(pad_type) { + if (handle_nan_inf()) return; + write(days(), 0); + } + + void on_24_hour(numeric_system ns, pad_type pad) { + if (handle_nan_inf()) return; + + if (ns == numeric_system::standard) return write(hour(), 2, pad); + auto time = tm(); + time.tm_hour = to_nonnegative_int(hour(), 24); + format_tm(time, &tm_writer_type::on_24_hour, ns, pad); + } + + void on_12_hour(numeric_system ns, pad_type pad) { + if (handle_nan_inf()) return; + + if (ns == numeric_system::standard) return write(hour12(), 2, pad); + auto time = tm(); + time.tm_hour = to_nonnegative_int(hour12(), 12); + format_tm(time, &tm_writer_type::on_12_hour, ns, pad); + } + + void on_minute(numeric_system ns, pad_type pad) { + if (handle_nan_inf()) return; + + if (ns == numeric_system::standard) return write(minute(), 2, pad); + auto time = tm(); + time.tm_min = to_nonnegative_int(minute(), 60); + format_tm(time, &tm_writer_type::on_minute, ns, pad); + } + + void on_second(numeric_system ns, pad_type pad) { + if (handle_nan_inf()) return; + + if (ns == numeric_system::standard) { + if (std::is_floating_point::value) { + auto buf = memory_buffer(); + write_floating_seconds(buf, std::chrono::duration(val), + precision); + if (negative) *out++ = '-'; + if (buf.size() < 2 || buf[1] == '.') + out = detail::write_padding(out, pad); + out = copy(buf.begin(), buf.end(), out); + } else { + write(second(), 2, pad); + write_fractional_seconds( + out, std::chrono::duration(val), precision); + } + return; + } + auto time = tm(); + time.tm_sec = to_nonnegative_int(second(), 60); + format_tm(time, &tm_writer_type::on_second, ns, pad); + } + + void on_12_hour_time() { + if (handle_nan_inf()) return; + format_tm(time(), &tm_writer_type::on_12_hour_time); + } + + void on_24_hour_time() { + if (handle_nan_inf()) { + *out++ = ':'; + handle_nan_inf(); + return; + } + + write(hour(), 2); + *out++ = ':'; + write(minute(), 2); + } + + void on_iso_time() { + on_24_hour_time(); + *out++ = ':'; + if (handle_nan_inf()) return; + on_second(numeric_system::standard, pad_type::zero); + } + + void on_am_pm() { + if (handle_nan_inf()) return; + format_tm(time(), &tm_writer_type::on_am_pm); + } + + void on_duration_value() { + if (handle_nan_inf()) return; + write_sign(); + out = format_duration_value(out, val, precision); + } + + void on_duration_unit() { out = format_duration_unit(out); } }; -FMT_END_DETAIL_NAMESPACE +} // namespace detail #if defined(__cpp_lib_chrono) && __cpp_lib_chrono >= 201907 using weekday = std::chrono::weekday; +using day = std::chrono::day; +using month = std::chrono::month; +using year = std::chrono::year; +using year_month_day = std::chrono::year_month_day; #else // A fallback version of weekday. class weekday { -private: - unsigned char value; - -public: - weekday() = default; - explicit constexpr weekday(unsigned wd) noexcept - : value(static_cast(wd != 7 ? wd : 0)) {} - constexpr unsigned c_encoding() const noexcept { return value; } + private: + unsigned char value_; + + public: + weekday() = default; + constexpr explicit weekday(unsigned wd) noexcept + : value_(static_cast(wd != 7 ? wd : 0)) {} + constexpr auto c_encoding() const noexcept -> unsigned { return value_; } }; -class year_month_day {}; -#endif +class day { + private: + unsigned char value_; -// A rudimentary weekday formatter. -template -struct formatter { -private: - bool localized = false; - -public: - FMT_CONSTEXPR auto parse(basic_format_parse_context& ctx) -> decltype(ctx.begin()) { - auto begin = ctx.begin(), end = ctx.end(); - if (begin != end && *begin == 'L') { - ++begin; - localized = true; - } - return begin; - } + public: + day() = default; + constexpr explicit day(unsigned d) noexcept + : value_(static_cast(d)) {} + constexpr explicit operator unsigned() const noexcept { return value_; } +}; - template - auto format(weekday wd, FormatContext& ctx) const -> decltype(ctx.out()) { - auto time = std::tm(); - time.tm_wday = static_cast(wd.c_encoding()); - detail::get_locale loc(localized, ctx.locale()); - auto w = detail::tm_writer(loc, ctx.out(), time); - w.on_abbr_weekday(); - return w.out(); - } +class month { + private: + unsigned char value_; + + public: + month() = default; + constexpr explicit month(unsigned m) noexcept + : value_(static_cast(m)) {} + constexpr explicit operator unsigned() const noexcept { return value_; } }; -template -struct formatter, Char> { -private: - basic_format_specs specs; - int precision = -1; - using arg_ref_type = detail::arg_ref; - arg_ref_type width_ref; - arg_ref_type precision_ref; - bool localized = false; - basic_string_view format_str; - using duration = std::chrono::duration; - - struct spec_handler { - formatter& f; - basic_format_parse_context& context; - basic_string_view format_str; - - template - FMT_CONSTEXPR arg_ref_type make_arg_ref(Id arg_id) { - context.check_arg_id(arg_id); - return arg_ref_type(arg_id); - } +class year { + private: + int value_; - FMT_CONSTEXPR arg_ref_type make_arg_ref(basic_string_view arg_id) { - context.check_arg_id(arg_id); - return arg_ref_type(arg_id); - } + public: + year() = default; + constexpr explicit year(int y) noexcept : value_(y) {} + constexpr explicit operator int() const noexcept { return value_; } +}; - FMT_CONSTEXPR arg_ref_type make_arg_ref(detail::auto_id) { - return arg_ref_type(context.next_arg_id()); - } +class year_month_day { + private: + fmt::year year_; + fmt::month month_; + fmt::day day_; + + public: + year_month_day() = default; + constexpr year_month_day(const year& y, const month& m, const day& d) noexcept + : year_(y), month_(m), day_(d) {} + constexpr auto year() const noexcept -> fmt::year { return year_; } + constexpr auto month() const noexcept -> fmt::month { return month_; } + constexpr auto day() const noexcept -> fmt::day { return day_; } +}; +#endif // __cpp_lib_chrono >= 201907 - void on_error(const char* msg) { FMT_THROW(format_error(msg)); } - FMT_CONSTEXPR void on_fill(basic_string_view fill) { f.specs.fill = fill; } - FMT_CONSTEXPR void on_align(align_t align) { f.specs.align = align; } - FMT_CONSTEXPR void on_width(int width) { f.specs.width = width; } - FMT_CONSTEXPR void on_precision(int _precision) { f.precision = _precision; } - FMT_CONSTEXPR void end_precision() {} +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + if (it != end && *it == 'L') { + ++it; + this->set_localized(); + } + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } + + template + auto format(weekday wd, FormatContext& ctx) const -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_wday = static_cast(wd.c_encoding()); + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(this->localized(), ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_abbr_weekday(); + return w.out(); + } +}; - template - FMT_CONSTEXPR void on_dynamic_width(Id arg_id) { - f.width_ref = make_arg_ref(arg_id); - } +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } + + template + auto format(day d, FormatContext& ctx) const -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_mday = static_cast(static_cast(d)); + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(false, ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_day_of_month(detail::numeric_system::standard, detail::pad_type::zero); + return w.out(); + } +}; - template - FMT_CONSTEXPR void on_dynamic_precision(Id arg_id) { - f.precision_ref = make_arg_ref(arg_id); - } - }; - - using iterator = typename basic_format_parse_context::iterator; - struct parse_range { - iterator begin; - iterator end; - }; - - FMT_CONSTEXPR parse_range do_parse(basic_format_parse_context& ctx) { - auto begin = ctx.begin(), end = ctx.end(); - if (begin == end || *begin == '}') return {begin, begin}; - spec_handler handler{*this, ctx, format_str}; - begin = detail::parse_align(begin, end, handler); - if (begin == end) return {begin, begin}; - begin = detail::parse_width(begin, end, handler); - if (begin == end) return {begin, begin}; - if (*begin == '.') { - if (std::is_floating_point::value) - begin = detail::parse_precision(begin, end, handler); - else - handler.on_error("precision not allowed for this argument type"); - } - if (begin != end && *begin == 'L') { - ++begin; - localized = true; - } - end = detail::parse_chrono_format(begin, end, detail::chrono_format_checker()); - return {begin, end}; - } +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + if (it != end && *it == 'L') { + ++it; + this->set_localized(); + } + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } + + template + auto format(month m, FormatContext& ctx) const -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_mon = static_cast(static_cast(m)) - 1; + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(this->localized(), ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_abbr_month(); + return w.out(); + } +}; -public: - FMT_CONSTEXPR auto parse(basic_format_parse_context& ctx) -> decltype(ctx.begin()) { - auto range = do_parse(ctx); - format_str = - basic_string_view(&*range.begin, detail::to_unsigned(range.end - range.begin)); - return range.end; - } +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } + + template + auto format(year y, FormatContext& ctx) const -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_year = static_cast(y) - 1900; + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(false, ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_year(detail::numeric_system::standard, detail::pad_type::zero); + return w.out(); + } +}; - template - auto format(const duration& d, FormatContext& ctx) const -> decltype(ctx.out()) { - auto specs_copy = specs; - auto precision_copy = precision; - auto begin = format_str.begin(), end = format_str.end(); - // As a possible future optimization, we could avoid extra copying if width - // is not specified. - basic_memory_buffer buf; - auto out = std::back_inserter(buf); - detail::handle_dynamic_spec(specs_copy.width, width_ref, ctx); - detail::handle_dynamic_spec(precision_copy, precision_ref, ctx); - if (begin == end || *begin == '}') { - out = detail::format_duration_value(out, d.count(), precision_copy); - detail::format_duration_unit(out); - } else { - detail::chrono_formatter f(ctx, out, d); - f.precision = precision_copy; - f.localized = localized; - detail::parse_chrono_format(begin, end, f); - } - return detail::write(ctx.out(), basic_string_view(buf.data(), buf.size()), - specs_copy); - } +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } + + template + auto format(year_month_day val, FormatContext& ctx) const + -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_year = static_cast(val.year()) - 1900; + time.tm_mon = static_cast(static_cast(val.month())) - 1; + time.tm_mday = static_cast(static_cast(val.day())); + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(true, ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_iso_date(); + return w.out(); + } }; -template -struct formatter, Char> - : formatter { - FMT_CONSTEXPR formatter() { - basic_string_view default_specs = - detail::string_literal{}; - this->do_parse(default_specs.begin(), default_specs.end()); - } +template +struct formatter, Char> { + private: + format_specs specs_; + detail::arg_ref width_ref_; + detail::arg_ref precision_ref_; + basic_string_view fmt_; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + if (it == end || *it == '}') return it; + + it = detail::parse_align(it, end, specs_); + if (it == end) return it; + + Char c = *it; + if ((c >= '0' && c <= '9') || c == '{') { + it = detail::parse_width(it, end, specs_, width_ref_, ctx); + if (it == end) return it; + } + + auto checker = detail::chrono_format_checker(); + if (*it == '.') { + checker.has_precision_integral = !std::is_floating_point::value; + it = detail::parse_precision(it, end, specs_, precision_ref_, ctx); + } + if (it != end && *it == 'L') { + specs_.set_localized(); + ++it; + } + end = detail::parse_chrono_format(it, end, checker); + fmt_ = {it, detail::to_unsigned(end - it)}; + return end; + } + + template + auto format(std::chrono::duration d, FormatContext& ctx) const + -> decltype(ctx.out()) { + auto specs = specs_; + auto precision = specs.precision; + specs.precision = -1; + auto begin = fmt_.begin(), end = fmt_.end(); + // As a possible future optimization, we could avoid extra copying if width + // is not specified. + auto buf = basic_memory_buffer(); + auto out = basic_appender(buf); + detail::handle_dynamic_spec(specs.dynamic_width(), specs.width, width_ref_, + ctx); + detail::handle_dynamic_spec(specs.dynamic_precision(), precision, + precision_ref_, ctx); + if (begin == end || *begin == '}') { + out = detail::format_duration_value(out, d.count(), precision); + detail::format_duration_unit(out); + } else { + auto f = + detail::duration_formatter(out, d, ctx.locale()); + f.precision = precision; + f.localized = specs_.localized(); + detail::parse_chrono_format(begin, end, f); + } + return detail::write( + ctx.out(), basic_string_view(buf.data(), buf.size()), specs); + } +}; - template - auto format(std::chrono::time_point val, FormatContext& ctx) const - -> decltype(ctx.out()) { - return formatter::format(localtime(val), ctx); - } +template struct formatter { + private: + format_specs specs_; + detail::arg_ref width_ref_; + basic_string_view fmt_ = + detail::string_literal(); + + protected: + auto localized() const -> bool { return specs_.localized(); } + FMT_CONSTEXPR void set_localized() { specs_.set_localized(); } + + FMT_CONSTEXPR auto do_parse(parse_context& ctx, bool has_timezone) + -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + if (it == end || *it == '}') return it; + + it = detail::parse_align(it, end, specs_); + if (it == end) return it; + + Char c = *it; + if ((c >= '0' && c <= '9') || c == '{') { + it = detail::parse_width(it, end, specs_, width_ref_, ctx); + if (it == end) return it; + } + + if (*it == 'L') { + specs_.set_localized(); + ++it; + } + + end = detail::parse_chrono_format(it, end, + detail::tm_format_checker(has_timezone)); + // Replace the default format string only if the new spec is not empty. + if (end != it) fmt_ = {it, detail::to_unsigned(end - it)}; + return end; + } + + template + auto do_format(const std::tm& tm, FormatContext& ctx, + const Duration* subsecs) const -> decltype(ctx.out()) { + auto specs = specs_; + auto buf = basic_memory_buffer(); + auto out = basic_appender(buf); + detail::handle_dynamic_spec(specs.dynamic_width(), specs.width, width_ref_, + ctx); + + auto loc_ref = specs.localized() ? ctx.locale() : detail::locale_ref(); + detail::get_locale loc(static_cast(loc_ref), loc_ref); + auto w = detail::tm_writer, Char, Duration>( + loc, out, tm, subsecs); + detail::parse_chrono_format(fmt_.begin(), fmt_.end(), w); + return detail::write( + ctx.out(), basic_string_view(buf.data(), buf.size()), specs); + } + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + return do_parse(ctx, detail::has_tm_gmtoff::value); + } + + template + auto format(const std::tm& tm, FormatContext& ctx) const + -> decltype(ctx.out()) { + return do_format(tm, ctx, nullptr); + } }; -template -struct formatter { -private: - enum class spec { - unknown, - year_month_day, - hh_mm_ss, - }; - spec spec_ = spec::unknown; - basic_string_view specs; - -protected: - template - FMT_CONSTEXPR auto do_parse(It begin, It end) -> It { - if (begin != end && *begin == ':') ++begin; - end = detail::parse_chrono_format(begin, end, detail::tm_format_checker()); - // Replace default spec only if the new spec is not empty. - if (end != begin) specs = {begin, detail::to_unsigned(end - begin)}; - return end; - } +// DEPRECATED! Reversed order of template parameters. +template +struct formatter, Char> : private formatter { + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + return this->do_parse(ctx, true); + } + + template + auto format(sys_time val, FormatContext& ctx) const + -> decltype(ctx.out()) { + std::tm tm = gmtime(val); + using period = typename Duration::period; + if (detail::const_check( + period::num == 1 && period::den == 1 && + !std::is_floating_point::value)) { + detail::set_tm_zone(tm, detail::utc()); + return formatter::format(tm, ctx); + } + Duration epoch = val.time_since_epoch(); + Duration subsecs = detail::duration_cast( + epoch - detail::duration_cast(epoch)); + if (subsecs.count() < 0) { + auto second = detail::duration_cast(std::chrono::seconds(1)); + if (tm.tm_sec != 0) { + --tm.tm_sec; + } else { + tm = gmtime(val - second); + detail::set_tm_zone(tm, detail::utc()); + } + subsecs += second; + } + return formatter::do_format(tm, ctx, &subsecs); + } +}; -public: - FMT_CONSTEXPR auto parse(basic_format_parse_context& ctx) -> decltype(ctx.begin()) { - auto end = this->do_parse(ctx.begin(), ctx.end()); - // basic_string_view<>::compare isn't constexpr before C++17. - if (specs.size() == 2 && specs[0] == Char('%')) { - if (specs[1] == Char('F')) - spec_ = spec::year_month_day; - else if (specs[1] == Char('T')) - spec_ = spec::hh_mm_ss; - } - return end; - } +template +struct formatter, Char> + : formatter, Char> { + template + auto format(utc_time val, FormatContext& ctx) const + -> decltype(ctx.out()) { + return formatter, Char>::format( + detail::utc_clock::to_sys(val), ctx); + } +}; - template - auto format(const std::tm& tm, FormatContext& ctx) const -> decltype(ctx.out()) { - const auto loc_ref = ctx.locale(); - detail::get_locale loc(static_cast(loc_ref), loc_ref); - auto w = detail::tm_writer(loc, ctx.out(), tm); - if (spec_ == spec::year_month_day) - w.on_iso_date(); - else if (spec_ == spec::hh_mm_ss) - w.on_iso_time(); - else - detail::parse_chrono_format(specs.begin(), specs.end(), w); - return w.out(); - } +template +struct formatter, Char> + : private formatter { + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + return this->do_parse(ctx, false); + } + + template + auto format(local_time val, FormatContext& ctx) const + -> decltype(ctx.out()) { + auto time_since_epoch = val.time_since_epoch(); + auto seconds_since_epoch = + detail::duration_cast(time_since_epoch); + // Use gmtime to prevent time zone conversion since local_time has an + // unspecified time zone. + std::tm t = gmtime(seconds_since_epoch.count()); + using period = typename Duration::period; + if (period::num == 1 && period::den == 1 && + !std::is_floating_point::value) { + return formatter::format(t, ctx); + } + auto subsecs = + detail::duration_cast(time_since_epoch - seconds_since_epoch); + return formatter::do_format(t, ctx, &subsecs); + } }; -FMT_MODULE_EXPORT_END +FMT_END_EXPORT FMT_END_NAMESPACE #endif // FMT_CHRONO_H_ diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/color.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/color.h index 8c55c693f..638f15b43 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/color.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/color.h @@ -11,654 +11,627 @@ #include "format.h" FMT_BEGIN_NAMESPACE -FMT_MODULE_EXPORT_BEGIN +FMT_BEGIN_EXPORT enum class color : uint32_t { - alice_blue = 0xF0F8FF, // rgb(240,248,255) - antique_white = 0xFAEBD7, // rgb(250,235,215) - aqua = 0x00FFFF, // rgb(0,255,255) - aquamarine = 0x7FFFD4, // rgb(127,255,212) - azure = 0xF0FFFF, // rgb(240,255,255) - beige = 0xF5F5DC, // rgb(245,245,220) - bisque = 0xFFE4C4, // rgb(255,228,196) - black = 0x000000, // rgb(0,0,0) - blanched_almond = 0xFFEBCD, // rgb(255,235,205) - blue = 0x0000FF, // rgb(0,0,255) - blue_violet = 0x8A2BE2, // rgb(138,43,226) - brown = 0xA52A2A, // rgb(165,42,42) - burly_wood = 0xDEB887, // rgb(222,184,135) - cadet_blue = 0x5F9EA0, // rgb(95,158,160) - chartreuse = 0x7FFF00, // rgb(127,255,0) - chocolate = 0xD2691E, // rgb(210,105,30) - coral = 0xFF7F50, // rgb(255,127,80) - cornflower_blue = 0x6495ED, // rgb(100,149,237) - cornsilk = 0xFFF8DC, // rgb(255,248,220) - crimson = 0xDC143C, // rgb(220,20,60) - cyan = 0x00FFFF, // rgb(0,255,255) - dark_blue = 0x00008B, // rgb(0,0,139) - dark_cyan = 0x008B8B, // rgb(0,139,139) - dark_golden_rod = 0xB8860B, // rgb(184,134,11) - dark_gray = 0xA9A9A9, // rgb(169,169,169) - dark_green = 0x006400, // rgb(0,100,0) - dark_khaki = 0xBDB76B, // rgb(189,183,107) - dark_magenta = 0x8B008B, // rgb(139,0,139) - dark_olive_green = 0x556B2F, // rgb(85,107,47) - dark_orange = 0xFF8C00, // rgb(255,140,0) - dark_orchid = 0x9932CC, // rgb(153,50,204) - dark_red = 0x8B0000, // rgb(139,0,0) - dark_salmon = 0xE9967A, // rgb(233,150,122) - dark_sea_green = 0x8FBC8F, // rgb(143,188,143) - dark_slate_blue = 0x483D8B, // rgb(72,61,139) - dark_slate_gray = 0x2F4F4F, // rgb(47,79,79) - dark_turquoise = 0x00CED1, // rgb(0,206,209) - dark_violet = 0x9400D3, // rgb(148,0,211) - deep_pink = 0xFF1493, // rgb(255,20,147) - deep_sky_blue = 0x00BFFF, // rgb(0,191,255) - dim_gray = 0x696969, // rgb(105,105,105) - dodger_blue = 0x1E90FF, // rgb(30,144,255) - fire_brick = 0xB22222, // rgb(178,34,34) - floral_white = 0xFFFAF0, // rgb(255,250,240) - forest_green = 0x228B22, // rgb(34,139,34) - fuchsia = 0xFF00FF, // rgb(255,0,255) - gainsboro = 0xDCDCDC, // rgb(220,220,220) - ghost_white = 0xF8F8FF, // rgb(248,248,255) - gold = 0xFFD700, // rgb(255,215,0) - golden_rod = 0xDAA520, // rgb(218,165,32) - gray = 0x808080, // rgb(128,128,128) - green = 0x008000, // rgb(0,128,0) - green_yellow = 0xADFF2F, // rgb(173,255,47) - honey_dew = 0xF0FFF0, // rgb(240,255,240) - hot_pink = 0xFF69B4, // rgb(255,105,180) - indian_red = 0xCD5C5C, // rgb(205,92,92) - indigo = 0x4B0082, // rgb(75,0,130) - ivory = 0xFFFFF0, // rgb(255,255,240) - khaki = 0xF0E68C, // rgb(240,230,140) - lavender = 0xE6E6FA, // rgb(230,230,250) - lavender_blush = 0xFFF0F5, // rgb(255,240,245) - lawn_green = 0x7CFC00, // rgb(124,252,0) - lemon_chiffon = 0xFFFACD, // rgb(255,250,205) - light_blue = 0xADD8E6, // rgb(173,216,230) - light_coral = 0xF08080, // rgb(240,128,128) - light_cyan = 0xE0FFFF, // rgb(224,255,255) - light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210) - light_gray = 0xD3D3D3, // rgb(211,211,211) - light_green = 0x90EE90, // rgb(144,238,144) - light_pink = 0xFFB6C1, // rgb(255,182,193) - light_salmon = 0xFFA07A, // rgb(255,160,122) - light_sea_green = 0x20B2AA, // rgb(32,178,170) - light_sky_blue = 0x87CEFA, // rgb(135,206,250) - light_slate_gray = 0x778899, // rgb(119,136,153) - light_steel_blue = 0xB0C4DE, // rgb(176,196,222) - light_yellow = 0xFFFFE0, // rgb(255,255,224) - lime = 0x00FF00, // rgb(0,255,0) - lime_green = 0x32CD32, // rgb(50,205,50) - linen = 0xFAF0E6, // rgb(250,240,230) - magenta = 0xFF00FF, // rgb(255,0,255) - maroon = 0x800000, // rgb(128,0,0) - medium_aquamarine = 0x66CDAA, // rgb(102,205,170) - medium_blue = 0x0000CD, // rgb(0,0,205) - medium_orchid = 0xBA55D3, // rgb(186,85,211) - medium_purple = 0x9370DB, // rgb(147,112,219) - medium_sea_green = 0x3CB371, // rgb(60,179,113) - medium_slate_blue = 0x7B68EE, // rgb(123,104,238) - medium_spring_green = 0x00FA9A, // rgb(0,250,154) - medium_turquoise = 0x48D1CC, // rgb(72,209,204) - medium_violet_red = 0xC71585, // rgb(199,21,133) - midnight_blue = 0x191970, // rgb(25,25,112) - mint_cream = 0xF5FFFA, // rgb(245,255,250) - misty_rose = 0xFFE4E1, // rgb(255,228,225) - moccasin = 0xFFE4B5, // rgb(255,228,181) - navajo_white = 0xFFDEAD, // rgb(255,222,173) - navy = 0x000080, // rgb(0,0,128) - old_lace = 0xFDF5E6, // rgb(253,245,230) - olive = 0x808000, // rgb(128,128,0) - olive_drab = 0x6B8E23, // rgb(107,142,35) - orange = 0xFFA500, // rgb(255,165,0) - orange_red = 0xFF4500, // rgb(255,69,0) - orchid = 0xDA70D6, // rgb(218,112,214) - pale_golden_rod = 0xEEE8AA, // rgb(238,232,170) - pale_green = 0x98FB98, // rgb(152,251,152) - pale_turquoise = 0xAFEEEE, // rgb(175,238,238) - pale_violet_red = 0xDB7093, // rgb(219,112,147) - papaya_whip = 0xFFEFD5, // rgb(255,239,213) - peach_puff = 0xFFDAB9, // rgb(255,218,185) - peru = 0xCD853F, // rgb(205,133,63) - pink = 0xFFC0CB, // rgb(255,192,203) - plum = 0xDDA0DD, // rgb(221,160,221) - powder_blue = 0xB0E0E6, // rgb(176,224,230) - purple = 0x800080, // rgb(128,0,128) - rebecca_purple = 0x663399, // rgb(102,51,153) - red = 0xFF0000, // rgb(255,0,0) - rosy_brown = 0xBC8F8F, // rgb(188,143,143) - royal_blue = 0x4169E1, // rgb(65,105,225) - saddle_brown = 0x8B4513, // rgb(139,69,19) - salmon = 0xFA8072, // rgb(250,128,114) - sandy_brown = 0xF4A460, // rgb(244,164,96) - sea_green = 0x2E8B57, // rgb(46,139,87) - sea_shell = 0xFFF5EE, // rgb(255,245,238) - sienna = 0xA0522D, // rgb(160,82,45) - silver = 0xC0C0C0, // rgb(192,192,192) - sky_blue = 0x87CEEB, // rgb(135,206,235) - slate_blue = 0x6A5ACD, // rgb(106,90,205) - slate_gray = 0x708090, // rgb(112,128,144) - snow = 0xFFFAFA, // rgb(255,250,250) - spring_green = 0x00FF7F, // rgb(0,255,127) - steel_blue = 0x4682B4, // rgb(70,130,180) - tan = 0xD2B48C, // rgb(210,180,140) - teal = 0x008080, // rgb(0,128,128) - thistle = 0xD8BFD8, // rgb(216,191,216) - tomato = 0xFF6347, // rgb(255,99,71) - turquoise = 0x40E0D0, // rgb(64,224,208) - violet = 0xEE82EE, // rgb(238,130,238) - wheat = 0xF5DEB3, // rgb(245,222,179) - white = 0xFFFFFF, // rgb(255,255,255) - white_smoke = 0xF5F5F5, // rgb(245,245,245) - yellow = 0xFFFF00, // rgb(255,255,0) - yellow_green = 0x9ACD32 // rgb(154,205,50) -}; // enum class color + alice_blue = 0xF0F8FF, // rgb(240,248,255) + antique_white = 0xFAEBD7, // rgb(250,235,215) + aqua = 0x00FFFF, // rgb(0,255,255) + aquamarine = 0x7FFFD4, // rgb(127,255,212) + azure = 0xF0FFFF, // rgb(240,255,255) + beige = 0xF5F5DC, // rgb(245,245,220) + bisque = 0xFFE4C4, // rgb(255,228,196) + black = 0x000000, // rgb(0,0,0) + blanched_almond = 0xFFEBCD, // rgb(255,235,205) + blue = 0x0000FF, // rgb(0,0,255) + blue_violet = 0x8A2BE2, // rgb(138,43,226) + brown = 0xA52A2A, // rgb(165,42,42) + burly_wood = 0xDEB887, // rgb(222,184,135) + cadet_blue = 0x5F9EA0, // rgb(95,158,160) + chartreuse = 0x7FFF00, // rgb(127,255,0) + chocolate = 0xD2691E, // rgb(210,105,30) + coral = 0xFF7F50, // rgb(255,127,80) + cornflower_blue = 0x6495ED, // rgb(100,149,237) + cornsilk = 0xFFF8DC, // rgb(255,248,220) + crimson = 0xDC143C, // rgb(220,20,60) + cyan = 0x00FFFF, // rgb(0,255,255) + dark_blue = 0x00008B, // rgb(0,0,139) + dark_cyan = 0x008B8B, // rgb(0,139,139) + dark_golden_rod = 0xB8860B, // rgb(184,134,11) + dark_gray = 0xA9A9A9, // rgb(169,169,169) + dark_green = 0x006400, // rgb(0,100,0) + dark_khaki = 0xBDB76B, // rgb(189,183,107) + dark_magenta = 0x8B008B, // rgb(139,0,139) + dark_olive_green = 0x556B2F, // rgb(85,107,47) + dark_orange = 0xFF8C00, // rgb(255,140,0) + dark_orchid = 0x9932CC, // rgb(153,50,204) + dark_red = 0x8B0000, // rgb(139,0,0) + dark_salmon = 0xE9967A, // rgb(233,150,122) + dark_sea_green = 0x8FBC8F, // rgb(143,188,143) + dark_slate_blue = 0x483D8B, // rgb(72,61,139) + dark_slate_gray = 0x2F4F4F, // rgb(47,79,79) + dark_turquoise = 0x00CED1, // rgb(0,206,209) + dark_violet = 0x9400D3, // rgb(148,0,211) + deep_pink = 0xFF1493, // rgb(255,20,147) + deep_sky_blue = 0x00BFFF, // rgb(0,191,255) + dim_gray = 0x696969, // rgb(105,105,105) + dodger_blue = 0x1E90FF, // rgb(30,144,255) + fire_brick = 0xB22222, // rgb(178,34,34) + floral_white = 0xFFFAF0, // rgb(255,250,240) + forest_green = 0x228B22, // rgb(34,139,34) + fuchsia = 0xFF00FF, // rgb(255,0,255) + gainsboro = 0xDCDCDC, // rgb(220,220,220) + ghost_white = 0xF8F8FF, // rgb(248,248,255) + gold = 0xFFD700, // rgb(255,215,0) + golden_rod = 0xDAA520, // rgb(218,165,32) + gray = 0x808080, // rgb(128,128,128) + green = 0x008000, // rgb(0,128,0) + green_yellow = 0xADFF2F, // rgb(173,255,47) + honey_dew = 0xF0FFF0, // rgb(240,255,240) + hot_pink = 0xFF69B4, // rgb(255,105,180) + indian_red = 0xCD5C5C, // rgb(205,92,92) + indigo = 0x4B0082, // rgb(75,0,130) + ivory = 0xFFFFF0, // rgb(255,255,240) + khaki = 0xF0E68C, // rgb(240,230,140) + lavender = 0xE6E6FA, // rgb(230,230,250) + lavender_blush = 0xFFF0F5, // rgb(255,240,245) + lawn_green = 0x7CFC00, // rgb(124,252,0) + lemon_chiffon = 0xFFFACD, // rgb(255,250,205) + light_blue = 0xADD8E6, // rgb(173,216,230) + light_coral = 0xF08080, // rgb(240,128,128) + light_cyan = 0xE0FFFF, // rgb(224,255,255) + light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210) + light_gray = 0xD3D3D3, // rgb(211,211,211) + light_green = 0x90EE90, // rgb(144,238,144) + light_pink = 0xFFB6C1, // rgb(255,182,193) + light_salmon = 0xFFA07A, // rgb(255,160,122) + light_sea_green = 0x20B2AA, // rgb(32,178,170) + light_sky_blue = 0x87CEFA, // rgb(135,206,250) + light_slate_gray = 0x778899, // rgb(119,136,153) + light_steel_blue = 0xB0C4DE, // rgb(176,196,222) + light_yellow = 0xFFFFE0, // rgb(255,255,224) + lime = 0x00FF00, // rgb(0,255,0) + lime_green = 0x32CD32, // rgb(50,205,50) + linen = 0xFAF0E6, // rgb(250,240,230) + magenta = 0xFF00FF, // rgb(255,0,255) + maroon = 0x800000, // rgb(128,0,0) + medium_aquamarine = 0x66CDAA, // rgb(102,205,170) + medium_blue = 0x0000CD, // rgb(0,0,205) + medium_orchid = 0xBA55D3, // rgb(186,85,211) + medium_purple = 0x9370DB, // rgb(147,112,219) + medium_sea_green = 0x3CB371, // rgb(60,179,113) + medium_slate_blue = 0x7B68EE, // rgb(123,104,238) + medium_spring_green = 0x00FA9A, // rgb(0,250,154) + medium_turquoise = 0x48D1CC, // rgb(72,209,204) + medium_violet_red = 0xC71585, // rgb(199,21,133) + midnight_blue = 0x191970, // rgb(25,25,112) + mint_cream = 0xF5FFFA, // rgb(245,255,250) + misty_rose = 0xFFE4E1, // rgb(255,228,225) + moccasin = 0xFFE4B5, // rgb(255,228,181) + navajo_white = 0xFFDEAD, // rgb(255,222,173) + navy = 0x000080, // rgb(0,0,128) + old_lace = 0xFDF5E6, // rgb(253,245,230) + olive = 0x808000, // rgb(128,128,0) + olive_drab = 0x6B8E23, // rgb(107,142,35) + orange = 0xFFA500, // rgb(255,165,0) + orange_red = 0xFF4500, // rgb(255,69,0) + orchid = 0xDA70D6, // rgb(218,112,214) + pale_golden_rod = 0xEEE8AA, // rgb(238,232,170) + pale_green = 0x98FB98, // rgb(152,251,152) + pale_turquoise = 0xAFEEEE, // rgb(175,238,238) + pale_violet_red = 0xDB7093, // rgb(219,112,147) + papaya_whip = 0xFFEFD5, // rgb(255,239,213) + peach_puff = 0xFFDAB9, // rgb(255,218,185) + peru = 0xCD853F, // rgb(205,133,63) + pink = 0xFFC0CB, // rgb(255,192,203) + plum = 0xDDA0DD, // rgb(221,160,221) + powder_blue = 0xB0E0E6, // rgb(176,224,230) + purple = 0x800080, // rgb(128,0,128) + rebecca_purple = 0x663399, // rgb(102,51,153) + red = 0xFF0000, // rgb(255,0,0) + rosy_brown = 0xBC8F8F, // rgb(188,143,143) + royal_blue = 0x4169E1, // rgb(65,105,225) + saddle_brown = 0x8B4513, // rgb(139,69,19) + salmon = 0xFA8072, // rgb(250,128,114) + sandy_brown = 0xF4A460, // rgb(244,164,96) + sea_green = 0x2E8B57, // rgb(46,139,87) + sea_shell = 0xFFF5EE, // rgb(255,245,238) + sienna = 0xA0522D, // rgb(160,82,45) + silver = 0xC0C0C0, // rgb(192,192,192) + sky_blue = 0x87CEEB, // rgb(135,206,235) + slate_blue = 0x6A5ACD, // rgb(106,90,205) + slate_gray = 0x708090, // rgb(112,128,144) + snow = 0xFFFAFA, // rgb(255,250,250) + spring_green = 0x00FF7F, // rgb(0,255,127) + steel_blue = 0x4682B4, // rgb(70,130,180) + tan = 0xD2B48C, // rgb(210,180,140) + teal = 0x008080, // rgb(0,128,128) + thistle = 0xD8BFD8, // rgb(216,191,216) + tomato = 0xFF6347, // rgb(255,99,71) + turquoise = 0x40E0D0, // rgb(64,224,208) + violet = 0xEE82EE, // rgb(238,130,238) + wheat = 0xF5DEB3, // rgb(245,222,179) + white = 0xFFFFFF, // rgb(255,255,255) + white_smoke = 0xF5F5F5, // rgb(245,245,245) + yellow = 0xFFFF00, // rgb(255,255,0) + yellow_green = 0x9ACD32 // rgb(154,205,50) +}; // enum class color enum class terminal_color : uint8_t { - black = 30, - red, - green, - yellow, - blue, - magenta, - cyan, - white, - bright_black = 90, - bright_red, - bright_green, - bright_yellow, - bright_blue, - bright_magenta, - bright_cyan, - bright_white + black = 30, + red, + green, + yellow, + blue, + magenta, + cyan, + white, + bright_black = 90, + bright_red, + bright_green, + bright_yellow, + bright_blue, + bright_magenta, + bright_cyan, + bright_white }; enum class emphasis : uint8_t { - bold = 1, - faint = 1 << 1, - italic = 1 << 2, - underline = 1 << 3, - blink = 1 << 4, - reverse = 1 << 5, - conceal = 1 << 6, - strikethrough = 1 << 7, + bold = 1, + faint = 1 << 1, + italic = 1 << 2, + underline = 1 << 3, + blink = 1 << 4, + reverse = 1 << 5, + conceal = 1 << 6, + strikethrough = 1 << 7, }; // rgb is a struct for red, green and blue colors. // Using the name "rgb" makes some editors show the color in a tooltip. struct rgb { - FMT_CONSTEXPR rgb() - : r(0), - g(0), - b(0) {} - FMT_CONSTEXPR rgb(uint8_t r_, uint8_t g_, uint8_t b_) - : r(r_), - g(g_), - b(b_) {} - FMT_CONSTEXPR rgb(uint32_t hex) - : r((hex >> 16) & 0xFF), - g((hex >> 8) & 0xFF), - b(hex & 0xFF) {} - FMT_CONSTEXPR rgb(color hex) - : r((uint32_t(hex) >> 16) & 0xFF), - g((uint32_t(hex) >> 8) & 0xFF), - b(uint32_t(hex) & 0xFF) {} - uint8_t r; - uint8_t g; - uint8_t b; + constexpr rgb() : r(0), g(0), b(0) {} + constexpr rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {} + constexpr rgb(uint32_t hex) + : r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b(hex & 0xFF) {} + constexpr rgb(color hex) + : r((uint32_t(hex) >> 16) & 0xFF), + g((uint32_t(hex) >> 8) & 0xFF), + b(uint32_t(hex) & 0xFF) {} + uint8_t r; + uint8_t g; + uint8_t b; }; -FMT_BEGIN_DETAIL_NAMESPACE +namespace detail { -// color is a struct of either a rgb color or a terminal color. +// A bit-packed variant of an RGB color, a terminal color, or unset color. +// see text_style for the bit-packing scheme. struct color_type { - FMT_CONSTEXPR color_type() noexcept - : is_rgb(), - value{} {} - FMT_CONSTEXPR color_type(color rgb_color) noexcept - : is_rgb(true), - value{} { - value.rgb_color = static_cast(rgb_color); - } - FMT_CONSTEXPR color_type(rgb rgb_color) noexcept - : is_rgb(true), - value{} { - value.rgb_color = (static_cast(rgb_color.r) << 16) | - (static_cast(rgb_color.g) << 8) | rgb_color.b; - } - FMT_CONSTEXPR color_type(terminal_color term_color) noexcept - : is_rgb(), - value{} { - value.term_color = static_cast(term_color); - } - bool is_rgb; - union color_union { - uint8_t term_color; - uint32_t rgb_color; - } value; + constexpr color_type() noexcept = default; + constexpr color_type(color rgb_color) noexcept + : value_(static_cast(rgb_color) | (1 << 24)) {} + constexpr color_type(rgb rgb_color) noexcept + : color_type(static_cast( + (static_cast(rgb_color.r) << 16) | + (static_cast(rgb_color.g) << 8) | rgb_color.b)) {} + constexpr color_type(terminal_color term_color) noexcept + : value_(static_cast(term_color) | (3 << 24)) {} + + constexpr auto is_terminal_color() const noexcept -> bool { + return (value_ & (1 << 25)) != 0; + } + + constexpr auto value() const noexcept -> uint32_t { + return value_ & 0xFFFFFF; + } + + constexpr color_type(uint32_t value) noexcept : value_(value) {} + + uint32_t value_ = 0; }; +} // namespace detail -FMT_END_DETAIL_NAMESPACE - -/** A text style consisting of foreground and background colors and emphasis. */ +/// A text style consisting of foreground and background colors and emphasis. class text_style { -public: - FMT_CONSTEXPR text_style(emphasis em = emphasis()) noexcept - : set_foreground_color(), - set_background_color(), - ems(em) {} - - FMT_CONSTEXPR text_style& operator|=(const text_style& rhs) { - if (!set_foreground_color) { - set_foreground_color = rhs.set_foreground_color; - foreground_color = rhs.foreground_color; - } else if (rhs.set_foreground_color) { - if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb) - FMT_THROW(format_error("can't OR a terminal color")); - foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color; - } - - if (!set_background_color) { - set_background_color = rhs.set_background_color; - background_color = rhs.background_color; - } else if (rhs.set_background_color) { - if (!background_color.is_rgb || !rhs.background_color.is_rgb) - FMT_THROW(format_error("can't OR a terminal color")); - background_color.value.rgb_color |= rhs.background_color.value.rgb_color; - } - - ems = static_cast(static_cast(ems) | static_cast(rhs.ems)); - return *this; - } - - friend FMT_CONSTEXPR text_style operator|(text_style lhs, const text_style& rhs) { - return lhs |= rhs; - } - - FMT_CONSTEXPR bool has_foreground() const noexcept { return set_foreground_color; } - FMT_CONSTEXPR bool has_background() const noexcept { return set_background_color; } - FMT_CONSTEXPR bool has_emphasis() const noexcept { return static_cast(ems) != 0; } - FMT_CONSTEXPR detail::color_type get_foreground() const noexcept { - FMT_ASSERT(has_foreground(), "no foreground specified for this style"); - return foreground_color; - } - FMT_CONSTEXPR detail::color_type get_background() const noexcept { - FMT_ASSERT(has_background(), "no background specified for this style"); - return background_color; - } - FMT_CONSTEXPR emphasis get_emphasis() const noexcept { - FMT_ASSERT(has_emphasis(), "no emphasis specified for this style"); - return ems; - } - -private: - FMT_CONSTEXPR text_style(bool is_foreground, detail::color_type text_color) noexcept - : set_foreground_color(), - set_background_color(), - ems() { - if (is_foreground) { - foreground_color = text_color; - set_foreground_color = true; - } else { - background_color = text_color; - set_background_color = true; - } - } - - friend FMT_CONSTEXPR text_style fg(detail::color_type foreground) noexcept; - - friend FMT_CONSTEXPR text_style bg(detail::color_type background) noexcept; - - detail::color_type foreground_color; - detail::color_type background_color; - bool set_foreground_color; - bool set_background_color; - emphasis ems; + // The information is packed as follows: + // ┌──┐ + // │ 0│─┐ + // │..│ ├── foreground color value + // │23│─┘ + // ├──┤ + // │24│─┬── discriminator for the above value. 00 if unset, 01 if it's + // │25│─┘ an RGB color, or 11 if it's a terminal color (10 is unused) + // ├──┤ + // │26│──── overflow bit, always zero (see below) + // ├──┤ + // │27│─┐ + // │..│ │ + // │50│ │ + // ├──┤ │ + // │51│ ├── background color (same format as the foreground color) + // │52│ │ + // ├──┤ │ + // │53│─┘ + // ├──┤ + // │54│─┐ + // │..│ ├── emphases + // │61│─┘ + // ├──┤ + // │62│─┬── unused + // │63│─┘ + // └──┘ + // The overflow bits are there to make operator|= efficient. + // When ORing, we must throw if, for either the foreground or background, + // one style specifies a terminal color and the other specifies any color + // (terminal or RGB); in other words, if one discriminator is 11 and the + // other is 11 or 01. + // + // We do that check by adding the styles. Consider what adding does to each + // possible pair of discriminators: + // 00 + 00 = 000 + // 01 + 00 = 001 + // 11 + 00 = 011 + // 01 + 01 = 010 + // 11 + 01 = 100 (!!) + // 11 + 11 = 110 (!!) + // In the last two cases, the ones we want to catch, the third bit——the + // overflow bit——is set. Bingo. + // + // We must take into account the possible carry bit from the bits + // before the discriminator. The only potentially problematic case is + // 11 + 00 = 011 (a carry bit would make it 100, not good!), but a carry + // bit is impossible in that case, because 00 (unset color) means the + // 24 bits that precede the discriminator are all zero. + // + // This test can be applied to both colors simultaneously. + + public: + FMT_CONSTEXPR text_style(emphasis em = emphasis()) noexcept + : style_(static_cast(em) << 54) {} + + FMT_CONSTEXPR auto operator|=(text_style rhs) -> text_style& { + if (((style_ + rhs.style_) & ((1ULL << 26) | (1ULL << 53))) != 0) + report_error("can't OR a terminal color"); + style_ |= rhs.style_; + return *this; + } + + friend FMT_CONSTEXPR auto operator|(text_style lhs, text_style rhs) + -> text_style { + return lhs |= rhs; + } + + FMT_CONSTEXPR auto operator==(text_style rhs) const noexcept -> bool { + return style_ == rhs.style_; + } + + FMT_CONSTEXPR auto operator!=(text_style rhs) const noexcept -> bool { + return !(*this == rhs); + } + + FMT_CONSTEXPR auto has_foreground() const noexcept -> bool { + return (style_ & (1 << 24)) != 0; + } + FMT_CONSTEXPR auto has_background() const noexcept -> bool { + return (style_ & (1ULL << 51)) != 0; + } + FMT_CONSTEXPR auto has_emphasis() const noexcept -> bool { + return (style_ >> 54) != 0; + } + FMT_CONSTEXPR auto get_foreground() const noexcept -> detail::color_type { + FMT_ASSERT(has_foreground(), "no foreground specified for this style"); + return style_ & 0x3FFFFFF; + } + FMT_CONSTEXPR auto get_background() const noexcept -> detail::color_type { + FMT_ASSERT(has_background(), "no background specified for this style"); + return (style_ >> 27) & 0x3FFFFFF; + } + FMT_CONSTEXPR auto get_emphasis() const noexcept -> emphasis { + FMT_ASSERT(has_emphasis(), "no emphasis specified for this style"); + return static_cast(style_ >> 54); + } + + private: + FMT_CONSTEXPR text_style(uint64_t style) noexcept : style_(style) {} + + friend FMT_CONSTEXPR auto fg(detail::color_type foreground) noexcept + -> text_style; + + friend FMT_CONSTEXPR auto bg(detail::color_type background) noexcept + -> text_style; + + uint64_t style_ = 0; }; -/** Creates a text style from the foreground (text) color. */ -FMT_CONSTEXPR inline text_style fg(detail::color_type foreground) noexcept { - return text_style(true, foreground); +/// Creates a text style from the foreground (text) color. +FMT_CONSTEXPR inline auto fg(detail::color_type foreground) noexcept + -> text_style { + return foreground.value_; } -/** Creates a text style from the background color. */ -FMT_CONSTEXPR inline text_style bg(detail::color_type background) noexcept { - return text_style(false, background); +/// Creates a text style from the background color. +FMT_CONSTEXPR inline auto bg(detail::color_type background) noexcept + -> text_style { + return static_cast(background.value_) << 27; } -FMT_CONSTEXPR inline text_style operator|(emphasis lhs, emphasis rhs) noexcept { - return text_style(lhs) | rhs; +FMT_CONSTEXPR inline auto operator|(emphasis lhs, emphasis rhs) noexcept + -> text_style { + return text_style(lhs) | rhs; } -FMT_BEGIN_DETAIL_NAMESPACE - -template -struct ansi_color_escape { - FMT_CONSTEXPR ansi_color_escape(detail::color_type text_color, const char* esc) noexcept { - // If we have a terminal color, we need to output another escape code - // sequence. - if (!text_color.is_rgb) { - bool is_background = esc == string_view("\x1b[48;2;"); - uint32_t value = text_color.value.term_color; - // Background ASCII codes are the same as the foreground ones but with - // 10 more. - if (is_background) value += 10u; - - size_t index = 0; - buffer[index++] = static_cast('\x1b'); - buffer[index++] = static_cast('['); - - if (value >= 100u) { - buffer[index++] = static_cast('1'); - value %= 100u; - } - buffer[index++] = static_cast('0' + value / 10u); - buffer[index++] = static_cast('0' + value % 10u); - - buffer[index++] = static_cast('m'); - buffer[index++] = static_cast('\0'); - return; - } - - for (int i = 0; i < 7; i++) { - buffer[i] = static_cast(esc[i]); - } - rgb color(text_color.value.rgb_color); - to_esc(color.r, buffer + 7, ';'); - to_esc(color.g, buffer + 11, ';'); - to_esc(color.b, buffer + 15, 'm'); - buffer[19] = static_cast(0); - } - FMT_CONSTEXPR ansi_color_escape(emphasis em) noexcept { - uint8_t em_codes[num_emphases] = {}; - if (has_emphasis(em, emphasis::bold)) em_codes[0] = 1; - if (has_emphasis(em, emphasis::faint)) em_codes[1] = 2; - if (has_emphasis(em, emphasis::italic)) em_codes[2] = 3; - if (has_emphasis(em, emphasis::underline)) em_codes[3] = 4; - if (has_emphasis(em, emphasis::blink)) em_codes[4] = 5; - if (has_emphasis(em, emphasis::reverse)) em_codes[5] = 7; - if (has_emphasis(em, emphasis::conceal)) em_codes[6] = 8; - if (has_emphasis(em, emphasis::strikethrough)) em_codes[7] = 9; - - size_t index = 0; - for (size_t i = 0; i < num_emphases; ++i) { - if (!em_codes[i]) continue; - buffer[index++] = static_cast('\x1b'); - buffer[index++] = static_cast('['); - buffer[index++] = static_cast('0' + em_codes[i]); - buffer[index++] = static_cast('m'); - } - buffer[index++] = static_cast(0); - } - FMT_CONSTEXPR operator const Char*() const noexcept { return buffer; } - - FMT_CONSTEXPR const Char* begin() const noexcept { return buffer; } - FMT_CONSTEXPR_CHAR_TRAITS const Char* end() const noexcept { - return buffer + std::char_traits::length(buffer); +namespace detail { + +template struct ansi_color_escape { + FMT_CONSTEXPR ansi_color_escape(color_type text_color, + const char* esc) noexcept { + // If we have a terminal color, we need to output another escape code + // sequence. + if (text_color.is_terminal_color()) { + bool is_background = esc == string_view("\x1b[48;2;"); + uint32_t value = text_color.value(); + // Background ASCII codes are the same as the foreground ones but with + // 10 more. + if (is_background) value += 10u; + + size_t index = 0; + buffer[index++] = static_cast('\x1b'); + buffer[index++] = static_cast('['); + + if (value >= 100u) { + buffer[index++] = static_cast('1'); + value %= 100u; + } + buffer[index++] = static_cast('0' + value / 10u); + buffer[index++] = static_cast('0' + value % 10u); + + buffer[index++] = static_cast('m'); + buffer[index++] = static_cast('\0'); + return; } -private: - static constexpr size_t num_emphases = 8; - Char buffer[7u + 3u * num_emphases + 1u]; - - static FMT_CONSTEXPR void to_esc(uint8_t c, Char* out, char delimiter) noexcept { - out[0] = static_cast('0' + c / 100); - out[1] = static_cast('0' + c / 10 % 10); - out[2] = static_cast('0' + c % 10); - out[3] = static_cast(delimiter); + for (int i = 0; i < 7; i++) { + buffer[i] = static_cast(esc[i]); } - static FMT_CONSTEXPR bool has_emphasis(emphasis em, emphasis mask) noexcept { - return static_cast(em) & static_cast(mask); + rgb color(text_color.value()); + to_esc(color.r, buffer + 7, ';'); + to_esc(color.g, buffer + 11, ';'); + to_esc(color.b, buffer + 15, 'm'); + buffer[19] = static_cast(0); + } + FMT_CONSTEXPR ansi_color_escape(emphasis em) noexcept { + uint8_t em_codes[num_emphases] = {}; + if (has_emphasis(em, emphasis::bold)) em_codes[0] = 1; + if (has_emphasis(em, emphasis::faint)) em_codes[1] = 2; + if (has_emphasis(em, emphasis::italic)) em_codes[2] = 3; + if (has_emphasis(em, emphasis::underline)) em_codes[3] = 4; + if (has_emphasis(em, emphasis::blink)) em_codes[4] = 5; + if (has_emphasis(em, emphasis::reverse)) em_codes[5] = 7; + if (has_emphasis(em, emphasis::conceal)) em_codes[6] = 8; + if (has_emphasis(em, emphasis::strikethrough)) em_codes[7] = 9; + + size_t index = 0; + for (size_t i = 0; i < num_emphases; ++i) { + if (!em_codes[i]) continue; + buffer[index++] = static_cast('\x1b'); + buffer[index++] = static_cast('['); + buffer[index++] = static_cast('0' + em_codes[i]); + buffer[index++] = static_cast('m'); } + buffer[index++] = static_cast(0); + } + FMT_CONSTEXPR operator const Char*() const noexcept { return buffer; } + + FMT_CONSTEXPR auto begin() const noexcept -> const Char* { return buffer; } + FMT_CONSTEXPR20 auto end() const noexcept -> const Char* { + return buffer + basic_string_view(buffer).size(); + } + + private: + static constexpr size_t num_emphases = 8; + Char buffer[7u + 3u * num_emphases + 1u]; + + static FMT_CONSTEXPR void to_esc(uint8_t c, Char* out, + char delimiter) noexcept { + out[0] = static_cast('0' + c / 100); + out[1] = static_cast('0' + c / 10 % 10); + out[2] = static_cast('0' + c % 10); + out[3] = static_cast(delimiter); + } + static FMT_CONSTEXPR auto has_emphasis(emphasis em, emphasis mask) noexcept + -> bool { + return static_cast(em) & static_cast(mask); + } }; template -FMT_CONSTEXPR ansi_color_escape make_foreground_color( - detail::color_type foreground) noexcept { - return ansi_color_escape(foreground, "\x1b[38;2;"); -} - -template -FMT_CONSTEXPR ansi_color_escape make_background_color( - detail::color_type background) noexcept { - return ansi_color_escape(background, "\x1b[48;2;"); -} - -template -FMT_CONSTEXPR ansi_color_escape make_emphasis(emphasis em) noexcept { - return ansi_color_escape(em); +FMT_CONSTEXPR auto make_foreground_color(color_type foreground) noexcept + -> ansi_color_escape { + return ansi_color_escape(foreground, "\x1b[38;2;"); } template -inline void fputs(const Char* chars, FILE* stream) { - int result = std::fputs(chars, stream); - if (result < 0) FMT_THROW(system_error(errno, FMT_STRING("cannot write to file"))); -} - -template <> -inline void fputs(const wchar_t* chars, FILE* stream) { - int result = std::fputws(chars, stream); - if (result < 0) FMT_THROW(system_error(errno, FMT_STRING("cannot write to file"))); +FMT_CONSTEXPR auto make_background_color(color_type background) noexcept + -> ansi_color_escape { + return ansi_color_escape(background, "\x1b[48;2;"); } template -inline void reset_color(FILE* stream) { - fputs("\x1b[0m", stream); +FMT_CONSTEXPR auto make_emphasis(emphasis em) noexcept + -> ansi_color_escape { + return ansi_color_escape(em); } -template <> -inline void reset_color(FILE* stream) { - fputs(L"\x1b[0m", stream); +template inline void reset_color(buffer& buffer) { + auto reset_color = string_view("\x1b[0m"); + buffer.append(reset_color.begin(), reset_color.end()); } -template -inline void reset_color(buffer& buffer) { - auto reset_color = string_view("\x1b[0m"); - buffer.append(reset_color.begin(), reset_color.end()); -} - -template -struct styled_arg { - const T& value; - text_style style; +template struct styled_arg : view { + const T& value; + text_style style; + styled_arg(const T& v, text_style s) : value(v), style(s) {} }; template -void vformat_to(buffer& buf, - const text_style& ts, - basic_string_view format_str, - basic_format_args>> args) { - bool has_style = false; - if (ts.has_emphasis()) { - has_style = true; - auto emphasis = detail::make_emphasis(ts.get_emphasis()); - buf.append(emphasis.begin(), emphasis.end()); - } - if (ts.has_foreground()) { - has_style = true; - auto foreground = detail::make_foreground_color(ts.get_foreground()); - buf.append(foreground.begin(), foreground.end()); - } - if (ts.has_background()) { - has_style = true; - auto background = detail::make_background_color(ts.get_background()); - buf.append(background.begin(), background.end()); - } - detail::vformat_to(buf, format_str, args, {}); - if (has_style) detail::reset_color(buf); +void vformat_to(buffer& buf, text_style ts, basic_string_view fmt, + basic_format_args> args) { + if (ts.has_emphasis()) { + auto emphasis = make_emphasis(ts.get_emphasis()); + buf.append(emphasis.begin(), emphasis.end()); + } + if (ts.has_foreground()) { + auto foreground = make_foreground_color(ts.get_foreground()); + buf.append(foreground.begin(), foreground.end()); + } + if (ts.has_background()) { + auto background = make_background_color(ts.get_background()); + buf.append(background.begin(), background.end()); + } + vformat_to(buf, fmt, args); + if (ts != text_style()) reset_color(buf); } +} // namespace detail -FMT_END_DETAIL_NAMESPACE - -template > -void vprint(std::FILE* f, - const text_style& ts, - const S& format, - basic_format_args>> args) { - basic_memory_buffer buf; - detail::vformat_to(buf, ts, detail::to_string_view(format), args); - if (detail::is_utf8()) { - detail::print(f, basic_string_view(buf.begin(), buf.size())); - } else { - buf.push_back(Char(0)); - detail::fputs(buf.data(), f); - } +inline void vprint(FILE* f, text_style ts, string_view fmt, format_args args) { + auto buf = memory_buffer(); + detail::vformat_to(buf, ts, fmt, args); + print(f, FMT_STRING("{}"), string_view(buf.begin(), buf.size())); } /** - \rst - Formats a string and prints it to the specified file stream using ANSI - escape sequences to specify text formatting. - - **Example**:: - - fmt::print(fmt::emphasis::bold | fg(fmt::color::red), - "Elapsed time: {0:.2f} seconds", 1.23); - \endrst + * Formats a string and prints it to the specified file stream using ANSI + * escape sequences to specify text formatting. + * + * **Example**: + * + * fmt::print(fmt::emphasis::bold | fg(fmt::color::red), + * "Elapsed time: {0:.2f} seconds", 1.23); */ -template ::value)> -void print(std::FILE* f, const text_style& ts, const S& format_str, const Args&... args) { - vprint(f, ts, format_str, fmt::make_format_args>>(args...)); +template +void print(FILE* f, text_style ts, format_string fmt, T&&... args) { + vprint(f, ts, fmt.str, vargs{{args...}}); } /** - \rst - Formats a string and prints it to stdout using ANSI escape sequences to - specify text formatting. - - **Example**:: - - fmt::print(fmt::emphasis::bold | fg(fmt::color::red), - "Elapsed time: {0:.2f} seconds", 1.23); - \endrst + * Formats a string and prints it to stdout using ANSI escape sequences to + * specify text formatting. + * + * **Example**: + * + * fmt::print(fmt::emphasis::bold | fg(fmt::color::red), + * "Elapsed time: {0:.2f} seconds", 1.23); */ -template ::value)> -void print(const text_style& ts, const S& format_str, const Args&... args) { - return print(stdout, ts, format_str, args...); +template +void print(text_style ts, format_string fmt, T&&... args) { + return print(stdout, ts, fmt, std::forward(args)...); } -template > -inline std::basic_string vformat( - const text_style& ts, - const S& format_str, - basic_format_args>> args) { - basic_memory_buffer buf; - detail::vformat_to(buf, ts, detail::to_string_view(format_str), args); - return fmt::to_string(buf); +inline auto vformat(text_style ts, string_view fmt, format_args args) + -> std::string { + auto buf = memory_buffer(); + detail::vformat_to(buf, ts, fmt, args); + return fmt::to_string(buf); } /** - \rst - Formats arguments and returns the result as a string using ANSI - escape sequences to specify text formatting. - - **Example**:: - - #include - std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red), - "The answer is {}", 42); - \endrst -*/ -template > -inline std::basic_string format(const text_style& ts, - const S& format_str, - const Args&... args) { - return fmt::vformat(ts, detail::to_string_view(format_str), - fmt::make_format_args>(args...)); + * Formats arguments and returns the result as a string using ANSI escape + * sequences to specify text formatting. + * + * **Example**: + * + * ``` + * #include + * std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red), + * "The answer is {}", 42); + * ``` + */ +template +inline auto format(text_style ts, format_string fmt, T&&... args) + -> std::string { + return fmt::vformat(ts, fmt.str, vargs{{args...}}); } -/** - Formats a string with the given text_style and writes the output to ``out``. - */ +/// Formats a string with the given text_style and writes the output to `out`. template ::value)> -OutputIt vformat_to(OutputIt out, - const text_style& ts, - basic_string_view format_str, - basic_format_args>> args) { - auto&& buf = detail::get_buffer(out); - detail::vformat_to(buf, ts, format_str, args); - return detail::get_iterator(buf); + FMT_ENABLE_IF(detail::is_output_iterator::value)> +auto vformat_to(OutputIt out, text_style ts, string_view fmt, format_args args) + -> OutputIt { + auto&& buf = detail::get_buffer(out); + detail::vformat_to(buf, ts, fmt, args); + return detail::get_iterator(buf, out); } /** - \rst - Formats arguments with the given text_style, writes the result to the output - iterator ``out`` and returns the iterator past the end of the output range. - - **Example**:: - - std::vector out; - fmt::format_to(std::back_inserter(out), - fmt::emphasis::bold | fg(fmt::color::red), "{}", 42); - \endrst -*/ -template >::value&& detail::is_string::value> -inline auto format_to(OutputIt out, const text_style& ts, const S& format_str, Args&&... args) -> - typename std::enable_if::type { - return vformat_to(out, ts, detail::to_string_view(format_str), - fmt::make_format_args>>(args...)); + * Formats arguments with the given text style, writes the result to the output + * iterator `out` and returns the iterator past the end of the output range. + * + * **Example**: + * + * std::vector out; + * fmt::format_to(std::back_inserter(out), + * fmt::emphasis::bold | fg(fmt::color::red), "{}", 42); + */ +template ::value)> +inline auto format_to(OutputIt out, text_style ts, format_string fmt, + T&&... args) -> OutputIt { + return vformat_to(out, ts, fmt.str, vargs{{args...}}); } template struct formatter, Char> : formatter { - template - auto format(const detail::styled_arg& arg, FormatContext& ctx) const -> decltype(ctx.out()) { - const auto& ts = arg.style; - const auto& value = arg.value; - auto out = ctx.out(); - - bool has_style = false; - if (ts.has_emphasis()) { - has_style = true; - auto emphasis = detail::make_emphasis(ts.get_emphasis()); - out = std::copy(emphasis.begin(), emphasis.end(), out); - } - if (ts.has_foreground()) { - has_style = true; - auto foreground = detail::make_foreground_color(ts.get_foreground()); - out = std::copy(foreground.begin(), foreground.end(), out); - } - if (ts.has_background()) { - has_style = true; - auto background = detail::make_background_color(ts.get_background()); - out = std::copy(background.begin(), background.end(), out); - } - out = formatter::format(value, ctx); - if (has_style) { - auto reset_color = string_view("\x1b[0m"); - out = std::copy(reset_color.begin(), reset_color.end(), out); - } - return out; + template + auto format(const detail::styled_arg& arg, FormatContext& ctx) const + -> decltype(ctx.out()) { + const auto& ts = arg.style; + auto out = ctx.out(); + + bool has_style = false; + if (ts.has_emphasis()) { + has_style = true; + auto emphasis = detail::make_emphasis(ts.get_emphasis()); + out = detail::copy(emphasis.begin(), emphasis.end(), out); } + if (ts.has_foreground()) { + has_style = true; + auto foreground = + detail::make_foreground_color(ts.get_foreground()); + out = detail::copy(foreground.begin(), foreground.end(), out); + } + if (ts.has_background()) { + has_style = true; + auto background = + detail::make_background_color(ts.get_background()); + out = detail::copy(background.begin(), background.end(), out); + } + out = formatter::format(arg.value, ctx); + if (has_style) { + auto reset_color = string_view("\x1b[0m"); + out = detail::copy(reset_color.begin(), reset_color.end(), out); + } + return out; + } }; /** - \rst - Returns an argument that will be formatted using ANSI escape sequences, - to be used in a formatting function. - - **Example**:: - - fmt::print("Elapsed time: {0:.2f} seconds", - fmt::styled(1.23, fmt::fg(fmt::color::green) | - fmt::bg(fmt::color::blue))); - \endrst + * Returns an argument that will be formatted using ANSI escape sequences, + * to be used in a formatting function. + * + * **Example**: + * + * fmt::print("Elapsed time: {0:.2f} seconds", + * fmt::styled(1.23, fmt::fg(fmt::color::green) | + * fmt::bg(fmt::color::blue))); */ template -FMT_CONSTEXPR auto styled(const T& value, text_style ts) -> detail::styled_arg> { - return detail::styled_arg>{value, ts}; +FMT_CONSTEXPR auto styled(const T& value, text_style ts) + -> detail::styled_arg> { + return detail::styled_arg>{value, ts}; } -FMT_MODULE_EXPORT_END +FMT_END_EXPORT FMT_END_NAMESPACE #endif // FMT_COLOR_H_ diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/compile.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/compile.h index 663184f88..08d9427ff 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/compile.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/compile.h @@ -8,286 +8,222 @@ #ifndef FMT_COMPILE_H_ #define FMT_COMPILE_H_ +#ifndef FMT_MODULE +# include // std::back_inserter +#endif + #include "format.h" FMT_BEGIN_NAMESPACE -namespace detail { - -template -FMT_CONSTEXPR inline counting_iterator copy_str(InputIt begin, InputIt end, counting_iterator it) { - return it + (end - begin); -} - -template -class truncating_iterator_base { -protected: - OutputIt out_; - size_t limit_; - size_t count_ = 0; - - truncating_iterator_base() - : out_(), - limit_(0) {} - - truncating_iterator_base(OutputIt out, size_t limit) - : out_(out), - limit_(limit) {} - -public: - using iterator_category = std::output_iterator_tag; - using value_type = typename std::iterator_traits::value_type; - using difference_type = std::ptrdiff_t; - using pointer = void; - using reference = void; - FMT_UNCHECKED_ITERATOR(truncating_iterator_base); - - OutputIt base() const { return out_; } - size_t count() const { return count_; } -}; - -// An output iterator that truncates the output and counts the number of objects -// written to it. -template ::value_type>::type> -class truncating_iterator; - -template -class truncating_iterator : public truncating_iterator_base { - mutable typename truncating_iterator_base::value_type blackhole_; - -public: - using value_type = typename truncating_iterator_base::value_type; - - truncating_iterator() = default; - - truncating_iterator(OutputIt out, size_t limit) - : truncating_iterator_base(out, limit) {} - - truncating_iterator& operator++() { - if (this->count_++ < this->limit_) ++this->out_; - return *this; - } - - truncating_iterator operator++(int) { - auto it = *this; - ++*this; - return it; - } - - value_type& operator*() const { return this->count_ < this->limit_ ? *this->out_ : blackhole_; } -}; - -template -class truncating_iterator : public truncating_iterator_base { -public: - truncating_iterator() = default; - - truncating_iterator(OutputIt out, size_t limit) - : truncating_iterator_base(out, limit) {} - - template - truncating_iterator& operator=(T val) { - if (this->count_++ < this->limit_) *this->out_++ = val; - return *this; - } - - truncating_iterator& operator++() { return *this; } - truncating_iterator& operator++(int) { return *this; } - truncating_iterator& operator*() { return *this; } -}; // A compile-time string which is compiled into fast formatting code. -class compiled_string {}; +FMT_EXPORT class compiled_string {}; template struct is_compiled_string : std::is_base_of {}; -/** - \rst - Converts a string literal *s* into a format string that will be parsed at - compile time and converted into efficient formatting code. Requires C++17 - ``constexpr if`` compiler support. - - **Example**:: +namespace detail { - // Converts 42 into std::string using the most efficient method and no - // runtime format string processing. - std::string s = fmt::format(FMT_COMPILE("{}"), 42); - \endrst +/** + * Converts a string literal `s` into a format string that will be parsed at + * compile time and converted into efficient formatting code. Requires C++17 + * `constexpr if` compiler support. + * + * **Example**: + * + * // Converts 42 into std::string using the most efficient method and no + * // runtime format string processing. + * std::string s = fmt::format(FMT_COMPILE("{}"), 42); */ #if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction) - #define FMT_COMPILE(s) FMT_STRING_IMPL(s, fmt::detail::compiled_string, explicit) +# define FMT_COMPILE(s) FMT_STRING_IMPL(s, fmt::compiled_string) #else - #define FMT_COMPILE(s) FMT_STRING(s) -#endif - -#if FMT_USE_NONTYPE_TEMPLATE_ARGS -template Str> -struct udl_compiled_string : compiled_string { - using char_type = Char; - explicit constexpr operator basic_string_view() const { return {Str.data, N - 1}; } -}; +# define FMT_COMPILE(s) FMT_STRING(s) #endif template -const T& first(const T& value, const Tail&...) { - return value; +auto first(const T& value, const Tail&...) -> const T& { + return value; } #if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction) -template -struct type_list {}; +template struct type_list {}; // Returns a reference to the argument at index N from [first, rest...]. template -constexpr const auto& get([[maybe_unused]] const T& first, [[maybe_unused]] const Args&... rest) { - static_assert(N < 1 + sizeof...(Args), "index is out of bounds"); - if constexpr (N == 0) - return first; - else - return detail::get(rest...); +constexpr const auto& get([[maybe_unused]] const T& first, + [[maybe_unused]] const Args&... rest) { + static_assert(N < 1 + sizeof...(Args), "index is out of bounds"); + if constexpr (N == 0) + return first; + else + return detail::get(rest...); +} + +# if FMT_USE_NONTYPE_TEMPLATE_ARGS +template +constexpr auto get_arg_index_by_name(basic_string_view name) -> int { + if constexpr (is_static_named_arg()) { + if (name == T::name) return N; + } + if constexpr (sizeof...(Args) > 0) + return get_arg_index_by_name(name); + (void)name; // Workaround an MSVC bug about "unused" parameter. + return -1; +} +# endif + +template +FMT_CONSTEXPR auto get_arg_index_by_name(basic_string_view name) -> int { +# if FMT_USE_NONTYPE_TEMPLATE_ARGS + if constexpr (sizeof...(Args) > 0) + return get_arg_index_by_name<0, Args...>(name); +# endif + (void)name; + return -1; } template -constexpr int get_arg_index_by_name(basic_string_view name, type_list) { - return get_arg_index_by_name(name); +constexpr int get_arg_index_by_name(basic_string_view name, + type_list) { + return get_arg_index_by_name(name); } -template -struct get_type_impl; +template struct get_type_impl; -template -struct get_type_impl> { - using type = remove_cvref_t(std::declval()...))>; +template struct get_type_impl> { + using type = + remove_cvref_t(std::declval()...))>; }; template using get_type = typename get_type_impl::type; -template -struct is_compiled_format : std::false_type {}; +template struct is_compiled_format : std::false_type {}; -template -struct text { - basic_string_view data; - using char_type = Char; +template struct text { + basic_string_view data; + using char_type = Char; - template - constexpr OutputIt format(OutputIt out, const Args&...) const { - return write(out, data); - } + template + constexpr OutputIt format(OutputIt out, const Args&...) const { + return write(out, data); + } }; template struct is_compiled_format> : std::true_type {}; template -constexpr text make_text(basic_string_view s, size_t pos, size_t size) { - return {{&s[pos], size}}; +constexpr text make_text(basic_string_view s, size_t pos, + size_t size) { + return {{&s[pos], size}}; } -template -struct code_unit { - Char value; - using char_type = Char; +template struct code_unit { + Char value; + using char_type = Char; - template - constexpr OutputIt format(OutputIt out, const Args&...) const { - return write(out, value); - } + template + constexpr OutputIt format(OutputIt out, const Args&...) const { + *out++ = value; + return out; + } }; // This ensures that the argument type is convertible to `const T&`. template constexpr const T& get_arg_checked(const Args&... args) { - const auto& arg = detail::get(args...); - if constexpr (detail::is_named_arg>()) { - return arg.value; - } else { - return arg; - } + const auto& arg = detail::get(args...); + if constexpr (detail::is_named_arg>()) { + return arg.value; + } else { + return arg; + } } template struct is_compiled_format> : std::true_type {}; // A replacement field that refers to argument N. -template -struct field { - using char_type = Char; - - template - constexpr OutputIt format(OutputIt out, const Args&... args) const { - return write(out, get_arg_checked(args...)); +template struct field { + using char_type = Char; + + template + constexpr OutputIt format(OutputIt out, const Args&... args) const { + const T& arg = get_arg_checked(args...); + if constexpr (std::is_convertible>::value) { + auto s = basic_string_view(arg); + return copy(s.begin(), s.end(), out); + } else { + return write(out, arg); } + } }; template struct is_compiled_format> : std::true_type {}; // A replacement field that refers to argument with name. -template -struct runtime_named_field { - using char_type = Char; - basic_string_view name; - - template - constexpr static bool try_format_argument( - OutputIt& out, - // [[maybe_unused]] due to unused-but-set-parameter warning in GCC 7,8,9 - [[maybe_unused]] basic_string_view arg_name, - const T& arg) { - if constexpr (is_named_arg::type>::value) { - if (arg_name == arg.name) { - out = write(out, arg.value); - return true; - } - } - return false; +template struct runtime_named_field { + using char_type = Char; + basic_string_view name; + + template + constexpr static bool try_format_argument( + OutputIt& out, + // [[maybe_unused]] due to unused-but-set-parameter warning in GCC 7,8,9 + [[maybe_unused]] basic_string_view arg_name, const T& arg) { + if constexpr (is_named_arg::type>::value) { + if (arg_name == arg.name) { + out = write(out, arg.value); + return true; + } } - - template - constexpr OutputIt format(OutputIt out, const Args&... args) const { - bool found = (try_format_argument(out, name, args) || ...); - if (!found) { - FMT_THROW(format_error("argument with specified name is not found")); - } - return out; + return false; + } + + template + constexpr OutputIt format(OutputIt out, const Args&... args) const { + bool found = (try_format_argument(out, name, args) || ...); + if (!found) { + FMT_THROW(format_error("argument with specified name is not found")); } + return out; + } }; template struct is_compiled_format> : std::true_type {}; // A replacement field that refers to argument N and has format specifiers. -template -struct spec_field { - using char_type = Char; - formatter fmt; - - template - constexpr FMT_INLINE OutputIt format(OutputIt out, const Args&... args) const { - const auto& vargs = fmt::make_format_args>(args...); - basic_format_context ctx(out, vargs); - return fmt.format(get_arg_checked(args...), ctx); - } +template struct spec_field { + using char_type = Char; + formatter fmt; + + template + constexpr FMT_INLINE OutputIt format(OutputIt out, + const Args&... args) const { + const auto& vargs = + fmt::make_format_args>(args...); + basic_format_context ctx(out, vargs); + return fmt.format(get_arg_checked(args...), ctx); + } }; template struct is_compiled_format> : std::true_type {}; -template -struct concat { - L lhs; - R rhs; - using char_type = typename L::char_type; - - template - constexpr OutputIt format(OutputIt out, const Args&... args) const { - out = lhs.format(out, args...); - return rhs.format(out, args...); - } +template struct concat { + L lhs; + R rhs; + using char_type = typename L::char_type; + + template + constexpr OutputIt format(OutputIt out, const Args&... args) const { + out = lhs.format(out, args...); + return rhs.format(out, args...); + } }; template @@ -295,303 +231,309 @@ struct is_compiled_format> : std::true_type {}; template constexpr concat make_concat(L lhs, R rhs) { - return {lhs, rhs}; + return {lhs, rhs}; } struct unknown_format {}; template constexpr size_t parse_text(basic_string_view str, size_t pos) { - for (size_t size = str.size(); pos != size; ++pos) { - if (str[pos] == '{' || str[pos] == '}') break; - } - return pos; + for (size_t size = str.size(); pos != size; ++pos) { + if (str[pos] == '{' || str[pos] == '}') break; + } + return pos; } template -constexpr auto compile_format_string(S format_str); +constexpr auto compile_format_string(S fmt); template -constexpr auto parse_tail(T head, S format_str) { - if constexpr (POS != basic_string_view(format_str).size()) { - constexpr auto tail = compile_format_string(format_str); - if constexpr (std::is_same, unknown_format>()) - return tail; - else - return make_concat(head, tail); - } else { - return head; - } +constexpr auto parse_tail(T head, S fmt) { + if constexpr (POS != basic_string_view(fmt).size()) { + constexpr auto tail = compile_format_string(fmt); + if constexpr (std::is_same, + unknown_format>()) + return tail; + else + return make_concat(head, tail); + } else { + return head; + } } -template -struct parse_specs_result { - formatter fmt; - size_t end; - int next_arg_id; +template struct parse_specs_result { + formatter fmt; + size_t end; + int next_arg_id; }; -constexpr int manual_indexing_id = -1; +enum { manual_indexing_id = -1 }; template constexpr parse_specs_result parse_specs(basic_string_view str, - size_t pos, - int next_arg_id) { - str.remove_prefix(pos); - auto ctx = compile_parse_context(str, max_value(), nullptr, {}, next_arg_id); - auto f = formatter(); - auto end = f.parse(ctx); - return {f, pos + fmt::detail::to_unsigned(end - str.data()), - next_arg_id == 0 ? manual_indexing_id : ctx.next_arg_id()}; + size_t pos, int next_arg_id) { + str.remove_prefix(pos); + auto ctx = + compile_parse_context(str, max_value(), nullptr, next_arg_id); + auto f = formatter(); + auto end = f.parse(ctx); + return {f, pos + fmt::detail::to_unsigned(end - str.data()), + next_arg_id == 0 ? manual_indexing_id : ctx.next_arg_id()}; } -template -struct arg_id_handler { - arg_ref arg_id; - - constexpr int operator()() { - FMT_ASSERT(false, "handler cannot be used with automatic indexing"); - return 0; - } - constexpr int operator()(int id) { - arg_id = arg_ref(id); - return 0; - } - constexpr int operator()(basic_string_view id) { - arg_id = arg_ref(id); - return 0; - } - - constexpr void on_error(const char* message) { FMT_THROW(format_error(message)); } +template struct arg_id_handler { + arg_id_kind kind; + arg_ref arg_id; + + constexpr int on_auto() { + FMT_ASSERT(false, "handler cannot be used with automatic indexing"); + return 0; + } + constexpr int on_index(int id) { + kind = arg_id_kind::index; + arg_id = arg_ref(id); + return 0; + } + constexpr int on_name(basic_string_view id) { + kind = arg_id_kind::name; + arg_id = arg_ref(id); + return 0; + } }; -template -struct parse_arg_id_result { - arg_ref arg_id; - const Char* arg_id_end; +template struct parse_arg_id_result { + arg_id_kind kind; + arg_ref arg_id; + const Char* arg_id_end; }; template constexpr auto parse_arg_id(const Char* begin, const Char* end) { - auto handler = arg_id_handler{arg_ref{}}; - auto arg_id_end = parse_arg_id(begin, end, handler); - return parse_arg_id_result{handler.arg_id, arg_id_end}; + auto handler = arg_id_handler{arg_id_kind::none, arg_ref{}}; + auto arg_id_end = parse_arg_id(begin, end, handler); + return parse_arg_id_result{handler.kind, handler.arg_id, arg_id_end}; } -template -struct field_type { - using type = remove_cvref_t; +template struct field_type { + using type = remove_cvref_t; }; template struct field_type::value>> { - using type = remove_cvref_t; + using type = remove_cvref_t; }; -template -constexpr auto parse_replacement_field_then_tail(S format_str) { - using char_type = typename S::char_type; - constexpr auto str = basic_string_view(format_str); - constexpr char_type c = END_POS != str.size() ? str[END_POS] : char_type(); - if constexpr (c == '}') { - return parse_tail( - field::type, ARG_INDEX>(), format_str); - } else if constexpr (c != ':') { - FMT_THROW(format_error("expected ':'")); +template +constexpr auto parse_replacement_field_then_tail(S fmt) { + using char_type = typename S::char_type; + constexpr auto str = basic_string_view(fmt); + constexpr char_type c = END_POS != str.size() ? str[END_POS] : char_type(); + if constexpr (c == '}') { + return parse_tail( + field::type, ARG_INDEX>(), fmt); + } else if constexpr (c != ':') { + FMT_THROW(format_error("expected ':'")); + } else { + constexpr auto result = parse_specs::type>( + str, END_POS + 1, NEXT_ID == manual_indexing_id ? 0 : NEXT_ID); + if constexpr (result.end >= str.size() || str[result.end] != '}') { + FMT_THROW(format_error("expected '}'")); + return 0; } else { - constexpr auto result = parse_specs::type>( - str, END_POS + 1, NEXT_ID == manual_indexing_id ? 0 : NEXT_ID); - if constexpr (result.end >= str.size() || str[result.end] != '}') { - FMT_THROW(format_error("expected '}'")); - return 0; - } else { - return parse_tail( - spec_field::type, ARG_INDEX>{result.fmt}, - format_str); - } + return parse_tail( + spec_field::type, ARG_INDEX>{ + result.fmt}, + fmt); } + } } // Compiles a non-empty format string and returns the compiled representation // or unknown_format() on unrecognized input. template -constexpr auto compile_format_string(S format_str) { - using char_type = typename S::char_type; - constexpr auto str = basic_string_view(format_str); - if constexpr (str[POS] == '{') { - if constexpr (POS + 1 == str.size()) - FMT_THROW(format_error("unmatched '{' in format string")); - if constexpr (str[POS + 1] == '{') { - return parse_tail(make_text(str, POS, 1), format_str); - } else if constexpr (str[POS + 1] == '}' || str[POS + 1] == ':') { - static_assert(ID != manual_indexing_id, - "cannot switch from manual to automatic argument indexing"); - constexpr auto next_id = ID != manual_indexing_id ? ID + 1 : manual_indexing_id; - return parse_replacement_field_then_tail, Args, POS + 1, ID, - next_id>(format_str); - } else { - constexpr auto arg_id_result = - parse_arg_id(str.data() + POS + 1, str.data() + str.size()); - constexpr auto arg_id_end_pos = arg_id_result.arg_id_end - str.data(); - constexpr char_type c = - arg_id_end_pos != str.size() ? str[arg_id_end_pos] : char_type(); - static_assert(c == '}' || c == ':', "missing '}' in format string"); - if constexpr (arg_id_result.arg_id.kind == arg_id_kind::index) { - static_assert(ID == manual_indexing_id || ID == 0, - "cannot switch from automatic to manual argument indexing"); - constexpr auto arg_index = arg_id_result.arg_id.val.index; - return parse_replacement_field_then_tail< - get_type, Args, arg_id_end_pos, arg_index, manual_indexing_id>( - format_str); - } else if constexpr (arg_id_result.arg_id.kind == arg_id_kind::name) { - constexpr auto arg_index = - get_arg_index_by_name(arg_id_result.arg_id.val.name, Args{}); - if constexpr (arg_index != invalid_arg_index) { - constexpr auto next_id = ID != manual_indexing_id ? ID + 1 : manual_indexing_id; - return parse_replacement_field_then_tail< - decltype(get_type::value), Args, arg_id_end_pos, arg_index, - next_id>(format_str); - } else { - if constexpr (c == '}') { - return parse_tail( - runtime_named_field{arg_id_result.arg_id.val.name}, - format_str); - } else if constexpr (c == ':') { - return unknown_format(); // no type info for specs parsing - } - } - } - } - } else if constexpr (str[POS] == '}') { - if constexpr (POS + 1 == str.size()) - FMT_THROW(format_error("unmatched '}' in format string")); - return parse_tail(make_text(str, POS, 1), format_str); +constexpr auto compile_format_string(S fmt) { + using char_type = typename S::char_type; + constexpr auto str = basic_string_view(fmt); + if constexpr (str[POS] == '{') { + if constexpr (POS + 1 == str.size()) + FMT_THROW(format_error("unmatched '{' in format string")); + if constexpr (str[POS + 1] == '{') { + return parse_tail(make_text(str, POS, 1), fmt); + } else if constexpr (str[POS + 1] == '}' || str[POS + 1] == ':') { + static_assert(ID != manual_indexing_id, + "cannot switch from manual to automatic argument indexing"); + constexpr auto next_id = + ID != manual_indexing_id ? ID + 1 : manual_indexing_id; + return parse_replacement_field_then_tail, Args, + POS + 1, ID, next_id>(fmt); } else { - constexpr auto end = parse_text(str, POS + 1); - if constexpr (end - POS > 1) { - return parse_tail(make_text(str, POS, end - POS), format_str); - } else { - return parse_tail(code_unit{str[POS]}, format_str); + constexpr auto arg_id_result = + parse_arg_id(str.data() + POS + 1, str.data() + str.size()); + constexpr auto arg_id_end_pos = arg_id_result.arg_id_end - str.data(); + constexpr char_type c = + arg_id_end_pos != str.size() ? str[arg_id_end_pos] : char_type(); + static_assert(c == '}' || c == ':', "missing '}' in format string"); + if constexpr (arg_id_result.kind == arg_id_kind::index) { + static_assert( + ID == manual_indexing_id || ID == 0, + "cannot switch from automatic to manual argument indexing"); + constexpr auto arg_index = arg_id_result.arg_id.index; + return parse_replacement_field_then_tail, + Args, arg_id_end_pos, + arg_index, manual_indexing_id>( + fmt); + } else if constexpr (arg_id_result.kind == arg_id_kind::name) { + constexpr auto arg_index = + get_arg_index_by_name(arg_id_result.arg_id.name, Args{}); + if constexpr (arg_index >= 0) { + constexpr auto next_id = + ID != manual_indexing_id ? ID + 1 : manual_indexing_id; + return parse_replacement_field_then_tail< + decltype(get_type::value), Args, arg_id_end_pos, + arg_index, next_id>(fmt); + } else if constexpr (c == '}') { + return parse_tail( + runtime_named_field{arg_id_result.arg_id.name}, fmt); + } else if constexpr (c == ':') { + return unknown_format(); // no type info for specs parsing } + } } -} - -template ::value)> -constexpr auto compile(S format_str) { - constexpr auto str = basic_string_view(format_str); - if constexpr (str.size() == 0) { - return detail::make_text(str, 0, 0); + } else if constexpr (str[POS] == '}') { + if constexpr (POS + 1 == str.size()) + FMT_THROW(format_error("unmatched '}' in format string")); + return parse_tail(make_text(str, POS, 1), fmt); + } else { + constexpr auto end = parse_text(str, POS + 1); + if constexpr (end - POS > 1) { + return parse_tail(make_text(str, POS, end - POS), fmt); } else { - constexpr auto result = - detail::compile_format_string, 0, 0>(format_str); - return result; + return parse_tail(code_unit{str[POS]}, fmt); } + } +} + +template ::value)> +constexpr auto compile(S fmt) { + constexpr auto str = basic_string_view(fmt); + if constexpr (str.size() == 0) { + return detail::make_text(str, 0, 0); + } else { + constexpr auto result = + detail::compile_format_string, 0, 0>(fmt); + return result; + } } #endif // defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction) } // namespace detail -FMT_MODULE_EXPORT_BEGIN +FMT_BEGIN_EXPORT #if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction) -template ::value)> -FMT_INLINE std::basic_string format(const CompiledFormat& cf, const Args&... args) { - auto s = std::basic_string(); - cf.format(std::back_inserter(s), args...); - return s; +FMT_INLINE std::basic_string format(const CompiledFormat& cf, + const Args&... args) { + auto s = std::basic_string(); + cf.format(std::back_inserter(s), args...); + return s; } -template ::value)> -constexpr FMT_INLINE OutputIt format_to(OutputIt out, - const CompiledFormat& cf, +constexpr FMT_INLINE OutputIt format_to(OutputIt out, const CompiledFormat& cf, const Args&... args) { - return cf.format(out, args...); + return cf.format(out, args...); } -template ::value)> -FMT_INLINE std::basic_string format(const S&, Args&&... args) { - if constexpr (std::is_same::value) { - constexpr auto str = basic_string_view(S()); - if constexpr (str.size() == 2 && str[0] == '{' && str[1] == '}') { - const auto& first = detail::first(args...); - if constexpr (detail::is_named_arg>::value) { - return fmt::to_string(first.value); - } else { - return fmt::to_string(first); - } - } - } - constexpr auto compiled = detail::compile(S()); - if constexpr (std::is_same, detail::unknown_format>()) { - return fmt::format(static_cast>(S()), - std::forward(args)...); - } else { - return fmt::format(compiled, std::forward(args)...); +template ::value)> +FMT_INLINE std::basic_string format(const S&, + Args&&... args) { + if constexpr (std::is_same::value) { + constexpr auto str = basic_string_view(S()); + if constexpr (str.size() == 2 && str[0] == '{' && str[1] == '}') { + const auto& first = detail::first(args...); + if constexpr (detail::is_named_arg< + remove_cvref_t>::value) { + return fmt::to_string(first.value); + } else { + return fmt::to_string(first); + } } + } + constexpr auto compiled = detail::compile(S()); + if constexpr (std::is_same, + detail::unknown_format>()) { + return fmt::format( + static_cast>(S()), + std::forward(args)...); + } else { + return fmt::format(compiled, std::forward(args)...); + } } -template ::value)> +template ::value)> FMT_CONSTEXPR OutputIt format_to(OutputIt out, const S&, Args&&... args) { - constexpr auto compiled = detail::compile(S()); - if constexpr (std::is_same, detail::unknown_format>()) { - return fmt::format_to(out, static_cast>(S()), - std::forward(args)...); - } else { - return fmt::format_to(out, compiled, std::forward(args)...); - } + constexpr auto compiled = detail::compile(S()); + if constexpr (std::is_same, + detail::unknown_format>()) { + return fmt::format_to( + out, static_cast>(S()), + std::forward(args)...); + } else { + return fmt::format_to(out, compiled, std::forward(args)...); + } } #endif -template ::value)> -format_to_n_result format_to_n(OutputIt out, - size_t n, - const S& format_str, - Args&&... args) { - auto it = fmt::format_to(detail::truncating_iterator(out, n), format_str, - std::forward(args)...); - return {it.base(), it.count()}; +template ::value)> +auto format_to_n(OutputIt out, size_t n, const S& fmt, Args&&... args) + -> format_to_n_result { + using traits = detail::fixed_buffer_traits; + auto buf = detail::iterator_buffer(out, n); + fmt::format_to(std::back_inserter(buf), fmt, std::forward(args)...); + return {buf.out(), buf.count()}; } -template ::value)> -FMT_CONSTEXPR20 size_t formatted_size(const S& format_str, const Args&... args) { - return fmt::format_to(detail::counting_iterator(), format_str, args...).count(); +template ::value)> +FMT_CONSTEXPR20 auto formatted_size(const S& fmt, const Args&... args) + -> size_t { + auto buf = detail::counting_buffer<>(); + fmt::format_to(appender(buf), fmt, args...); + return buf.count(); } -template ::value)> -void print(std::FILE* f, const S& format_str, const Args&... args) { - memory_buffer buffer; - fmt::format_to(std::back_inserter(buffer), format_str, args...); - detail::print(f, {buffer.data(), buffer.size()}); +template ::value)> +void print(std::FILE* f, const S& fmt, const Args&... args) { + auto buf = memory_buffer(); + fmt::format_to(appender(buf), fmt, args...); + detail::print(f, {buf.data(), buf.size()}); } -template ::value)> -void print(const S& format_str, const Args&... args) { - print(stdout, format_str, args...); +template ::value)> +void print(const S& fmt, const Args&... args) { + print(stdout, fmt, args...); } #if FMT_USE_NONTYPE_TEMPLATE_ARGS inline namespace literals { -template -constexpr auto operator""_cf() { - using char_t = remove_cvref_t; - return detail::udl_compiled_string(); +template constexpr auto operator""_cf() { + return FMT_COMPILE(Str.data); } } // namespace literals #endif -FMT_MODULE_EXPORT_END +FMT_END_EXPORT FMT_END_NAMESPACE #endif // FMT_COMPILE_H_ diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/core.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/core.h index d2cbeecbd..8ca735f0c 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/core.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/core.h @@ -1,3297 +1,5 @@ -// Formatting library for C++ - the core API for char/UTF-8 -// -// Copyright (c) 2012 - present, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. +// This file is only provided for compatibility and may be removed in future +// versions. Use fmt/base.h if you don't need fmt::format and fmt/format.h +// otherwise. -#ifndef FMT_CORE_H_ -#define FMT_CORE_H_ - -#include // std::byte -#include // std::FILE -#include // std::strlen -#include -#include -#include -#include - -// The fmt library version in the form major * 10000 + minor * 100 + patch. -#define FMT_VERSION 90100 - -#if defined(__clang__) && !defined(__ibmxl__) - #define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__) -#else - #define FMT_CLANG_VERSION 0 -#endif - -#if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER) && !defined(__NVCOMPILER) - #define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) -#else - #define FMT_GCC_VERSION 0 -#endif - -#ifndef FMT_GCC_PRAGMA - // Workaround _Pragma bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59884. - #if FMT_GCC_VERSION >= 504 - #define FMT_GCC_PRAGMA(arg) _Pragma(arg) - #else - #define FMT_GCC_PRAGMA(arg) - #endif -#endif - -#ifdef __ICL - #define FMT_ICC_VERSION __ICL -#elif defined(__INTEL_COMPILER) - #define FMT_ICC_VERSION __INTEL_COMPILER -#else - #define FMT_ICC_VERSION 0 -#endif - -#ifdef _MSC_VER - #define FMT_MSC_VERSION _MSC_VER - #define FMT_MSC_WARNING(...) __pragma(warning(__VA_ARGS__)) -#else - #define FMT_MSC_VERSION 0 - #define FMT_MSC_WARNING(...) -#endif - -#ifdef _MSVC_LANG - #define FMT_CPLUSPLUS _MSVC_LANG -#else - #define FMT_CPLUSPLUS __cplusplus -#endif - -#ifdef __has_feature - #define FMT_HAS_FEATURE(x) __has_feature(x) -#else - #define FMT_HAS_FEATURE(x) 0 -#endif - -#if (defined(__has_include) || FMT_ICC_VERSION >= 1600 || FMT_MSC_VERSION > 1900) && \ - !defined(__INTELLISENSE__) - #define FMT_HAS_INCLUDE(x) __has_include(x) -#else - #define FMT_HAS_INCLUDE(x) 0 -#endif - -#ifdef __has_cpp_attribute - #define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) -#else - #define FMT_HAS_CPP_ATTRIBUTE(x) 0 -#endif - -#define FMT_HAS_CPP14_ATTRIBUTE(attribute) \ - (FMT_CPLUSPLUS >= 201402L && FMT_HAS_CPP_ATTRIBUTE(attribute)) - -#define FMT_HAS_CPP17_ATTRIBUTE(attribute) \ - (FMT_CPLUSPLUS >= 201703L && FMT_HAS_CPP_ATTRIBUTE(attribute)) - -// Check if relaxed C++14 constexpr is supported. -// GCC doesn't allow throw in constexpr until version 6 (bug 67371). -#ifndef FMT_USE_CONSTEXPR - #if (FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VERSION >= 1912 || \ - (FMT_GCC_VERSION >= 600 && FMT_CPLUSPLUS >= 201402L)) && \ - !FMT_ICC_VERSION && !defined(__NVCC__) - #define FMT_USE_CONSTEXPR 1 - #else - #define FMT_USE_CONSTEXPR 0 - #endif -#endif -#if FMT_USE_CONSTEXPR - #define FMT_CONSTEXPR constexpr -#else - #define FMT_CONSTEXPR -#endif - -#if ((FMT_CPLUSPLUS >= 202002L) && (!defined(_GLIBCXX_RELEASE) || _GLIBCXX_RELEASE > 9)) || \ - (FMT_CPLUSPLUS >= 201709L && FMT_GCC_VERSION >= 1002) - #define FMT_CONSTEXPR20 constexpr -#else - #define FMT_CONSTEXPR20 -#endif - -// Check if constexpr std::char_traits<>::{compare,length} are supported. -#if defined(__GLIBCXX__) - #if FMT_CPLUSPLUS >= 201703L && defined(_GLIBCXX_RELEASE) && \ - _GLIBCXX_RELEASE >= 7 // GCC 7+ libstdc++ has _GLIBCXX_RELEASE. - #define FMT_CONSTEXPR_CHAR_TRAITS constexpr - #endif -#elif defined(_LIBCPP_VERSION) && FMT_CPLUSPLUS >= 201703L && _LIBCPP_VERSION >= 4000 - #define FMT_CONSTEXPR_CHAR_TRAITS constexpr -#elif FMT_MSC_VERSION >= 1914 && FMT_CPLUSPLUS >= 201703L - #define FMT_CONSTEXPR_CHAR_TRAITS constexpr -#endif -#ifndef FMT_CONSTEXPR_CHAR_TRAITS - #define FMT_CONSTEXPR_CHAR_TRAITS -#endif - -// Check if exceptions are disabled. -#ifndef FMT_EXCEPTIONS - #if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (FMT_MSC_VERSION && !_HAS_EXCEPTIONS) - #define FMT_EXCEPTIONS 0 - #else - #define FMT_EXCEPTIONS 1 - #endif -#endif - -#ifndef FMT_DEPRECATED - #if FMT_HAS_CPP14_ATTRIBUTE(deprecated) || FMT_MSC_VERSION >= 1900 - #define FMT_DEPRECATED [[deprecated]] - #else - #if (defined(__GNUC__) && !defined(__LCC__)) || defined(__clang__) - #define FMT_DEPRECATED __attribute__((deprecated)) - #elif FMT_MSC_VERSION - #define FMT_DEPRECATED __declspec(deprecated) - #else - #define FMT_DEPRECATED /* deprecated */ - #endif - #endif -#endif - -// [[noreturn]] is disabled on MSVC and NVCC because of bogus unreachable code -// warnings. -#if FMT_EXCEPTIONS && FMT_HAS_CPP_ATTRIBUTE(noreturn) && !FMT_MSC_VERSION && !defined(__NVCC__) - #define FMT_NORETURN [[noreturn]] -#else - #define FMT_NORETURN -#endif - -#if FMT_HAS_CPP17_ATTRIBUTE(fallthrough) - #define FMT_FALLTHROUGH [[fallthrough]] -#elif defined(__clang__) - #define FMT_FALLTHROUGH [[clang::fallthrough]] -#elif FMT_GCC_VERSION >= 700 && (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= 520) - #define FMT_FALLTHROUGH [[gnu::fallthrough]] -#else - #define FMT_FALLTHROUGH -#endif - -#ifndef FMT_NODISCARD - #if FMT_HAS_CPP17_ATTRIBUTE(nodiscard) - #define FMT_NODISCARD [[nodiscard]] - #else - #define FMT_NODISCARD - #endif -#endif - -#ifndef FMT_USE_FLOAT - #define FMT_USE_FLOAT 1 -#endif -#ifndef FMT_USE_DOUBLE - #define FMT_USE_DOUBLE 1 -#endif -#ifndef FMT_USE_LONG_DOUBLE - #define FMT_USE_LONG_DOUBLE 1 -#endif - -#ifndef FMT_INLINE - #if FMT_GCC_VERSION || FMT_CLANG_VERSION - #define FMT_INLINE inline __attribute__((always_inline)) - #else - #define FMT_INLINE inline - #endif -#endif - -// An inline std::forward replacement. -#define FMT_FORWARD(...) static_cast(__VA_ARGS__) - -#ifdef _MSC_VER - #define FMT_UNCHECKED_ITERATOR(It) using _Unchecked_type = It // Mark iterator as checked. -#else - #define FMT_UNCHECKED_ITERATOR(It) using unchecked_type = It -#endif - -#ifndef FMT_BEGIN_NAMESPACE - #define FMT_BEGIN_NAMESPACE \ - namespace fmt { \ - inline namespace v9 { - #define FMT_END_NAMESPACE \ - } \ - } -#endif - -#ifndef FMT_MODULE_EXPORT - #define FMT_MODULE_EXPORT - #define FMT_MODULE_EXPORT_BEGIN - #define FMT_MODULE_EXPORT_END - #define FMT_BEGIN_DETAIL_NAMESPACE namespace detail { - #define FMT_END_DETAIL_NAMESPACE } -#endif - -#if !defined(FMT_HEADER_ONLY) && defined(_WIN32) - #define FMT_CLASS_API FMT_MSC_WARNING(suppress : 4275) - #ifdef FMT_EXPORT - #define FMT_API __declspec(dllexport) - #elif defined(FMT_SHARED) - #define FMT_API __declspec(dllimport) - #endif -#else - #define FMT_CLASS_API - #if defined(FMT_EXPORT) || defined(FMT_SHARED) - #if defined(__GNUC__) || defined(__clang__) - #define FMT_API __attribute__((visibility("default"))) - #endif - #endif -#endif -#ifndef FMT_API - #define FMT_API -#endif - -// libc++ supports string_view in pre-c++17. -#if FMT_HAS_INCLUDE() && (FMT_CPLUSPLUS >= 201703L || defined(_LIBCPP_VERSION)) - #include - #define FMT_USE_STRING_VIEW -#elif FMT_HAS_INCLUDE("experimental/string_view") && FMT_CPLUSPLUS >= 201402L - #include - #define FMT_USE_EXPERIMENTAL_STRING_VIEW -#endif - -#ifndef FMT_UNICODE - #define FMT_UNICODE !FMT_MSC_VERSION -#endif - -#ifndef FMT_CONSTEVAL - #if ((FMT_GCC_VERSION >= 1000 || FMT_CLANG_VERSION >= 1101) && FMT_CPLUSPLUS >= 202002L && \ - !defined(__apple_build_version__)) || \ - (defined(__cpp_consteval) && (!FMT_MSC_VERSION || _MSC_FULL_VER >= 193030704)) - // consteval is broken in MSVC before VS2022 and Apple clang 13. - #define FMT_CONSTEVAL consteval - #define FMT_HAS_CONSTEVAL - #else - #define FMT_CONSTEVAL - #endif -#endif - -#ifndef FMT_USE_NONTYPE_TEMPLATE_ARGS - #if defined(__cpp_nontype_template_args) && \ - ((FMT_GCC_VERSION >= 903 && FMT_CPLUSPLUS >= 201709L) || \ - __cpp_nontype_template_args >= 201911L) && \ - !defined(__NVCOMPILER) - #define FMT_USE_NONTYPE_TEMPLATE_ARGS 1 - #else - #define FMT_USE_NONTYPE_TEMPLATE_ARGS 0 - #endif -#endif - -// Enable minimal optimizations for more compact code in debug mode. -FMT_GCC_PRAGMA("GCC push_options") -#if !defined(__OPTIMIZE__) && !defined(__NVCOMPILER) -FMT_GCC_PRAGMA("GCC optimize(\"Og\")") -#endif - -FMT_BEGIN_NAMESPACE -FMT_MODULE_EXPORT_BEGIN - -// Implementations of enable_if_t and other metafunctions for older systems. -template -using enable_if_t = typename std::enable_if::type; -template -using conditional_t = typename std::conditional::type; -template -using bool_constant = std::integral_constant; -template -using remove_reference_t = typename std::remove_reference::type; -template -using remove_const_t = typename std::remove_const::type; -template -using remove_cvref_t = typename std::remove_cv>::type; -template -struct type_identity { - using type = T; -}; -template -using type_identity_t = typename type_identity::type; -template -using underlying_t = typename std::underlying_type::type; - -template -struct disjunction : std::false_type {}; -template -struct disjunction

: P {}; -template -struct disjunction : conditional_t> {}; - -template -struct conjunction : std::true_type {}; -template -struct conjunction

: P {}; -template -struct conjunction : conditional_t, P1> {}; - -struct monostate { - constexpr monostate() {} -}; - -// An enable_if helper to be used in template parameters which results in much -// shorter symbols: https://godbolt.org/z/sWw4vP. Extra parentheses are needed -// to workaround a bug in MSVC 2019 (see #1140 and #1186). -#ifdef FMT_DOC - #define FMT_ENABLE_IF(...) -#else - #define FMT_ENABLE_IF(...) enable_if_t<(__VA_ARGS__), int> = 0 -#endif - -FMT_BEGIN_DETAIL_NAMESPACE - -// Suppresses "unused variable" warnings with the method described in -// https://herbsutter.com/2009/10/18/mailbag-shutting-up-compiler-warnings/. -// (void)var does not work on many Intel compilers. -template -FMT_CONSTEXPR void ignore_unused(const T&...) {} - -constexpr FMT_INLINE auto is_constant_evaluated(bool default_value = false) noexcept -> bool { -#ifdef __cpp_lib_is_constant_evaluated - ignore_unused(default_value); - return std::is_constant_evaluated(); -#else - return default_value; -#endif -} - -// Suppresses "conditional expression is constant" warnings. -template -constexpr FMT_INLINE auto const_check(T value) -> T { - return value; -} - -FMT_NORETURN FMT_API void assert_fail(const char* file, int line, const char* message); - -#ifndef FMT_ASSERT - #ifdef NDEBUG - // FMT_ASSERT is not empty to avoid -Wempty-body. - #define FMT_ASSERT(condition, message) ::fmt::detail::ignore_unused((condition), (message)) - #else - #define FMT_ASSERT(condition, message) \ - ((condition) /* void() fails with -Winvalid-constexpr on clang 4.0.1 */ \ - ? (void)0 \ - : ::fmt::detail::assert_fail(__FILE__, __LINE__, (message))) - #endif -#endif - -#if defined(FMT_USE_STRING_VIEW) -template -using std_string_view = std::basic_string_view; -#elif defined(FMT_USE_EXPERIMENTAL_STRING_VIEW) -template -using std_string_view = std::experimental::basic_string_view; -#else -template -struct std_string_view {}; -#endif - -#ifdef FMT_USE_INT128 -// Do nothing. -#elif defined(__SIZEOF_INT128__) && !defined(__NVCC__) && !(FMT_CLANG_VERSION && FMT_MSC_VERSION) - #define FMT_USE_INT128 1 -using int128_opt = __int128_t; // An optional native 128-bit integer. -using uint128_opt = __uint128_t; -template -inline auto convert_for_visit(T value) -> T { - return value; -} -#else - #define FMT_USE_INT128 0 -#endif -#if !FMT_USE_INT128 -enum class int128_opt {}; -enum class uint128_opt {}; -// Reduce template instantiations. -template -auto convert_for_visit(T) -> monostate { - return {}; -} -#endif - -// Casts a nonnegative integer to unsigned. -template -FMT_CONSTEXPR auto to_unsigned(Int value) -> typename std::make_unsigned::type { - FMT_ASSERT(std::is_unsigned::value || value >= 0, "negative value"); - return static_cast::type>(value); -} - -FMT_MSC_WARNING(suppress : 4566) constexpr unsigned char micro[] = "\u00B5"; - -constexpr auto is_utf8() -> bool { - // Avoid buggy sign extensions in MSVC's constant evaluation mode (#2297). - using uchar = unsigned char; - return FMT_UNICODE || - (sizeof(micro) == 3 && uchar(micro[0]) == 0xC2 && uchar(micro[1]) == 0xB5); -} -FMT_END_DETAIL_NAMESPACE - -/** - An implementation of ``std::basic_string_view`` for pre-C++17. It provides a - subset of the API. ``fmt::basic_string_view`` is used for format strings even - if ``std::string_view`` is available to prevent issues when a library is - compiled with a different ``-std`` option than the client code (which is not - recommended). - */ -template -class basic_string_view { -private: - const Char* data_; - size_t size_; - -public: - using value_type = Char; - using iterator = const Char*; - - constexpr basic_string_view() noexcept - : data_(nullptr), - size_(0) {} - - /** Constructs a string reference object from a C string and a size. */ - constexpr basic_string_view(const Char* s, size_t count) noexcept - : data_(s), - size_(count) {} - - /** - \rst - Constructs a string reference object from a C string computing - the size with ``std::char_traits::length``. - \endrst - */ - FMT_CONSTEXPR_CHAR_TRAITS - FMT_INLINE - basic_string_view(const Char* s) - : data_(s), - size_(detail::const_check(std::is_same::value && - !detail::is_constant_evaluated(true)) - ? std::strlen(reinterpret_cast(s)) - : std::char_traits::length(s)) {} - - /** Constructs a string reference from a ``std::basic_string`` object. */ - template - FMT_CONSTEXPR basic_string_view(const std::basic_string& s) noexcept - : data_(s.data()), - size_(s.size()) {} - - template >::value)> - FMT_CONSTEXPR basic_string_view(S s) noexcept - : data_(s.data()), - size_(s.size()) {} - - /** Returns a pointer to the string data. */ - constexpr auto data() const noexcept -> const Char* { return data_; } - - /** Returns the string size. */ - constexpr auto size() const noexcept -> size_t { return size_; } - - constexpr auto begin() const noexcept -> iterator { return data_; } - constexpr auto end() const noexcept -> iterator { return data_ + size_; } - - constexpr auto operator[](size_t pos) const noexcept -> const Char& { return data_[pos]; } - - FMT_CONSTEXPR void remove_prefix(size_t n) noexcept { - data_ += n; - size_ -= n; - } - - // Lexicographically compare this string reference to other. - FMT_CONSTEXPR_CHAR_TRAITS auto compare(basic_string_view other) const -> int { - size_t str_size = size_ < other.size_ ? size_ : other.size_; - int result = std::char_traits::compare(data_, other.data_, str_size); - if (result == 0) result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); - return result; - } - - FMT_CONSTEXPR_CHAR_TRAITS friend auto operator==(basic_string_view lhs, basic_string_view rhs) - -> bool { - return lhs.compare(rhs) == 0; - } - friend auto operator!=(basic_string_view lhs, basic_string_view rhs) -> bool { - return lhs.compare(rhs) != 0; - } - friend auto operator<(basic_string_view lhs, basic_string_view rhs) -> bool { - return lhs.compare(rhs) < 0; - } - friend auto operator<=(basic_string_view lhs, basic_string_view rhs) -> bool { - return lhs.compare(rhs) <= 0; - } - friend auto operator>(basic_string_view lhs, basic_string_view rhs) -> bool { - return lhs.compare(rhs) > 0; - } - friend auto operator>=(basic_string_view lhs, basic_string_view rhs) -> bool { - return lhs.compare(rhs) >= 0; - } -}; - -using string_view = basic_string_view; - -/** Specifies if ``T`` is a character type. Can be specialized by users. */ -template -struct is_char : std::false_type {}; -template <> -struct is_char : std::true_type {}; - -FMT_BEGIN_DETAIL_NAMESPACE - -// A base class for compile-time strings. -struct compile_string {}; - -template -struct is_compile_string : std::is_base_of {}; - -// Returns a string view of `s`. -template ::value)> -FMT_INLINE auto to_string_view(const Char* s) -> basic_string_view { - return s; -} -template -inline auto to_string_view(const std::basic_string& s) - -> basic_string_view { - return s; -} -template -constexpr auto to_string_view(basic_string_view s) -> basic_string_view { - return s; -} -template >::value)> -inline auto to_string_view(std_string_view s) -> basic_string_view { - return s; -} -template ::value)> -constexpr auto to_string_view(const S& s) -> basic_string_view { - return basic_string_view(s); -} -void to_string_view(...); - -// Specifies whether S is a string type convertible to fmt::basic_string_view. -// It should be a constexpr function but MSVC 2017 fails to compile it in -// enable_if and MSVC 2015 fails to compile it as an alias template. -// ADL invocation of to_string_view is DEPRECATED! -template -struct is_string : std::is_class()))> {}; - -template -struct char_t_impl {}; -template -struct char_t_impl::value>> { - using result = decltype(to_string_view(std::declval())); - using type = typename result::value_type; -}; - -enum class type { - none_type, - // Integer types should go first, - int_type, - uint_type, - long_long_type, - ulong_long_type, - int128_type, - uint128_type, - bool_type, - char_type, - last_integer_type = char_type, - // followed by floating-point types. - float_type, - double_type, - long_double_type, - last_numeric_type = long_double_type, - cstring_type, - string_type, - pointer_type, - custom_type -}; - -// Maps core type T to the corresponding type enum constant. -template -struct type_constant : std::integral_constant {}; - -#define FMT_TYPE_CONSTANT(Type, constant) \ - template \ - struct type_constant : std::integral_constant {} - -FMT_TYPE_CONSTANT(int, int_type); -FMT_TYPE_CONSTANT(unsigned, uint_type); -FMT_TYPE_CONSTANT(long long, long_long_type); -FMT_TYPE_CONSTANT(unsigned long long, ulong_long_type); -FMT_TYPE_CONSTANT(int128_opt, int128_type); -FMT_TYPE_CONSTANT(uint128_opt, uint128_type); -FMT_TYPE_CONSTANT(bool, bool_type); -FMT_TYPE_CONSTANT(Char, char_type); -FMT_TYPE_CONSTANT(float, float_type); -FMT_TYPE_CONSTANT(double, double_type); -FMT_TYPE_CONSTANT(long double, long_double_type); -FMT_TYPE_CONSTANT(const Char*, cstring_type); -FMT_TYPE_CONSTANT(basic_string_view, string_type); -FMT_TYPE_CONSTANT(const void*, pointer_type); - -constexpr bool is_integral_type(type t) { - return t > type::none_type && t <= type::last_integer_type; -} - -constexpr bool is_arithmetic_type(type t) { - return t > type::none_type && t <= type::last_numeric_type; -} - -FMT_NORETURN FMT_API void throw_format_error(const char* message); - -struct error_handler { - constexpr error_handler() = default; - constexpr error_handler(const error_handler&) = default; - - // This function is intentionally not constexpr to give a compile-time error. - FMT_NORETURN void on_error(const char* message) { throw_format_error(message); } -}; -FMT_END_DETAIL_NAMESPACE - -/** String's character type. */ -template -using char_t = typename detail::char_t_impl::type; - -/** - \rst - Parsing context consisting of a format string range being parsed and an - argument counter for automatic indexing. - You can use the ``format_parse_context`` type alias for ``char`` instead. - \endrst - */ -template -class basic_format_parse_context : private ErrorHandler { -private: - basic_string_view format_str_; - int next_arg_id_; - - FMT_CONSTEXPR void do_check_arg_id(int id); - -public: - using char_type = Char; - using iterator = typename basic_string_view::iterator; - - explicit constexpr basic_format_parse_context(basic_string_view format_str, - ErrorHandler eh = {}, - int next_arg_id = 0) - : ErrorHandler(eh), - format_str_(format_str), - next_arg_id_(next_arg_id) {} - - /** - Returns an iterator to the beginning of the format string range being - parsed. - */ - constexpr auto begin() const noexcept -> iterator { return format_str_.begin(); } - - /** - Returns an iterator past the end of the format string range being parsed. - */ - constexpr auto end() const noexcept -> iterator { return format_str_.end(); } - - /** Advances the begin iterator to ``it``. */ - FMT_CONSTEXPR void advance_to(iterator it) { - format_str_.remove_prefix(detail::to_unsigned(it - begin())); - } - - /** - Reports an error if using the manual argument indexing; otherwise returns - the next argument index and switches to the automatic indexing. - */ - FMT_CONSTEXPR auto next_arg_id() -> int { - if (next_arg_id_ < 0) { - on_error("cannot switch from manual to automatic argument indexing"); - return 0; - } - int id = next_arg_id_++; - do_check_arg_id(id); - return id; - } - - /** - Reports an error if using the automatic argument indexing; otherwise - switches to the manual indexing. - */ - FMT_CONSTEXPR void check_arg_id(int id) { - if (next_arg_id_ > 0) { - on_error("cannot switch from automatic to manual argument indexing"); - return; - } - next_arg_id_ = -1; - do_check_arg_id(id); - } - FMT_CONSTEXPR void check_arg_id(basic_string_view) {} - FMT_CONSTEXPR void check_dynamic_spec(int arg_id); - - FMT_CONSTEXPR void on_error(const char* message) { ErrorHandler::on_error(message); } - - constexpr auto error_handler() const -> ErrorHandler { return *this; } -}; - -using format_parse_context = basic_format_parse_context; - -FMT_BEGIN_DETAIL_NAMESPACE -// A parse context with extra data used only in compile-time checks. -template -class compile_parse_context : public basic_format_parse_context { -private: - int num_args_; - const type* types_; - using base = basic_format_parse_context; - -public: - explicit FMT_CONSTEXPR compile_parse_context(basic_string_view format_str, - int num_args, - const type* types, - ErrorHandler eh = {}, - int next_arg_id = 0) - : base(format_str, eh, next_arg_id), - num_args_(num_args), - types_(types) {} - - constexpr auto num_args() const -> int { return num_args_; } - constexpr auto arg_type(int id) const -> type { return types_[id]; } - - FMT_CONSTEXPR auto next_arg_id() -> int { - int id = base::next_arg_id(); - if (id >= num_args_) this->on_error("argument not found"); - return id; - } - - FMT_CONSTEXPR void check_arg_id(int id) { - base::check_arg_id(id); - if (id >= num_args_) this->on_error("argument not found"); - } - using base::check_arg_id; - - FMT_CONSTEXPR void check_dynamic_spec(int arg_id) { - if (arg_id < num_args_ && types_ && !is_integral_type(types_[arg_id])) - this->on_error("width/precision is not integer"); - } -}; -FMT_END_DETAIL_NAMESPACE - -template -FMT_CONSTEXPR void basic_format_parse_context::do_check_arg_id(int id) { - // Argument id is only checked at compile-time during parsing because - // formatting has its own validation. - if (detail::is_constant_evaluated() && FMT_GCC_VERSION >= 1200) { - using context = detail::compile_parse_context; - if (id >= static_cast(this)->num_args()) on_error("argument not found"); - } -} - -template -FMT_CONSTEXPR void basic_format_parse_context::check_dynamic_spec(int arg_id) { - if (detail::is_constant_evaluated()) { - using context = detail::compile_parse_context; - static_cast(this)->check_dynamic_spec(arg_id); - } -} - -template -class basic_format_arg; -template -class basic_format_args; -template -class dynamic_format_arg_store; - -// A formatter for objects of type T. -template -struct formatter { - // A deleted default constructor indicates a disabled formatter. - formatter() = delete; -}; - -// Specifies if T has an enabled formatter specialization. A type can be -// formattable even if it doesn't have a formatter e.g. via a conversion. -template -using has_formatter = std::is_constructible>; - -// Checks whether T is a container with contiguous storage. -template -struct is_contiguous : std::false_type {}; -template -struct is_contiguous> : std::true_type {}; - -class appender; - -FMT_BEGIN_DETAIL_NAMESPACE - -template -constexpr auto has_const_formatter_impl(T*) - -> decltype(typename Context::template formatter_type().format(std::declval(), - std::declval()), - true) { - return true; -} -template -constexpr auto has_const_formatter_impl(...) -> bool { - return false; -} -template -constexpr auto has_const_formatter() -> bool { - return has_const_formatter_impl(static_cast(nullptr)); -} - -// Extracts a reference to the container from back_insert_iterator. -template -inline auto get_container(std::back_insert_iterator it) -> Container& { - using base = std::back_insert_iterator; - struct accessor : base { - accessor(base b) - : base(b) {} - using base::container; - }; - return *accessor(it).container; -} - -template -FMT_CONSTEXPR auto copy_str(InputIt begin, InputIt end, OutputIt out) -> OutputIt { - while (begin != end) *out++ = static_cast(*begin++); - return out; -} - -template , U>::value&& is_char::value)> -FMT_CONSTEXPR auto copy_str(T* begin, T* end, U* out) -> U* { - if (is_constant_evaluated()) return copy_str(begin, end, out); - auto size = to_unsigned(end - begin); - memcpy(out, begin, size * sizeof(U)); - return out + size; -} - -/** - \rst - A contiguous memory buffer with an optional growing ability. It is an internal - class and shouldn't be used directly, only via `~fmt::basic_memory_buffer`. - \endrst - */ -template -class buffer { -private: - T* ptr_; - size_t size_; - size_t capacity_; - -protected: - // Don't initialize ptr_ since it is not accessed to save a few cycles. - FMT_MSC_WARNING(suppress : 26495) - buffer(size_t sz) noexcept - : size_(sz), - capacity_(sz) {} - - FMT_CONSTEXPR20 buffer(T* p = nullptr, size_t sz = 0, size_t cap = 0) noexcept - : ptr_(p), - size_(sz), - capacity_(cap) {} - - FMT_CONSTEXPR20 ~buffer() = default; - buffer(buffer&&) = default; - - /** Sets the buffer data and capacity. */ - FMT_CONSTEXPR void set(T* buf_data, size_t buf_capacity) noexcept { - ptr_ = buf_data; - capacity_ = buf_capacity; - } - - /** Increases the buffer capacity to hold at least *capacity* elements. */ - virtual FMT_CONSTEXPR20 void grow(size_t capacity) = 0; - -public: - using value_type = T; - using const_reference = const T&; - - buffer(const buffer&) = delete; - void operator=(const buffer&) = delete; - - auto begin() noexcept -> T* { return ptr_; } - auto end() noexcept -> T* { return ptr_ + size_; } - - auto begin() const noexcept -> const T* { return ptr_; } - auto end() const noexcept -> const T* { return ptr_ + size_; } - - /** Returns the size of this buffer. */ - constexpr auto size() const noexcept -> size_t { return size_; } - - /** Returns the capacity of this buffer. */ - constexpr auto capacity() const noexcept -> size_t { return capacity_; } - - /** Returns a pointer to the buffer data. */ - FMT_CONSTEXPR auto data() noexcept -> T* { return ptr_; } - - /** Returns a pointer to the buffer data. */ - FMT_CONSTEXPR auto data() const noexcept -> const T* { return ptr_; } - - /** Clears this buffer. */ - void clear() { size_ = 0; } - - // Tries resizing the buffer to contain *count* elements. If T is a POD type - // the new elements may not be initialized. - FMT_CONSTEXPR20 void try_resize(size_t count) { - try_reserve(count); - size_ = count <= capacity_ ? count : capacity_; - } - - // Tries increasing the buffer capacity to *new_capacity*. It can increase the - // capacity by a smaller amount than requested but guarantees there is space - // for at least one additional element either by increasing the capacity or by - // flushing the buffer if it is full. - FMT_CONSTEXPR20 void try_reserve(size_t new_capacity) { - if (new_capacity > capacity_) grow(new_capacity); - } - - FMT_CONSTEXPR20 void push_back(const T& value) { - try_reserve(size_ + 1); - ptr_[size_++] = value; - } - - /** Appends data to the end of the buffer. */ - template - void append(const U* begin, const U* end); - - template - FMT_CONSTEXPR auto operator[](Idx index) -> T& { - return ptr_[index]; - } - template - FMT_CONSTEXPR auto operator[](Idx index) const -> const T& { - return ptr_[index]; - } -}; - -struct buffer_traits { - explicit buffer_traits(size_t) {} - auto count() const -> size_t { return 0; } - auto limit(size_t size) -> size_t { return size; } -}; - -class fixed_buffer_traits { -private: - size_t count_ = 0; - size_t limit_; - -public: - explicit fixed_buffer_traits(size_t limit) - : limit_(limit) {} - auto count() const -> size_t { return count_; } - auto limit(size_t size) -> size_t { - size_t n = limit_ > count_ ? limit_ - count_ : 0; - count_ += size; - return size < n ? size : n; - } -}; - -// A buffer that writes to an output iterator when flushed. -template -class iterator_buffer final : public Traits, public buffer { -private: - OutputIt out_; - enum { buffer_size = 256 }; - T data_[buffer_size]; - -protected: - FMT_CONSTEXPR20 void grow(size_t) override { - if (this->size() == buffer_size) flush(); - } - - void flush() { - auto size = this->size(); - this->clear(); - out_ = copy_str(data_, data_ + this->limit(size), out_); - } - -public: - explicit iterator_buffer(OutputIt out, size_t n = buffer_size) - : Traits(n), - buffer(data_, 0, buffer_size), - out_(out) {} - iterator_buffer(iterator_buffer&& other) - : Traits(other), - buffer(data_, 0, buffer_size), - out_(other.out_) {} - ~iterator_buffer() { flush(); } - - auto out() -> OutputIt { - flush(); - return out_; - } - auto count() const -> size_t { return Traits::count() + this->size(); } -}; - -template -class iterator_buffer final : public fixed_buffer_traits, - public buffer { -private: - T* out_; - enum { buffer_size = 256 }; - T data_[buffer_size]; - -protected: - FMT_CONSTEXPR20 void grow(size_t) override { - if (this->size() == this->capacity()) flush(); - } - - void flush() { - size_t n = this->limit(this->size()); - if (this->data() == out_) { - out_ += n; - this->set(data_, buffer_size); - } - this->clear(); - } - -public: - explicit iterator_buffer(T* out, size_t n = buffer_size) - : fixed_buffer_traits(n), - buffer(out, 0, n), - out_(out) {} - iterator_buffer(iterator_buffer&& other) - : fixed_buffer_traits(other), - buffer(std::move(other)), - out_(other.out_) { - if (this->data() != out_) { - this->set(data_, buffer_size); - this->clear(); - } - } - ~iterator_buffer() { flush(); } - - auto out() -> T* { - flush(); - return out_; - } - auto count() const -> size_t { return fixed_buffer_traits::count() + this->size(); } -}; - -template -class iterator_buffer final : public buffer { -protected: - FMT_CONSTEXPR20 void grow(size_t) override {} - -public: - explicit iterator_buffer(T* out, size_t = 0) - : buffer(out, 0, ~size_t()) {} - - auto out() -> T* { return &*this->end(); } -}; - -// A buffer that writes to a container with the contiguous storage. -template -class iterator_buffer, - enable_if_t::value, typename Container::value_type>> - final : public buffer { -private: - Container& container_; - -protected: - FMT_CONSTEXPR20 void grow(size_t capacity) override { - container_.resize(capacity); - this->set(&container_[0], capacity); - } - -public: - explicit iterator_buffer(Container& c) - : buffer(c.size()), - container_(c) {} - explicit iterator_buffer(std::back_insert_iterator out, size_t = 0) - : iterator_buffer(get_container(out)) {} - - auto out() -> std::back_insert_iterator { return std::back_inserter(container_); } -}; - -// A buffer that counts the number of code units written discarding the output. -template -class counting_buffer final : public buffer { -private: - enum { buffer_size = 256 }; - T data_[buffer_size]; - size_t count_ = 0; - -protected: - FMT_CONSTEXPR20 void grow(size_t) override { - if (this->size() != buffer_size) return; - count_ += this->size(); - this->clear(); - } - -public: - counting_buffer() - : buffer(data_, 0, buffer_size) {} - - auto count() -> size_t { return count_ + this->size(); } -}; - -template -using buffer_appender = - conditional_t::value, appender, std::back_insert_iterator>>; - -// Maps an output iterator to a buffer. -template -auto get_buffer(OutputIt out) -> iterator_buffer { - return iterator_buffer(out); -} - -template -auto get_iterator(Buffer& buf) -> decltype(buf.out()) { - return buf.out(); -} -template -auto get_iterator(buffer& buf) -> buffer_appender { - return buffer_appender(buf); -} - -template -struct fallback_formatter { - fallback_formatter() = delete; -}; - -// Specifies if T has an enabled fallback_formatter specialization. -template -using has_fallback_formatter = -#ifdef FMT_DEPRECATED_OSTREAM - std::is_constructible>; -#else - std::false_type; -#endif - -struct view {}; - -template -struct named_arg : view { - const Char* name; - const T& value; - named_arg(const Char* n, const T& v) - : name(n), - value(v) {} -}; - -template -struct named_arg_info { - const Char* name; - int id; -}; - -template -struct arg_data { - // args_[0].named_args points to named_args_ to avoid bloating format_args. - // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning. - T args_[1 + (NUM_ARGS != 0 ? NUM_ARGS : +1)]; - named_arg_info named_args_[NUM_NAMED_ARGS]; - - template - arg_data(const U&... init) - : args_{T(named_args_, NUM_NAMED_ARGS), init...} {} - arg_data(const arg_data& other) = delete; - auto args() const -> const T* { return args_ + 1; } - auto named_args() -> named_arg_info* { return named_args_; } -}; - -template -struct arg_data { - // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning. - T args_[NUM_ARGS != 0 ? NUM_ARGS : +1]; - - template - FMT_CONSTEXPR FMT_INLINE arg_data(const U&... init) - : args_{init...} {} - FMT_CONSTEXPR FMT_INLINE auto args() const -> const T* { return args_; } - FMT_CONSTEXPR FMT_INLINE auto named_args() -> std::nullptr_t { return nullptr; } -}; - -template -inline void init_named_args(named_arg_info*, int, int) {} - -template -struct is_named_arg : std::false_type {}; -template -struct is_statically_named_arg : std::false_type {}; - -template -struct is_named_arg> : std::true_type {}; - -template ::value)> -void init_named_args(named_arg_info* named_args, - int arg_count, - int named_arg_count, - const T&, - const Tail&... args) { - init_named_args(named_args, arg_count + 1, named_arg_count, args...); -} - -template ::value)> -void init_named_args(named_arg_info* named_args, - int arg_count, - int named_arg_count, - const T& arg, - const Tail&... args) { - named_args[named_arg_count++] = {arg.name, arg_count}; - init_named_args(named_args, arg_count + 1, named_arg_count, args...); -} - -template -FMT_CONSTEXPR FMT_INLINE void init_named_args(std::nullptr_t, int, int, const Args&...) {} - -template -constexpr auto count() -> size_t { - return B ? 1 : 0; -} -template -constexpr auto count() -> size_t { - return (B1 ? 1 : 0) + count(); -} - -template -constexpr auto count_named_args() -> size_t { - return count::value...>(); -} - -template -constexpr auto count_statically_named_args() -> size_t { - return count::value...>(); -} - -struct unformattable {}; -struct unformattable_char : unformattable {}; -struct unformattable_const : unformattable {}; -struct unformattable_pointer : unformattable {}; - -template -struct string_value { - const Char* data; - size_t size; -}; - -template -struct named_arg_value { - const named_arg_info* data; - size_t size; -}; - -template -struct custom_value { - using parse_context = typename Context::parse_context_type; - void* value; - void (*format)(void* arg, parse_context& parse_ctx, Context& ctx); -}; - -// A formatting argument value. -template -class value { -public: - using char_type = typename Context::char_type; - - union { - monostate no_value; - int int_value; - unsigned uint_value; - long long long_long_value; - unsigned long long ulong_long_value; - int128_opt int128_value; - uint128_opt uint128_value; - bool bool_value; - char_type char_value; - float float_value; - double double_value; - long double long_double_value; - const void* pointer; - string_value string; - custom_value custom; - named_arg_value named_args; - }; - - constexpr FMT_INLINE value() - : no_value() {} - constexpr FMT_INLINE value(int val) - : int_value(val) {} - constexpr FMT_INLINE value(unsigned val) - : uint_value(val) {} - constexpr FMT_INLINE value(long long val) - : long_long_value(val) {} - constexpr FMT_INLINE value(unsigned long long val) - : ulong_long_value(val) {} - FMT_INLINE value(int128_opt val) - : int128_value(val) {} - FMT_INLINE value(uint128_opt val) - : uint128_value(val) {} - constexpr FMT_INLINE value(float val) - : float_value(val) {} - constexpr FMT_INLINE value(double val) - : double_value(val) {} - FMT_INLINE value(long double val) - : long_double_value(val) {} - constexpr FMT_INLINE value(bool val) - : bool_value(val) {} - constexpr FMT_INLINE value(char_type val) - : char_value(val) {} - FMT_CONSTEXPR FMT_INLINE value(const char_type* val) { - string.data = val; - if (is_constant_evaluated()) string.size = {}; - } - FMT_CONSTEXPR FMT_INLINE value(basic_string_view val) { - string.data = val.data(); - string.size = val.size(); - } - FMT_INLINE value(const void* val) - : pointer(val) {} - FMT_INLINE value(const named_arg_info* args, size_t size) - : named_args{args, size} {} - - template - FMT_CONSTEXPR FMT_INLINE value(T& val) { - using value_type = remove_cvref_t; - custom.value = const_cast(&val); - // Get the formatter type through the context to allow different contexts - // have different extension points, e.g. `formatter` for `format` and - // `printf_formatter` for `printf`. - custom.format = - format_custom_arg::value, - typename Context::template formatter_type, - fallback_formatter>>; - } - value(unformattable); - value(unformattable_char); - value(unformattable_const); - value(unformattable_pointer); - -private: - // Formats an argument of a custom type, such as a user-defined class. - template - static void format_custom_arg(void* arg, - typename Context::parse_context_type& parse_ctx, - Context& ctx) { - auto f = Formatter(); - parse_ctx.advance_to(f.parse(parse_ctx)); - using qualified_type = conditional_t(), const T, T>; - ctx.advance_to(f.format(*static_cast(arg), ctx)); - } -}; - -template -FMT_CONSTEXPR auto make_arg(T&& value) -> basic_format_arg; - -// To minimize the number of types we need to deal with, long is translated -// either to int or to long long depending on its size. -enum { long_short = sizeof(long) == sizeof(int) }; -using long_type = conditional_t; -using ulong_type = conditional_t; - -#ifdef __cpp_lib_byte -inline auto format_as(std::byte b) -> unsigned char { return static_cast(b); } -#endif - -template -struct has_format_as { - template ::value&& std::is_integral::value)> - static auto check(U*) -> std::true_type; - static auto check(...) -> std::false_type; - - enum { value = decltype(check(static_cast(nullptr)))::value }; -}; - -// Maps formatting arguments to core types. -// arg_mapper reports errors by returning unformattable instead of using -// static_assert because it's used in the is_formattable trait. -template -struct arg_mapper { - using char_type = typename Context::char_type; - - FMT_CONSTEXPR FMT_INLINE auto map(signed char val) -> int { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(unsigned char val) -> unsigned { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(short val) -> int { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(unsigned short val) -> unsigned { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(int val) -> int { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(unsigned val) -> unsigned { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(long val) -> long_type { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(unsigned long val) -> ulong_type { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(long long val) -> long long { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(unsigned long long val) -> unsigned long long { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(int128_opt val) -> int128_opt { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(uint128_opt val) -> uint128_opt { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(bool val) -> bool { return val; } - - template ::value || std::is_same::value)> - FMT_CONSTEXPR FMT_INLINE auto map(T val) -> char_type { - return val; - } - template ::value || -#ifdef __cpp_char8_t - std::is_same::value || -#endif - std::is_same::value || std::is_same::value) && - !std::is_same::value, - int> = 0> - FMT_CONSTEXPR FMT_INLINE auto map(T) -> unformattable_char { - return {}; - } - - FMT_CONSTEXPR FMT_INLINE auto map(float val) -> float { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(double val) -> double { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(long double val) -> long double { return val; } - - FMT_CONSTEXPR FMT_INLINE auto map(char_type* val) -> const char_type* { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(const char_type* val) -> const char_type* { return val; } - template ::value && !std::is_pointer::value && - std::is_same>::value)> - FMT_CONSTEXPR FMT_INLINE auto map(const T& val) -> basic_string_view { - return to_string_view(val); - } - template ::value && !std::is_pointer::value && - !std::is_same>::value)> - FMT_CONSTEXPR FMT_INLINE auto map(const T&) -> unformattable_char { - return {}; - } - template >::value && - !is_string::value && !has_formatter::value && - !has_fallback_formatter::value)> - FMT_CONSTEXPR FMT_INLINE auto map(const T& val) -> basic_string_view { - return basic_string_view(val); - } - template >::value && - !std::is_convertible>::value && - !is_string::value && !has_formatter::value && - !has_fallback_formatter::value)> - FMT_CONSTEXPR FMT_INLINE auto map(const T& val) -> basic_string_view { - return std_string_view(val); - } - - FMT_CONSTEXPR FMT_INLINE auto map(void* val) -> const void* { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(const void* val) -> const void* { return val; } - FMT_CONSTEXPR FMT_INLINE auto map(std::nullptr_t val) -> const void* { return val; } - - // We use SFINAE instead of a const T* parameter to avoid conflicting with - // the C array overload. - template ::value || std::is_member_pointer::value || - std::is_function::type>::value || - (std::is_convertible::value && - !std::is_convertible::value && - !has_formatter::value))> - FMT_CONSTEXPR auto map(const T&) -> unformattable_pointer { - return {}; - } - - template ::value)> - FMT_CONSTEXPR FMT_INLINE auto map(const T (&values)[N]) -> const T (&)[N] { - return values; - } - - template ::value&& std::is_convertible::value && - !has_format_as::value && !has_formatter::value && - !has_fallback_formatter::value)> - FMT_DEPRECATED FMT_CONSTEXPR FMT_INLINE auto map(const T& val) - -> decltype(std::declval().map(static_cast>(val))) { - return map(static_cast>(val)); - } - - template ::value && !has_formatter::value)> - FMT_CONSTEXPR FMT_INLINE auto map(const T& val) - -> decltype(std::declval().map(format_as(T()))) { - return map(format_as(val)); - } - - template > - struct formattable : bool_constant() || - !std::is_const>::value || - has_fallback_formatter::value> {}; - -#if (FMT_MSC_VERSION != 0 && FMT_MSC_VERSION < 1910) || FMT_ICC_VERSION != 0 || defined(__NVCC__) - // Workaround a bug in MSVC and Intel (Issue 2746). - template - FMT_CONSTEXPR FMT_INLINE auto do_map(T&& val) -> T& { - return val; - } -#else - template ::value)> - FMT_CONSTEXPR FMT_INLINE auto do_map(T&& val) -> T& { - return val; - } - template ::value)> - FMT_CONSTEXPR FMT_INLINE auto do_map(T&&) -> unformattable_const { - return {}; - } -#endif - - template , - FMT_ENABLE_IF(!is_string::value && !is_char::value && - !std::is_array::value && !std::is_pointer::value && - !has_format_as::value && - (has_formatter::value || - has_fallback_formatter::value))> - FMT_CONSTEXPR FMT_INLINE auto map(T&& val) -> decltype(this->do_map(std::forward(val))) { - return do_map(std::forward(val)); - } - - template ::value)> - FMT_CONSTEXPR FMT_INLINE auto map(const T& named_arg) - -> decltype(std::declval().map(named_arg.value)) { - return map(named_arg.value); - } - - auto map(...) -> unformattable { return {}; } -}; - -// A type constant after applying arg_mapper. -template -using mapped_type_constant = - type_constant().map(std::declval())), - typename Context::char_type>; - -enum { packed_arg_bits = 4 }; -// Maximum number of arguments with packed types. -enum { max_packed_args = 62 / packed_arg_bits }; -enum : unsigned long long { is_unpacked_bit = 1ULL << 63 }; -enum : unsigned long long { has_named_args_bit = 1ULL << 62 }; - -FMT_END_DETAIL_NAMESPACE - -// An output iterator that appends to a buffer. -// It is used to reduce symbol sizes for the common case. -class appender : public std::back_insert_iterator> { - using base = std::back_insert_iterator>; - - template - friend auto get_buffer(appender out) -> detail::buffer& { - return detail::get_container(out); - } - -public: - using std::back_insert_iterator>::back_insert_iterator; - appender(base it) noexcept - : base(it) {} - FMT_UNCHECKED_ITERATOR(appender); - - auto operator++() noexcept -> appender& { return *this; } - auto operator++(int) noexcept -> appender { return *this; } -}; - -// A formatting argument. It is a trivially copyable/constructible type to -// allow storage in basic_memory_buffer. -template -class basic_format_arg { -private: - detail::value value_; - detail::type type_; - - template - friend FMT_CONSTEXPR auto detail::make_arg(T&& value) -> basic_format_arg; - - template - friend FMT_CONSTEXPR auto visit_format_arg(Visitor&& vis, const basic_format_arg& arg) - -> decltype(vis(0)); - - friend class basic_format_args; - friend class dynamic_format_arg_store; - - using char_type = typename Context::char_type; - - template - friend struct detail::arg_data; - - basic_format_arg(const detail::named_arg_info* args, size_t size) - : value_(args, size) {} - -public: - class handle { - public: - explicit handle(detail::custom_value custom) - : custom_(custom) {} - - void format(typename Context::parse_context_type& parse_ctx, Context& ctx) const { - custom_.format(custom_.value, parse_ctx, ctx); - } - - private: - detail::custom_value custom_; - }; - - constexpr basic_format_arg() - : type_(detail::type::none_type) {} - - constexpr explicit operator bool() const noexcept { return type_ != detail::type::none_type; } - - auto type() const -> detail::type { return type_; } - - auto is_integral() const -> bool { return detail::is_integral_type(type_); } - auto is_arithmetic() const -> bool { return detail::is_arithmetic_type(type_); } -}; - -/** - \rst - Visits an argument dispatching to the appropriate visit method based on - the argument type. For example, if the argument type is ``double`` then - ``vis(value)`` will be called with the value of type ``double``. - \endrst - */ -template -FMT_CONSTEXPR FMT_INLINE auto visit_format_arg(Visitor&& vis, const basic_format_arg& arg) - -> decltype(vis(0)) { - switch (arg.type_) { - case detail::type::none_type: - break; - case detail::type::int_type: - return vis(arg.value_.int_value); - case detail::type::uint_type: - return vis(arg.value_.uint_value); - case detail::type::long_long_type: - return vis(arg.value_.long_long_value); - case detail::type::ulong_long_type: - return vis(arg.value_.ulong_long_value); - case detail::type::int128_type: - return vis(detail::convert_for_visit(arg.value_.int128_value)); - case detail::type::uint128_type: - return vis(detail::convert_for_visit(arg.value_.uint128_value)); - case detail::type::bool_type: - return vis(arg.value_.bool_value); - case detail::type::char_type: - return vis(arg.value_.char_value); - case detail::type::float_type: - return vis(arg.value_.float_value); - case detail::type::double_type: - return vis(arg.value_.double_value); - case detail::type::long_double_type: - return vis(arg.value_.long_double_value); - case detail::type::cstring_type: - return vis(arg.value_.string.data); - case detail::type::string_type: - using sv = basic_string_view; - return vis(sv(arg.value_.string.data, arg.value_.string.size)); - case detail::type::pointer_type: - return vis(arg.value_.pointer); - case detail::type::custom_type: - return vis(typename basic_format_arg::handle(arg.value_.custom)); - } - return vis(monostate()); -} - -FMT_BEGIN_DETAIL_NAMESPACE - -template -auto copy_str(InputIt begin, InputIt end, appender out) -> appender { - get_container(out).append(begin, end); - return out; -} - -template -FMT_CONSTEXPR auto copy_str(R&& rng, OutputIt out) -> OutputIt { - return detail::copy_str(rng.begin(), rng.end(), out); -} - -#if FMT_GCC_VERSION && FMT_GCC_VERSION < 500 -// A workaround for gcc 4.8 to make void_t work in a SFINAE context. -template -struct void_t_impl { - using type = void; -}; -template -using void_t = typename detail::void_t_impl::type; -#else -template -using void_t = void; -#endif - -template -struct is_output_iterator : std::false_type {}; - -template -struct is_output_iterator::iterator_category, - decltype(*std::declval() = std::declval())>> - : std::true_type {}; - -template -struct is_back_insert_iterator : std::false_type {}; -template -struct is_back_insert_iterator> : std::true_type {}; - -template -struct is_contiguous_back_insert_iterator : std::false_type {}; -template -struct is_contiguous_back_insert_iterator> - : is_contiguous {}; -template <> -struct is_contiguous_back_insert_iterator : std::true_type {}; - -// A type-erased reference to an std::locale to avoid a heavy include. -class locale_ref { -private: - const void* locale_; // A type-erased pointer to std::locale. - -public: - constexpr locale_ref() - : locale_(nullptr) {} - template - explicit locale_ref(const Locale& loc); - - explicit operator bool() const noexcept { return locale_ != nullptr; } - - template - auto get() const -> Locale; -}; - -template -constexpr auto encode_types() -> unsigned long long { - return 0; -} - -template -constexpr auto encode_types() -> unsigned long long { - return static_cast(mapped_type_constant::value) | - (encode_types() << packed_arg_bits); -} - -template -FMT_CONSTEXPR FMT_INLINE auto make_value(T&& val) -> value { - const auto& arg = arg_mapper().map(FMT_FORWARD(val)); - - constexpr bool formattable_char = - !std::is_same::value; - static_assert(formattable_char, "Mixing character types is disallowed."); - - constexpr bool formattable_const = - !std::is_same::value; - static_assert(formattable_const, "Cannot format a const argument."); - - // Formatting of arbitrary pointers is disallowed. If you want to output - // a pointer cast it to "void *" or "const void *". In particular, this - // forbids formatting of "[const] volatile char *" which is printed as bool - // by iostreams. - constexpr bool formattable_pointer = - !std::is_same::value; - static_assert(formattable_pointer, "Formatting of non-void pointers is disallowed."); - - constexpr bool formattable = !std::is_same::value; - static_assert(formattable, - "Cannot format an argument. To make type T formattable provide a " - "formatter specialization: https://fmt.dev/latest/api.html#udt"); - return {arg}; -} - -template -FMT_CONSTEXPR auto make_arg(T&& value) -> basic_format_arg { - basic_format_arg arg; - arg.type_ = mapped_type_constant::value; - arg.value_ = make_value(value); - return arg; -} - -// The type template parameter is there to avoid an ODR violation when using -// a fallback formatter in one translation unit and an implicit conversion in -// another (not recommended). -template -FMT_CONSTEXPR FMT_INLINE auto make_arg(T&& val) -> value { - return make_value(val); -} - -template -FMT_CONSTEXPR inline auto make_arg(T&& value) -> basic_format_arg { - return make_arg(value); -} -FMT_END_DETAIL_NAMESPACE - -// Formatting context. -template -class basic_format_context { -public: - /** The character type for the output. */ - using char_type = Char; - -private: - OutputIt out_; - basic_format_args args_; - detail::locale_ref loc_; - -public: - using iterator = OutputIt; - using format_arg = basic_format_arg; - using parse_context_type = basic_format_parse_context; - template - using formatter_type = formatter; - - basic_format_context(basic_format_context&&) = default; - basic_format_context(const basic_format_context&) = delete; - void operator=(const basic_format_context&) = delete; - /** - Constructs a ``basic_format_context`` object. References to the arguments are - stored in the object so make sure they have appropriate lifetimes. - */ - constexpr basic_format_context(OutputIt out, - basic_format_args ctx_args, - detail::locale_ref loc = detail::locale_ref()) - : out_(out), - args_(ctx_args), - loc_(loc) {} - - constexpr auto arg(int id) const -> format_arg { return args_.get(id); } - FMT_CONSTEXPR auto arg(basic_string_view name) -> format_arg { - return args_.get(name); - } - FMT_CONSTEXPR auto arg_id(basic_string_view name) -> int { - return args_.get_id(name); - } - auto args() const -> const basic_format_args& { return args_; } - - FMT_CONSTEXPR auto error_handler() -> detail::error_handler { return {}; } - void on_error(const char* message) { error_handler().on_error(message); } - - // Returns an iterator to the beginning of the output range. - FMT_CONSTEXPR auto out() -> iterator { return out_; } - - // Advances the begin iterator to ``it``. - void advance_to(iterator it) { - if (!detail::is_back_insert_iterator()) out_ = it; - } - - FMT_CONSTEXPR auto locale() -> detail::locale_ref { return loc_; } -}; - -template -using buffer_context = basic_format_context, Char>; -using format_context = buffer_context; - -// Workaround an alias issue: https://stackoverflow.com/q/62767544/471164. -#define FMT_BUFFER_CONTEXT(Char) basic_format_context, Char> - -template -using is_formattable = - bool_constant>().map( - std::declval()))>::value && - !detail::has_fallback_formatter::value>; - -/** - \rst - An array of references to arguments. It can be implicitly converted into - `~fmt::basic_format_args` for passing into type-erased formatting functions - such as `~fmt::vformat`. - \endrst - */ -template -class format_arg_store -#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 - // Workaround a GCC template argument substitution bug. - : public basic_format_args -#endif -{ -private: - static const size_t num_args = sizeof...(Args); - static const size_t num_named_args = detail::count_named_args(); - static const bool is_packed = num_args <= detail::max_packed_args; - - using value_type = conditional_t, basic_format_arg>; - - detail::arg_data data_; - - friend class basic_format_args; - - static constexpr unsigned long long desc = - (is_packed ? detail::encode_types() - : detail::is_unpacked_bit | num_args) | - (num_named_args != 0 ? static_cast(detail::has_named_args_bit) : 0); - -public: - template - FMT_CONSTEXPR FMT_INLINE format_arg_store(T&&... args) - : -#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 - basic_format_args(*this), -#endif - data_{detail::make_arg, Context>::value>( - FMT_FORWARD(args))...} { - detail::init_named_args(data_.named_args(), 0, 0, args...); - } -}; - -/** - \rst - Constructs a `~fmt::format_arg_store` object that contains references to - arguments and can be implicitly converted to `~fmt::format_args`. `Context` - can be omitted in which case it defaults to `~fmt::context`. - See `~fmt::arg` for lifetime considerations. - \endrst - */ -template -constexpr auto make_format_args(Args&&... args) - -> format_arg_store...> { - return {FMT_FORWARD(args)...}; -} - -/** - \rst - Returns a named argument to be used in a formatting function. - It should only be used in a call to a formatting function or - `dynamic_format_arg_store::push_back`. - - **Example**:: - - fmt::print("Elapsed time: {s:.2f} seconds", fmt::arg("s", 1.23)); - \endrst - */ -template -inline auto arg(const Char* name, const T& arg) -> detail::named_arg { - static_assert(!detail::is_named_arg(), "nested named arguments"); - return {name, arg}; -} - -/** - \rst - A view of a collection of formatting arguments. To avoid lifetime issues it - should only be used as a parameter type in type-erased functions such as - ``vformat``:: - - void vlog(string_view format_str, format_args args); // OK - format_args args = make_format_args(42); // Error: dangling reference - \endrst - */ -template -class basic_format_args { -public: - using size_type = int; - using format_arg = basic_format_arg; - -private: - // A descriptor that contains information about formatting arguments. - // If the number of arguments is less or equal to max_packed_args then - // argument types are passed in the descriptor. This reduces binary code size - // per formatting function call. - unsigned long long desc_; - union { - // If is_packed() returns true then argument values are stored in values_; - // otherwise they are stored in args_. This is done to improve cache - // locality and reduce compiled code size since storing larger objects - // may require more code (at least on x86-64) even if the same amount of - // data is actually copied to stack. It saves ~10% on the bloat test. - const detail::value* values_; - const format_arg* args_; - }; - - constexpr auto is_packed() const -> bool { return (desc_ & detail::is_unpacked_bit) == 0; } - auto has_named_args() const -> bool { return (desc_ & detail::has_named_args_bit) != 0; } - - FMT_CONSTEXPR auto type(int index) const -> detail::type { - int shift = index * detail::packed_arg_bits; - unsigned int mask = (1 << detail::packed_arg_bits) - 1; - return static_cast((desc_ >> shift) & mask); - } - - constexpr FMT_INLINE basic_format_args(unsigned long long desc, - const detail::value* values) - : desc_(desc), - values_(values) {} - constexpr basic_format_args(unsigned long long desc, const format_arg* args) - : desc_(desc), - args_(args) {} - -public: - constexpr basic_format_args() - : desc_(0), - args_(nullptr) {} - - /** - \rst - Constructs a `basic_format_args` object from `~fmt::format_arg_store`. - \endrst - */ - template - constexpr FMT_INLINE basic_format_args(const format_arg_store& store) - : basic_format_args(format_arg_store::desc, store.data_.args()) {} - - /** - \rst - Constructs a `basic_format_args` object from - `~fmt::dynamic_format_arg_store`. - \endrst - */ - constexpr FMT_INLINE basic_format_args(const dynamic_format_arg_store& store) - : basic_format_args(store.get_types(), store.data()) {} - - /** - \rst - Constructs a `basic_format_args` object from a dynamic set of arguments. - \endrst - */ - constexpr basic_format_args(const format_arg* args, int count) - : basic_format_args(detail::is_unpacked_bit | detail::to_unsigned(count), args) {} - - /** Returns the argument with the specified id. */ - FMT_CONSTEXPR auto get(int id) const -> format_arg { - format_arg arg; - if (!is_packed()) { - if (id < max_size()) arg = args_[id]; - return arg; - } - if (id >= detail::max_packed_args) return arg; - arg.type_ = type(id); - if (arg.type_ == detail::type::none_type) return arg; - arg.value_ = values_[id]; - return arg; - } - - template - auto get(basic_string_view name) const -> format_arg { - int id = get_id(name); - return id >= 0 ? get(id) : format_arg(); - } - - template - auto get_id(basic_string_view name) const -> int { - if (!has_named_args()) return -1; - const auto& named_args = (is_packed() ? values_[-1] : args_[-1].value_).named_args; - for (size_t i = 0; i < named_args.size; ++i) { - if (named_args.data[i].name == name) return named_args.data[i].id; - } - return -1; - } - - auto max_size() const -> int { - unsigned long long max_packed = detail::max_packed_args; - return static_cast(is_packed() ? max_packed : desc_ & ~detail::is_unpacked_bit); - } -}; - -/** An alias to ``basic_format_args``. */ -// A separate type would result in shorter symbols but break ABI compatibility -// between clang and gcc on ARM (#1919). -using format_args = basic_format_args; - -// We cannot use enum classes as bit fields because of a gcc bug, so we put them -// in namespaces instead (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61414). -// Additionally, if an underlying type is specified, older gcc incorrectly warns -// that the type is too small. Both bugs are fixed in gcc 9.3. -#if FMT_GCC_VERSION && FMT_GCC_VERSION < 903 - #define FMT_ENUM_UNDERLYING_TYPE(type) -#else - #define FMT_ENUM_UNDERLYING_TYPE(type) : type -#endif -namespace align { -enum type FMT_ENUM_UNDERLYING_TYPE(unsigned char){none, left, right, center, numeric}; -} -using align_t = align::type; -namespace sign { -enum type FMT_ENUM_UNDERLYING_TYPE(unsigned char){none, minus, plus, space}; -} -using sign_t = sign::type; - -FMT_BEGIN_DETAIL_NAMESPACE - -// Workaround an array initialization issue in gcc 4.8. -template -struct fill_t { -private: - enum { max_size = 4 }; - Char data_[max_size] = {Char(' '), Char(0), Char(0), Char(0)}; - unsigned char size_ = 1; - -public: - FMT_CONSTEXPR void operator=(basic_string_view s) { - auto size = s.size(); - if (size > max_size) return throw_format_error("invalid fill"); - for (size_t i = 0; i < size; ++i) data_[i] = s[i]; - size_ = static_cast(size); - } - - constexpr auto size() const -> size_t { return size_; } - constexpr auto data() const -> const Char* { return data_; } - - FMT_CONSTEXPR auto operator[](size_t index) -> Char& { return data_[index]; } - FMT_CONSTEXPR auto operator[](size_t index) const -> const Char& { return data_[index]; } -}; -FMT_END_DETAIL_NAMESPACE - -enum class presentation_type : unsigned char { - none, - // Integer types should go first, - dec, // 'd' - oct, // 'o' - hex_lower, // 'x' - hex_upper, // 'X' - bin_lower, // 'b' - bin_upper, // 'B' - hexfloat_lower, // 'a' - hexfloat_upper, // 'A' - exp_lower, // 'e' - exp_upper, // 'E' - fixed_lower, // 'f' - fixed_upper, // 'F' - general_lower, // 'g' - general_upper, // 'G' - chr, // 'c' - string, // 's' - pointer, // 'p' - debug // '?' -}; - -// Format specifiers for built-in and string types. -template -struct basic_format_specs { - int width; - int precision; - presentation_type type; - align_t align : 4; - sign_t sign : 3; - bool alt : 1; // Alternate form ('#'). - bool localized : 1; - detail::fill_t fill; - - constexpr basic_format_specs() - : width(0), - precision(-1), - type(presentation_type::none), - align(align::none), - sign(sign::none), - alt(false), - localized(false) {} -}; - -using format_specs = basic_format_specs; - -FMT_BEGIN_DETAIL_NAMESPACE - -enum class arg_id_kind { none, index, name }; - -// An argument reference. -template -struct arg_ref { - FMT_CONSTEXPR arg_ref() - : kind(arg_id_kind::none), - val() {} - - FMT_CONSTEXPR explicit arg_ref(int index) - : kind(arg_id_kind::index), - val(index) {} - FMT_CONSTEXPR explicit arg_ref(basic_string_view name) - : kind(arg_id_kind::name), - val(name) {} - - FMT_CONSTEXPR auto operator=(int idx) -> arg_ref& { - kind = arg_id_kind::index; - val.index = idx; - return *this; - } - - arg_id_kind kind; - union value { - FMT_CONSTEXPR value(int id = 0) - : index{id} {} - FMT_CONSTEXPR value(basic_string_view n) - : name(n) {} - - int index; - basic_string_view name; - } val; -}; - -// Format specifiers with width and precision resolved at formatting rather -// than parsing time to allow re-using the same parsed specifiers with -// different sets of arguments (precompilation of format strings). -template -struct dynamic_format_specs : basic_format_specs { - arg_ref width_ref; - arg_ref precision_ref; -}; - -struct auto_id {}; - -// A format specifier handler that sets fields in basic_format_specs. -template -class specs_setter { -protected: - basic_format_specs& specs_; - -public: - explicit FMT_CONSTEXPR specs_setter(basic_format_specs& specs) - : specs_(specs) {} - - FMT_CONSTEXPR specs_setter(const specs_setter& other) - : specs_(other.specs_) {} - - FMT_CONSTEXPR void on_align(align_t align) { specs_.align = align; } - FMT_CONSTEXPR void on_fill(basic_string_view fill) { specs_.fill = fill; } - FMT_CONSTEXPR void on_sign(sign_t s) { specs_.sign = s; } - FMT_CONSTEXPR void on_hash() { specs_.alt = true; } - FMT_CONSTEXPR void on_localized() { specs_.localized = true; } - - FMT_CONSTEXPR void on_zero() { - if (specs_.align == align::none) specs_.align = align::numeric; - specs_.fill[0] = Char('0'); - } - - FMT_CONSTEXPR void on_width(int width) { specs_.width = width; } - FMT_CONSTEXPR void on_precision(int precision) { specs_.precision = precision; } - FMT_CONSTEXPR void end_precision() {} - - FMT_CONSTEXPR void on_type(presentation_type type) { specs_.type = type; } -}; - -// Format spec handler that saves references to arguments representing dynamic -// width and precision to be resolved at formatting time. -template -class dynamic_specs_handler : public specs_setter { -public: - using char_type = typename ParseContext::char_type; - - FMT_CONSTEXPR dynamic_specs_handler(dynamic_format_specs& specs, ParseContext& ctx) - : specs_setter(specs), - specs_(specs), - context_(ctx) {} - - FMT_CONSTEXPR dynamic_specs_handler(const dynamic_specs_handler& other) - : specs_setter(other), - specs_(other.specs_), - context_(other.context_) {} - - template - FMT_CONSTEXPR void on_dynamic_width(Id arg_id) { - specs_.width_ref = make_arg_ref(arg_id); - } - - template - FMT_CONSTEXPR void on_dynamic_precision(Id arg_id) { - specs_.precision_ref = make_arg_ref(arg_id); - } - - FMT_CONSTEXPR void on_error(const char* message) { context_.on_error(message); } - -private: - dynamic_format_specs& specs_; - ParseContext& context_; - - using arg_ref_type = arg_ref; - - FMT_CONSTEXPR auto make_arg_ref(int arg_id) -> arg_ref_type { - context_.check_arg_id(arg_id); - context_.check_dynamic_spec(arg_id); - return arg_ref_type(arg_id); - } - - FMT_CONSTEXPR auto make_arg_ref(auto_id) -> arg_ref_type { - int arg_id = context_.next_arg_id(); - context_.check_dynamic_spec(arg_id); - return arg_ref_type(arg_id); - } - - FMT_CONSTEXPR auto make_arg_ref(basic_string_view arg_id) -> arg_ref_type { - context_.check_arg_id(arg_id); - basic_string_view format_str(context_.begin(), - to_unsigned(context_.end() - context_.begin())); - return arg_ref_type(arg_id); - } -}; - -template -constexpr bool is_ascii_letter(Char c) { - return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); -} - -// Converts a character to ASCII. Returns a number > 127 on conversion failure. -template ::value)> -constexpr auto to_ascii(Char c) -> Char { - return c; -} -template ::value)> -constexpr auto to_ascii(Char c) -> underlying_t { - return c; -} - -FMT_CONSTEXPR inline auto code_point_length_impl(char c) -> int { - return "\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0\0\0\2\2\2\2\3\3\4" - [static_cast(c) >> 3]; -} - -template -FMT_CONSTEXPR auto code_point_length(const Char* begin) -> int { - if (const_check(sizeof(Char) != 1)) return 1; - int len = code_point_length_impl(static_cast(*begin)); - - // Compute the pointer to the next character early so that the next - // iteration can start working on the next character. Neither Clang - // nor GCC figure out this reordering on their own. - return len + !len; -} - -// Return the result via the out param to workaround gcc bug 77539. -template -FMT_CONSTEXPR auto find(Ptr first, Ptr last, T value, Ptr& out) -> bool { - for (out = first; out != last; ++out) { - if (*out == value) return true; - } - return false; -} - -template <> -inline auto find(const char* first, const char* last, char value, const char*& out) - -> bool { - out = static_cast(std::memchr(first, value, to_unsigned(last - first))); - return out != nullptr; -} - -// Parses the range [begin, end) as an unsigned integer. This function assumes -// that the range is non-empty and the first character is a digit. -template -FMT_CONSTEXPR auto parse_nonnegative_int(const Char*& begin, - const Char* end, - int error_value) noexcept -> int { - FMT_ASSERT(begin != end && '0' <= *begin && *begin <= '9', ""); - unsigned value = 0, prev = 0; - auto p = begin; - do { - prev = value; - value = value * 10 + unsigned(*p - '0'); - ++p; - } while (p != end && '0' <= *p && *p <= '9'); - auto num_digits = p - begin; - begin = p; - if (num_digits <= std::numeric_limits::digits10) return static_cast(value); - // Check for overflow. - const unsigned max = to_unsigned((std::numeric_limits::max)()); - return num_digits == std::numeric_limits::digits10 + 1 && - prev * 10ull + unsigned(p[-1] - '0') <= max - ? static_cast(value) - : error_value; -} - -// Parses fill and alignment. -template -FMT_CONSTEXPR auto parse_align(const Char* begin, const Char* end, Handler&& handler) - -> const Char* { - FMT_ASSERT(begin != end, ""); - auto align = align::none; - auto p = begin + code_point_length(begin); - if (end - p <= 0) p = begin; - for (;;) { - switch (to_ascii(*p)) { - case '<': - align = align::left; - break; - case '>': - align = align::right; - break; - case '^': - align = align::center; - break; - default: - break; - } - if (align != align::none) { - if (p != begin) { - auto c = *begin; - if (c == '{') return handler.on_error("invalid fill character '{'"), begin; - handler.on_fill(basic_string_view(begin, to_unsigned(p - begin))); - begin = p + 1; - } else - ++begin; - handler.on_align(align); - break; - } else if (p == begin) { - break; - } - p = begin; - } - return begin; -} - -template -FMT_CONSTEXPR bool is_name_start(Char c) { - return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c; -} - -template -FMT_CONSTEXPR auto do_parse_arg_id(const Char* begin, const Char* end, IDHandler&& handler) - -> const Char* { - FMT_ASSERT(begin != end, ""); - Char c = *begin; - if (c >= '0' && c <= '9') { - int index = 0; - if (c != '0') - index = parse_nonnegative_int(begin, end, (std::numeric_limits::max)()); - else - ++begin; - if (begin == end || (*begin != '}' && *begin != ':')) - handler.on_error("invalid format string"); - else - handler(index); - return begin; - } - if (!is_name_start(c)) { - handler.on_error("invalid format string"); - return begin; - } - auto it = begin; - do { - ++it; - } while (it != end && (is_name_start(c = *it) || ('0' <= c && c <= '9'))); - handler(basic_string_view(begin, to_unsigned(it - begin))); - return it; -} - -template -FMT_CONSTEXPR FMT_INLINE auto parse_arg_id(const Char* begin, const Char* end, IDHandler&& handler) - -> const Char* { - Char c = *begin; - if (c != '}' && c != ':') return do_parse_arg_id(begin, end, handler); - handler(); - return begin; -} - -template -FMT_CONSTEXPR auto parse_width(const Char* begin, const Char* end, Handler&& handler) - -> const Char* { - using detail::auto_id; - struct width_adapter { - Handler& handler; - - FMT_CONSTEXPR void operator()() { handler.on_dynamic_width(auto_id()); } - FMT_CONSTEXPR void operator()(int id) { handler.on_dynamic_width(id); } - FMT_CONSTEXPR void operator()(basic_string_view id) { handler.on_dynamic_width(id); } - FMT_CONSTEXPR void on_error(const char* message) { - if (message) handler.on_error(message); - } - }; - - FMT_ASSERT(begin != end, ""); - if ('0' <= *begin && *begin <= '9') { - int width = parse_nonnegative_int(begin, end, -1); - if (width != -1) - handler.on_width(width); - else - handler.on_error("number is too big"); - } else if (*begin == '{') { - ++begin; - if (begin != end) begin = parse_arg_id(begin, end, width_adapter{handler}); - if (begin == end || *begin != '}') return handler.on_error("invalid format string"), begin; - ++begin; - } - return begin; -} - -template -FMT_CONSTEXPR auto parse_precision(const Char* begin, const Char* end, Handler&& handler) - -> const Char* { - using detail::auto_id; - struct precision_adapter { - Handler& handler; - - FMT_CONSTEXPR void operator()() { handler.on_dynamic_precision(auto_id()); } - FMT_CONSTEXPR void operator()(int id) { handler.on_dynamic_precision(id); } - FMT_CONSTEXPR void operator()(basic_string_view id) { - handler.on_dynamic_precision(id); - } - FMT_CONSTEXPR void on_error(const char* message) { - if (message) handler.on_error(message); - } - }; - - ++begin; - auto c = begin != end ? *begin : Char(); - if ('0' <= c && c <= '9') { - auto precision = parse_nonnegative_int(begin, end, -1); - if (precision != -1) - handler.on_precision(precision); - else - handler.on_error("number is too big"); - } else if (c == '{') { - ++begin; - if (begin != end) begin = parse_arg_id(begin, end, precision_adapter{handler}); - if (begin == end || *begin++ != '}') - return handler.on_error("invalid format string"), begin; - } else { - return handler.on_error("missing precision specifier"), begin; - } - handler.end_precision(); - return begin; -} - -template -FMT_CONSTEXPR auto parse_presentation_type(Char type) -> presentation_type { - switch (to_ascii(type)) { - case 'd': - return presentation_type::dec; - case 'o': - return presentation_type::oct; - case 'x': - return presentation_type::hex_lower; - case 'X': - return presentation_type::hex_upper; - case 'b': - return presentation_type::bin_lower; - case 'B': - return presentation_type::bin_upper; - case 'a': - return presentation_type::hexfloat_lower; - case 'A': - return presentation_type::hexfloat_upper; - case 'e': - return presentation_type::exp_lower; - case 'E': - return presentation_type::exp_upper; - case 'f': - return presentation_type::fixed_lower; - case 'F': - return presentation_type::fixed_upper; - case 'g': - return presentation_type::general_lower; - case 'G': - return presentation_type::general_upper; - case 'c': - return presentation_type::chr; - case 's': - return presentation_type::string; - case 'p': - return presentation_type::pointer; - case '?': - return presentation_type::debug; - default: - return presentation_type::none; - } -} - -// Parses standard format specifiers and sends notifications about parsed -// components to handler. -template -FMT_CONSTEXPR FMT_INLINE auto parse_format_specs(const Char* begin, - const Char* end, - SpecHandler&& handler) -> const Char* { - if (1 < end - begin && begin[1] == '}' && is_ascii_letter(*begin) && *begin != 'L') { - presentation_type type = parse_presentation_type(*begin++); - if (type == presentation_type::none) handler.on_error("invalid type specifier"); - handler.on_type(type); - return begin; - } - - if (begin == end) return begin; - - begin = parse_align(begin, end, handler); - if (begin == end) return begin; - - // Parse sign. - switch (to_ascii(*begin)) { - case '+': - handler.on_sign(sign::plus); - ++begin; - break; - case '-': - handler.on_sign(sign::minus); - ++begin; - break; - case ' ': - handler.on_sign(sign::space); - ++begin; - break; - default: - break; - } - if (begin == end) return begin; - - if (*begin == '#') { - handler.on_hash(); - if (++begin == end) return begin; - } - - // Parse zero flag. - if (*begin == '0') { - handler.on_zero(); - if (++begin == end) return begin; - } - - begin = parse_width(begin, end, handler); - if (begin == end) return begin; - - // Parse precision. - if (*begin == '.') { - begin = parse_precision(begin, end, handler); - if (begin == end) return begin; - } - - if (*begin == 'L') { - handler.on_localized(); - ++begin; - } - - // Parse type. - if (begin != end && *begin != '}') { - presentation_type type = parse_presentation_type(*begin++); - if (type == presentation_type::none) handler.on_error("invalid type specifier"); - handler.on_type(type); - } - return begin; -} - -template -FMT_CONSTEXPR auto parse_replacement_field(const Char* begin, const Char* end, Handler&& handler) - -> const Char* { - struct id_adapter { - Handler& handler; - int arg_id; - - FMT_CONSTEXPR void operator()() { arg_id = handler.on_arg_id(); } - FMT_CONSTEXPR void operator()(int id) { arg_id = handler.on_arg_id(id); } - FMT_CONSTEXPR void operator()(basic_string_view id) { - arg_id = handler.on_arg_id(id); - } - FMT_CONSTEXPR void on_error(const char* message) { - if (message) handler.on_error(message); - } - }; - - ++begin; - if (begin == end) return handler.on_error("invalid format string"), end; - if (*begin == '}') { - handler.on_replacement_field(handler.on_arg_id(), begin); - } else if (*begin == '{') { - handler.on_text(begin, begin + 1); - } else { - auto adapter = id_adapter{handler, 0}; - begin = parse_arg_id(begin, end, adapter); - Char c = begin != end ? *begin : Char(); - if (c == '}') { - handler.on_replacement_field(adapter.arg_id, begin); - } else if (c == ':') { - begin = handler.on_format_specs(adapter.arg_id, begin + 1, end); - if (begin == end || *begin != '}') - return handler.on_error("unknown format specifier"), end; - } else { - return handler.on_error("missing '}' in format string"), end; - } - } - return begin + 1; -} - -template -FMT_CONSTEXPR FMT_INLINE void parse_format_string(basic_string_view format_str, - Handler&& handler) { - // Workaround a name-lookup bug in MSVC's modules implementation. - using detail::find; - - auto begin = format_str.data(); - auto end = begin + format_str.size(); - if (end - begin < 32) { - // Use a simple loop instead of memchr for small strings. - const Char* p = begin; - while (p != end) { - auto c = *p++; - if (c == '{') { - handler.on_text(begin, p - 1); - begin = p = parse_replacement_field(p - 1, end, handler); - } else if (c == '}') { - if (p == end || *p != '}') - return handler.on_error("unmatched '}' in format string"); - handler.on_text(begin, p); - begin = ++p; - } - } - handler.on_text(begin, end); - return; - } - struct writer { - FMT_CONSTEXPR void operator()(const Char* from, const Char* to) { - if (from == to) return; - for (;;) { - const Char* p = nullptr; - if (!find(from, to, Char('}'), p)) return handler_.on_text(from, to); - ++p; - if (p == to || *p != '}') - return handler_.on_error("unmatched '}' in format string"); - handler_.on_text(from, p); - from = p + 1; - } - } - Handler& handler_; - } write = {handler}; - while (begin != end) { - // Doing two passes with memchr (one for '{' and another for '}') is up to - // 2.5x faster than the naive one-pass implementation on big format strings. - const Char* p = begin; - if (*begin != '{' && !find(begin + 1, end, Char('{'), p)) - return write(begin, end); - write(begin, p); - begin = parse_replacement_field(p, end, handler); - } -} - -template ::value> -struct strip_named_arg { - using type = T; -}; -template -struct strip_named_arg { - using type = remove_cvref_t; -}; - -template -FMT_CONSTEXPR auto parse_format_specs(ParseContext& ctx) -> decltype(ctx.begin()) { - using char_type = typename ParseContext::char_type; - using context = buffer_context; - using stripped_type = typename strip_named_arg::type; - using mapped_type = - conditional_t::value != type::custom_type, - decltype(arg_mapper().map(std::declval())), stripped_type>; - auto f = - conditional_t::value, formatter, - fallback_formatter>(); - return f.parse(ctx); -} - -template -FMT_CONSTEXPR void check_int_type_spec(presentation_type type, ErrorHandler&& eh) { - if (type > presentation_type::bin_upper && type != presentation_type::chr) - eh.on_error("invalid type specifier"); -} - -// Checks char specs and returns true if the type spec is char (and not int). -template -FMT_CONSTEXPR auto check_char_specs(const basic_format_specs& specs, ErrorHandler&& eh = {}) - -> bool { - if (specs.type != presentation_type::none && specs.type != presentation_type::chr && - specs.type != presentation_type::debug) { - check_int_type_spec(specs.type, eh); - return false; - } - if (specs.align == align::numeric || specs.sign != sign::none || specs.alt) - eh.on_error("invalid format specifier for char"); - return true; -} - -// A floating-point presentation format. -enum class float_format : unsigned char { - general, // General: exponent notation or fixed point based on magnitude. - exp, // Exponent notation with the default precision of 6, e.g. 1.2e-3. - fixed, // Fixed point with the default precision of 6, e.g. 0.0012. - hex -}; - -struct float_specs { - int precision; - float_format format : 8; - sign_t sign : 8; - bool upper : 1; - bool locale : 1; - bool binary32 : 1; - bool showpoint : 1; -}; - -template -FMT_CONSTEXPR auto parse_float_type_spec(const basic_format_specs& specs, - ErrorHandler&& eh = {}) -> float_specs { - auto result = float_specs(); - result.showpoint = specs.alt; - result.locale = specs.localized; - switch (specs.type) { - case presentation_type::none: - result.format = float_format::general; - break; - case presentation_type::general_upper: - result.upper = true; - FMT_FALLTHROUGH; - case presentation_type::general_lower: - result.format = float_format::general; - break; - case presentation_type::exp_upper: - result.upper = true; - FMT_FALLTHROUGH; - case presentation_type::exp_lower: - result.format = float_format::exp; - result.showpoint |= specs.precision != 0; - break; - case presentation_type::fixed_upper: - result.upper = true; - FMT_FALLTHROUGH; - case presentation_type::fixed_lower: - result.format = float_format::fixed; - result.showpoint |= specs.precision != 0; - break; - case presentation_type::hexfloat_upper: - result.upper = true; - FMT_FALLTHROUGH; - case presentation_type::hexfloat_lower: - result.format = float_format::hex; - break; - default: - eh.on_error("invalid type specifier"); - break; - } - return result; -} - -template -FMT_CONSTEXPR auto check_cstring_type_spec(presentation_type type, ErrorHandler&& eh = {}) -> bool { - if (type == presentation_type::none || type == presentation_type::string || - type == presentation_type::debug) - return true; - if (type != presentation_type::pointer) eh.on_error("invalid type specifier"); - return false; -} - -template -FMT_CONSTEXPR void check_string_type_spec(presentation_type type, ErrorHandler&& eh = {}) { - if (type != presentation_type::none && type != presentation_type::string && - type != presentation_type::debug) - eh.on_error("invalid type specifier"); -} - -template -FMT_CONSTEXPR void check_pointer_type_spec(presentation_type type, ErrorHandler&& eh) { - if (type != presentation_type::none && type != presentation_type::pointer) - eh.on_error("invalid type specifier"); -} - -// A parse_format_specs handler that checks if specifiers are consistent with -// the argument type. -template -class specs_checker : public Handler { -private: - detail::type arg_type_; - - FMT_CONSTEXPR void require_numeric_argument() { - if (!is_arithmetic_type(arg_type_)) - this->on_error("format specifier requires numeric argument"); - } - -public: - FMT_CONSTEXPR specs_checker(const Handler& handler, detail::type arg_type) - : Handler(handler), - arg_type_(arg_type) {} - - FMT_CONSTEXPR void on_align(align_t align) { - if (align == align::numeric) require_numeric_argument(); - Handler::on_align(align); - } - - FMT_CONSTEXPR void on_sign(sign_t s) { - require_numeric_argument(); - if (is_integral_type(arg_type_) && arg_type_ != type::int_type && - arg_type_ != type::long_long_type && arg_type_ != type::int128_type && - arg_type_ != type::char_type) { - this->on_error("format specifier requires signed argument"); - } - Handler::on_sign(s); - } - - FMT_CONSTEXPR void on_hash() { - require_numeric_argument(); - Handler::on_hash(); - } - - FMT_CONSTEXPR void on_localized() { - require_numeric_argument(); - Handler::on_localized(); - } - - FMT_CONSTEXPR void on_zero() { - require_numeric_argument(); - Handler::on_zero(); - } - - FMT_CONSTEXPR void end_precision() { - if (is_integral_type(arg_type_) || arg_type_ == type::pointer_type) - this->on_error("precision not allowed for this argument type"); - } -}; - -constexpr int invalid_arg_index = -1; - -#if FMT_USE_NONTYPE_TEMPLATE_ARGS -template -constexpr auto get_arg_index_by_name(basic_string_view name) -> int { - if constexpr (detail::is_statically_named_arg()) { - if (name == T::name) return N; - } - if constexpr (sizeof...(Args) > 0) return get_arg_index_by_name(name); - (void)name; // Workaround an MSVC bug about "unused" parameter. - return invalid_arg_index; -} -#endif - -template -FMT_CONSTEXPR auto get_arg_index_by_name(basic_string_view name) -> int { -#if FMT_USE_NONTYPE_TEMPLATE_ARGS - if constexpr (sizeof...(Args) > 0) return get_arg_index_by_name<0, Args...>(name); -#endif - (void)name; - return invalid_arg_index; -} - -template -class format_string_checker { -private: - // In the future basic_format_parse_context will replace compile_parse_context - // here and will use is_constant_evaluated and downcasting to access the data - // needed for compile-time checks: https://godbolt.org/z/GvWzcTjh1. - using parse_context_type = compile_parse_context; - static constexpr int num_args = sizeof...(Args); - - // Format specifier parsing function. - using parse_func = const Char* (*)(parse_context_type&); - - parse_context_type context_; - parse_func parse_funcs_[num_args > 0 ? static_cast(num_args) : 1]; - type types_[num_args > 0 ? static_cast(num_args) : 1]; - -public: - explicit FMT_CONSTEXPR format_string_checker(basic_string_view format_str, - ErrorHandler eh) - : context_(format_str, num_args, types_, eh), - parse_funcs_{&parse_format_specs...}, - types_{mapped_type_constant>::value...} {} - - FMT_CONSTEXPR void on_text(const Char*, const Char*) {} - - FMT_CONSTEXPR auto on_arg_id() -> int { return context_.next_arg_id(); } - FMT_CONSTEXPR auto on_arg_id(int id) -> int { return context_.check_arg_id(id), id; } - FMT_CONSTEXPR auto on_arg_id(basic_string_view id) -> int { -#if FMT_USE_NONTYPE_TEMPLATE_ARGS - auto index = get_arg_index_by_name(id); - if (index == invalid_arg_index) on_error("named argument is not found"); - return context_.check_arg_id(index), index; -#else - (void)id; - on_error("compile-time checks for named arguments require C++20 support"); - return 0; -#endif - } - - FMT_CONSTEXPR void on_replacement_field(int, const Char*) {} - - FMT_CONSTEXPR auto on_format_specs(int id, const Char* begin, const Char*) -> const Char* { - context_.advance_to(context_.begin() + (begin - &*context_.begin())); - // id >= 0 check is a workaround for gcc 10 bug (#2065). - return id >= 0 && id < num_args ? parse_funcs_[id](context_) : begin; - } - - FMT_CONSTEXPR void on_error(const char* message) { context_.on_error(message); } -}; - -// Reports a compile-time error if S is not a valid format string. -template ::value)> -FMT_INLINE void check_format_string(const S&) { -#ifdef FMT_ENFORCE_COMPILE_STRING - static_assert(is_compile_string::value, - "FMT_ENFORCE_COMPILE_STRING requires all format strings to use " - "FMT_STRING."); -#endif -} -template ::value)> -void check_format_string(S format_str) { - FMT_CONSTEXPR auto s = basic_string_view(format_str); - using checker = - format_string_checker...>; - FMT_CONSTEXPR bool invalid_format = (parse_format_string(s, checker(s, {})), true); - ignore_unused(invalid_format); -} - -template -void vformat_to(buffer& buf, - basic_string_view fmt, - basic_format_args)> args, - locale_ref loc = {}); - -FMT_API void vprint_mojibake(std::FILE*, string_view, format_args); -#ifndef _WIN32 -inline void vprint_mojibake(std::FILE*, string_view, format_args) {} -#endif -FMT_END_DETAIL_NAMESPACE - -// A formatter specialization for the core types corresponding to detail::type -// constants. -template -struct formatter::value != detail::type::custom_type>> { -private: - detail::dynamic_format_specs specs_; - -public: - // Parses format specifiers stopping either at the end of the range or at the - // terminating '}'. - template - FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { - auto begin = ctx.begin(), end = ctx.end(); - if (begin == end) return begin; - using handler_type = detail::dynamic_specs_handler; - auto type = detail::type_constant::value; - auto checker = detail::specs_checker(handler_type(specs_, ctx), type); - auto it = detail::parse_format_specs(begin, end, checker); - auto eh = ctx.error_handler(); - switch (type) { - case detail::type::none_type: - FMT_ASSERT(false, "invalid argument type"); - break; - case detail::type::bool_type: - if (specs_.type == presentation_type::none || - specs_.type == presentation_type::string) { - break; - } - FMT_FALLTHROUGH; - case detail::type::int_type: - case detail::type::uint_type: - case detail::type::long_long_type: - case detail::type::ulong_long_type: - case detail::type::int128_type: - case detail::type::uint128_type: - detail::check_int_type_spec(specs_.type, eh); - break; - case detail::type::char_type: - detail::check_char_specs(specs_, eh); - break; - case detail::type::float_type: - if (detail::const_check(FMT_USE_FLOAT)) - detail::parse_float_type_spec(specs_, eh); - else - FMT_ASSERT(false, "float support disabled"); - break; - case detail::type::double_type: - if (detail::const_check(FMT_USE_DOUBLE)) - detail::parse_float_type_spec(specs_, eh); - else - FMT_ASSERT(false, "double support disabled"); - break; - case detail::type::long_double_type: - if (detail::const_check(FMT_USE_LONG_DOUBLE)) - detail::parse_float_type_spec(specs_, eh); - else - FMT_ASSERT(false, "long double support disabled"); - break; - case detail::type::cstring_type: - detail::check_cstring_type_spec(specs_.type, eh); - break; - case detail::type::string_type: - detail::check_string_type_spec(specs_.type, eh); - break; - case detail::type::pointer_type: - detail::check_pointer_type_spec(specs_.type, eh); - break; - case detail::type::custom_type: - // Custom format specifiers are checked in parse functions of - // formatter specializations. - break; - } - return it; - } - - template ::value, - enable_if_t<(U == detail::type::string_type || U == detail::type::cstring_type || - U == detail::type::char_type), - int> = 0> - FMT_CONSTEXPR void set_debug_format() { - specs_.type = presentation_type::debug; - } - - template - FMT_CONSTEXPR auto format(const T& val, FormatContext& ctx) const -> decltype(ctx.out()); -}; - -#define FMT_FORMAT_AS(Type, Base) \ - template \ - struct formatter : formatter { \ - template \ - auto format(Type const& val, FormatContext& ctx) const -> decltype(ctx.out()) { \ - return formatter::format(static_cast(val), ctx); \ - } \ - } - -FMT_FORMAT_AS(signed char, int); -FMT_FORMAT_AS(unsigned char, unsigned); -FMT_FORMAT_AS(short, int); -FMT_FORMAT_AS(unsigned short, unsigned); -FMT_FORMAT_AS(long, long long); -FMT_FORMAT_AS(unsigned long, unsigned long long); -FMT_FORMAT_AS(Char*, const Char*); -FMT_FORMAT_AS(std::basic_string, basic_string_view); -FMT_FORMAT_AS(std::nullptr_t, const void*); -FMT_FORMAT_AS(detail::std_string_view, basic_string_view); - -template -struct basic_runtime { - basic_string_view str; -}; - -/** A compile-time format string. */ -template -class basic_format_string { -private: - basic_string_view str_; - -public: - template >::value)> - FMT_CONSTEVAL FMT_INLINE basic_format_string(const S& s) - : str_(s) { - static_assert( - detail::count<(std::is_base_of>::value && - std::is_reference::value)...>() == 0, - "passing views as lvalues is disallowed"); -#ifdef FMT_HAS_CONSTEVAL - if constexpr (detail::count_named_args() == - detail::count_statically_named_args()) { - using checker = - detail::format_string_checker...>; - detail::parse_format_string(str_, checker(s, {})); - } -#else - detail::check_format_string(s); -#endif - } - basic_format_string(basic_runtime r) - : str_(r.str) {} - - FMT_INLINE operator basic_string_view() const { return str_; } -}; - -#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 -// Workaround broken conversion on older gcc. -template -using format_string = string_view; -inline auto runtime(string_view s) -> string_view { return s; } -#else -template -using format_string = basic_format_string...>; -/** - \rst - Creates a runtime format string. - - **Example**:: - - // Check format string at runtime instead of compile-time. - fmt::print(fmt::runtime("{:d}"), "I am not a number"); - \endrst - */ -inline auto runtime(string_view s) -> basic_runtime { return {{s}}; } -#endif - -FMT_API auto vformat(string_view fmt, format_args args) -> std::string; - -/** - \rst - Formats ``args`` according to specifications in ``fmt`` and returns the result - as a string. - - **Example**:: - - #include - std::string message = fmt::format("The answer is {}.", 42); - \endrst -*/ -template -FMT_NODISCARD FMT_INLINE auto format(format_string fmt, T&&... args) -> std::string { - return vformat(fmt, fmt::make_format_args(args...)); -} - -/** Formats a string and writes the output to ``out``. */ -template ::value)> -auto vformat_to(OutputIt out, string_view fmt, format_args args) -> OutputIt { - using detail::get_buffer; - auto&& buf = get_buffer(out); - detail::vformat_to(buf, fmt, args, {}); - return detail::get_iterator(buf); -} - -/** - \rst - Formats ``args`` according to specifications in ``fmt``, writes the result to - the output iterator ``out`` and returns the iterator past the end of the output - range. `format_to` does not append a terminating null character. - - **Example**:: - - auto out = std::vector(); - fmt::format_to(std::back_inserter(out), "{}", 42); - \endrst - */ -template ::value)> -FMT_INLINE auto format_to(OutputIt out, format_string fmt, T&&... args) -> OutputIt { - return vformat_to(out, fmt, fmt::make_format_args(args...)); -} - -template -struct format_to_n_result { - /** Iterator past the end of the output range. */ - OutputIt out; - /** Total (not truncated) output size. */ - size_t size; -}; - -template ::value)> -auto vformat_to_n(OutputIt out, size_t n, string_view fmt, format_args args) - -> format_to_n_result { - using traits = detail::fixed_buffer_traits; - auto buf = detail::iterator_buffer(out, n); - detail::vformat_to(buf, fmt, args, {}); - return {buf.out(), buf.count()}; -} - -/** - \rst - Formats ``args`` according to specifications in ``fmt``, writes up to ``n`` - characters of the result to the output iterator ``out`` and returns the total - (not truncated) output size and the iterator past the end of the output range. - `format_to_n` does not append a terminating null character. - \endrst - */ -template ::value)> -FMT_INLINE auto format_to_n(OutputIt out, size_t n, format_string fmt, T&&... args) - -> format_to_n_result { - return vformat_to_n(out, n, fmt, fmt::make_format_args(args...)); -} - -/** Returns the number of chars in the output of ``format(fmt, args...)``. */ -template -FMT_NODISCARD FMT_INLINE auto formatted_size(format_string fmt, T&&... args) -> size_t { - auto buf = detail::counting_buffer<>(); - detail::vformat_to(buf, string_view(fmt), fmt::make_format_args(args...), {}); - return buf.count(); -} - -FMT_API void vprint(string_view fmt, format_args args); -FMT_API void vprint(std::FILE* f, string_view fmt, format_args args); - -/** - \rst - Formats ``args`` according to specifications in ``fmt`` and writes the output - to ``stdout``. - - **Example**:: - - fmt::print("Elapsed time: {0:.2f} seconds", 1.23); - \endrst - */ -template -FMT_INLINE void print(format_string fmt, T&&... args) { - const auto& vargs = fmt::make_format_args(args...); - return detail::is_utf8() ? vprint(fmt, vargs) : detail::vprint_mojibake(stdout, fmt, vargs); -} - -/** - \rst - Formats ``args`` according to specifications in ``fmt`` and writes the - output to the file ``f``. - - **Example**:: - - fmt::print(stderr, "Don't {}!", "panic"); - \endrst - */ -template -FMT_INLINE void print(std::FILE* f, format_string fmt, T&&... args) { - const auto& vargs = fmt::make_format_args(args...); - return detail::is_utf8() ? vprint(f, fmt, vargs) : detail::vprint_mojibake(f, fmt, vargs); -} - -FMT_MODULE_EXPORT_END -FMT_GCC_PRAGMA("GCC pop_options") -FMT_END_NAMESPACE - -#ifdef FMT_HEADER_ONLY - #include "format.h" -#endif -#endif // FMT_CORE_H_ +#include "format.h" diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/fmt.license.rst b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/fmt.license.rst index f0ec3db4d..1cd1ef926 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/fmt.license.rst +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/fmt.license.rst @@ -1,4 +1,4 @@ -Copyright (c) 2012 - present, Victor Zverovich +Copyright (c) 2012 - present, Victor Zverovich and {fmt} contributors Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/format-inl.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/format-inl.h index 989794229..a1e016611 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/format-inl.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/format-inl.h @@ -8,1656 +8,1937 @@ #ifndef FMT_FORMAT_INL_H_ #define FMT_FORMAT_INL_H_ -#include -#include -#include // errno -#include -#include -#include -#include // std::memmove -#include -#include - -#ifndef FMT_STATIC_THOUSANDS_SEPARATOR - #include +#ifndef FMT_MODULE +# include +# include // errno +# include +# include +# include #endif -#ifdef _WIN32 - #include // _isatty +#if defined(_WIN32) && !defined(FMT_USE_WRITE_CONSOLE) +# include // _isatty #endif #include "format.h" +#if FMT_USE_LOCALE +# include +#endif + +#ifndef FMT_FUNC +# define FMT_FUNC +#endif + FMT_BEGIN_NAMESPACE namespace detail { FMT_FUNC void assert_fail(const char* file, int line, const char* message) { - // Use unchecked std::fprintf to avoid triggering another assertion when - // writing to stderr fails - std::fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message); - // Chosen instead of std::abort to satisfy Clang in CUDA mode during device - // code pass. - std::terminate(); + // Use unchecked std::fprintf to avoid triggering another assertion when + // writing to stderr fails. + fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message); + abort(); } -FMT_FUNC void throw_format_error(const char* message) { FMT_THROW(format_error(message)); } - -FMT_FUNC void format_error_code(detail::buffer& out, - int error_code, +FMT_FUNC void format_error_code(detail::buffer& out, int error_code, string_view message) noexcept { - // Report error code making sure that the output fits into - // inline_buffer_size to avoid dynamic memory allocation and potential - // bad_alloc. - out.try_resize(0); - static const char SEP[] = ": "; - static const char ERROR_STR[] = "error "; - // Subtract 2 to account for terminating null characters in SEP and ERROR_STR. - size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2; - auto abs_value = static_cast>(error_code); - if (detail::is_negative(error_code)) { - abs_value = 0 - abs_value; - ++error_code_size; - } - error_code_size += detail::to_unsigned(detail::count_digits(abs_value)); - auto it = buffer_appender(out); - if (message.size() <= inline_buffer_size - error_code_size) - format_to(it, FMT_STRING("{}{}"), message, SEP); - format_to(it, FMT_STRING("{}{}"), ERROR_STR, error_code); - FMT_ASSERT(out.size() <= inline_buffer_size, ""); + // Report error code making sure that the output fits into + // inline_buffer_size to avoid dynamic memory allocation and potential + // bad_alloc. + out.try_resize(0); + static const char SEP[] = ": "; + static const char ERROR_STR[] = "error "; + // Subtract 2 to account for terminating null characters in SEP and ERROR_STR. + size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2; + auto abs_value = static_cast>(error_code); + if (detail::is_negative(error_code)) { + abs_value = 0 - abs_value; + ++error_code_size; + } + error_code_size += detail::to_unsigned(detail::count_digits(abs_value)); + auto it = appender(out); + if (message.size() <= inline_buffer_size - error_code_size) + fmt::format_to(it, FMT_STRING("{}{}"), message, SEP); + fmt::format_to(it, FMT_STRING("{}{}"), ERROR_STR, error_code); + FMT_ASSERT(out.size() <= inline_buffer_size, ""); } -FMT_FUNC void report_error(format_func func, int error_code, const char* message) noexcept { - memory_buffer full_message; - func(full_message, error_code, message); - // Don't use fwrite_fully because the latter may throw. - if (std::fwrite(full_message.data(), full_message.size(), 1, stderr) > 0) - std::fputc('\n', stderr); +FMT_FUNC void do_report_error(format_func func, int error_code, + const char* message) noexcept { + memory_buffer full_message; + func(full_message, error_code, message); + // Don't use fwrite_all because the latter may throw. + if (std::fwrite(full_message.data(), full_message.size(), 1, stderr) > 0) + std::fputc('\n', stderr); } // A wrapper around fwrite that throws on error. -inline void fwrite_fully(const void* ptr, size_t size, size_t count, FILE* stream) { - size_t written = std::fwrite(ptr, size, count, stream); - if (written < count) FMT_THROW(system_error(errno, FMT_STRING("cannot write to file"))); +inline void fwrite_all(const void* ptr, size_t count, FILE* stream) { + size_t written = std::fwrite(ptr, 1, count, stream); + if (written < count) + FMT_THROW(system_error(errno, FMT_STRING("cannot write to file"))); } -#ifndef FMT_STATIC_THOUSANDS_SEPARATOR +#if FMT_USE_LOCALE +using std::locale; +using std::numpunct; +using std::use_facet; + template -locale_ref::locale_ref(const Locale& loc) - : locale_(&loc) { - static_assert(std::is_same::value, ""); +locale_ref::locale_ref(const Locale& loc) : locale_(&loc) { + static_assert(std::is_same::value, ""); } +#else +struct locale {}; +template struct numpunct { + auto grouping() const -> std::string { return "\03"; } + auto thousands_sep() const -> Char { return ','; } + auto decimal_point() const -> Char { return '.'; } +}; +template Facet use_facet(locale) { return {}; } +#endif // FMT_USE_LOCALE -template -Locale locale_ref::get() const { - static_assert(std::is_same::value, ""); - return locale_ ? *static_cast(locale_) : std::locale(); +template auto locale_ref::get() const -> Locale { + static_assert(std::is_same::value, ""); +#if FMT_USE_LOCALE + if (locale_) return *static_cast(locale_); +#endif + return locale(); } template FMT_FUNC auto thousands_sep_impl(locale_ref loc) -> thousands_sep_result { - auto& facet = std::use_facet>(loc.get()); - auto grouping = facet.grouping(); - auto thousands_sep = grouping.empty() ? Char() : facet.thousands_sep(); - return {std::move(grouping), thousands_sep}; + auto&& facet = use_facet>(loc.get()); + auto grouping = facet.grouping(); + auto thousands_sep = grouping.empty() ? Char() : facet.thousands_sep(); + return {std::move(grouping), thousands_sep}; } template -FMT_FUNC Char decimal_point_impl(locale_ref loc) { - return std::use_facet>(loc.get()).decimal_point(); +FMT_FUNC auto decimal_point_impl(locale_ref loc) -> Char { + return use_facet>(loc.get()).decimal_point(); } -#else -template -FMT_FUNC auto thousands_sep_impl(locale_ref) -> thousands_sep_result { - return {"\03", FMT_STATIC_THOUSANDS_SEPARATOR}; -} -template -FMT_FUNC Char decimal_point_impl(locale_ref) { - return '.'; + +#if FMT_USE_LOCALE +FMT_FUNC auto write_loc(appender out, loc_value value, + const format_specs& specs, locale_ref loc) -> bool { + auto locale = loc.get(); + // We cannot use the num_put facet because it may produce output in + // a wrong encoding. + using facet = format_facet; + if (std::has_facet(locale)) + return use_facet(locale).put(out, value, specs); + return facet(locale).put(out, value, specs); } #endif } // namespace detail -#if !FMT_MSC_VERSION -FMT_API FMT_FUNC format_error::~format_error() noexcept = default; +FMT_FUNC void report_error(const char* message) { +#if FMT_USE_EXCEPTIONS + // Use FMT_THROW instead of throw to avoid bogus unreachable code warnings + // from MSVC. + FMT_THROW(format_error(message)); +#else + fputs(message, stderr); + abort(); #endif - -FMT_FUNC std::system_error vsystem_error(int error_code, string_view format_str, format_args args) { - auto ec = std::error_code(error_code, std::generic_category()); - return std::system_error(ec, vformat(format_str, args)); } -namespace detail { +template typename Locale::id format_facet::id; -template -inline bool operator==(basic_fp x, basic_fp y) { - return x.f == y.f && x.e == y.e; +template format_facet::format_facet(Locale& loc) { + auto& np = detail::use_facet>(loc); + grouping_ = np.grouping(); + if (!grouping_.empty()) separator_ = std::string(1, np.thousands_sep()); } -// Compilers should be able to optimize this into the ror instruction. -FMT_CONSTEXPR inline uint32_t rotr(uint32_t n, uint32_t r) noexcept { - r &= 31; - return (n >> r) | (n << (32 - r)); -} -FMT_CONSTEXPR inline uint64_t rotr(uint64_t n, uint32_t r) noexcept { - r &= 63; - return (n >> r) | (n << (64 - r)); +#if FMT_USE_LOCALE +template <> +FMT_API FMT_FUNC auto format_facet::do_put( + appender out, loc_value val, const format_specs& specs) const -> bool { + return val.visit( + detail::loc_writer<>{out, specs, separator_, grouping_, decimal_point_}); } +#endif -// Computes 128-bit result of multiplication of two 64-bit unsigned integers. -inline uint128_fallback umul128(uint64_t x, uint64_t y) noexcept { -#if FMT_USE_INT128 - auto p = static_cast(x) * static_cast(y); - return {static_cast(p >> 64), static_cast(p)}; -#elif defined(_MSC_VER) && defined(_M_X64) - auto result = uint128_fallback(); - result.lo_ = _umul128(x, y, &result.hi_); - return result; -#else - const uint64_t mask = static_cast(max_value()); - - uint64_t a = x >> 32; - uint64_t b = x & mask; - uint64_t c = y >> 32; - uint64_t d = y & mask; - - uint64_t ac = a * c; - uint64_t bc = b * c; - uint64_t ad = a * d; - uint64_t bd = b * d; +FMT_FUNC auto vsystem_error(int error_code, string_view fmt, format_args args) + -> std::system_error { + auto ec = std::error_code(error_code, std::generic_category()); + return std::system_error(ec, vformat(fmt, args)); +} - uint64_t intermediate = (bd >> 32) + (ad & mask) + (bc & mask); +namespace detail { - return {ac + (intermediate >> 32) + (ad >> 32) + (bc >> 32), - (intermediate << 32) + (bd & mask)}; -#endif +template +inline auto operator==(basic_fp x, basic_fp y) -> bool { + return x.f == y.f && x.e == y.e; } -// Implementation of Dragonbox algorithm: https://github.com/jk-jeon/dragonbox. -namespace dragonbox { -// Computes upper 64 bits of multiplication of two 64-bit unsigned integers. -inline uint64_t umul128_upper64(uint64_t x, uint64_t y) noexcept { -#if FMT_USE_INT128 - auto p = static_cast(x) * static_cast(y); - return static_cast(p >> 64); -#elif defined(_MSC_VER) && defined(_M_X64) - return __umulh(x, y); -#else - return umul128(x, y).high(); -#endif +// Compilers should be able to optimize this into the ror instruction. +FMT_CONSTEXPR inline auto rotr(uint32_t n, uint32_t r) noexcept -> uint32_t { + r &= 31; + return (n >> r) | (n << (32 - r)); } - -// Computes upper 128 bits of multiplication of a 64-bit unsigned integer and a -// 128-bit unsigned integer. -inline uint128_fallback umul192_upper128(uint64_t x, uint128_fallback y) noexcept { - uint128_fallback r = umul128(x, y.high()); - r += umul128_upper64(x, y.low()); - return r; +FMT_CONSTEXPR inline auto rotr(uint64_t n, uint32_t r) noexcept -> uint64_t { + r &= 63; + return (n >> r) | (n << (64 - r)); } +// Implementation of Dragonbox algorithm: https://github.com/jk-jeon/dragonbox. +namespace dragonbox { // Computes upper 64 bits of multiplication of a 32-bit unsigned integer and a // 64-bit unsigned integer. -inline uint64_t umul96_upper64(uint32_t x, uint64_t y) noexcept { - return umul128_upper64(static_cast(x) << 32, y); +inline auto umul96_upper64(uint32_t x, uint64_t y) noexcept -> uint64_t { + return umul128_upper64(static_cast(x) << 32, y); } // Computes lower 128 bits of multiplication of a 64-bit unsigned integer and a // 128-bit unsigned integer. -inline uint128_fallback umul192_lower128(uint64_t x, uint128_fallback y) noexcept { - uint64_t high = x * y.high(); - uint128_fallback high_low = umul128(x, y.low()); - return {high + high_low.high(), high_low.low()}; +inline auto umul192_lower128(uint64_t x, uint128_fallback y) noexcept + -> uint128_fallback { + uint64_t high = x * y.high(); + uint128_fallback high_low = umul128(x, y.low()); + return {high + high_low.high(), high_low.low()}; } // Computes lower 64 bits of multiplication of a 32-bit unsigned integer and a // 64-bit unsigned integer. -inline uint64_t umul96_lower64(uint32_t x, uint64_t y) noexcept { return x * y; } - -// Computes floor(log10(pow(2, e))) for e in [-2620, 2620] using the method from -// https://fmt.dev/papers/Dragonbox.pdf#page=28, section 6.1. -inline int floor_log10_pow2(int e) noexcept { - FMT_ASSERT(e <= 2620 && e >= -2620, "too large exponent"); - static_assert((-1 >> 1) == -1, "right shift is not arithmetic"); - return (e * 315653) >> 20; +inline auto umul96_lower64(uint32_t x, uint64_t y) noexcept -> uint64_t { + return x * y; } // Various fast log computations. -inline int floor_log2_pow10(int e) noexcept { - FMT_ASSERT(e <= 1233 && e >= -1233, "too large exponent"); - return (e * 1741647) >> 19; -} -inline int floor_log10_pow2_minus_log10_4_over_3(int e) noexcept { - FMT_ASSERT(e <= 2936 && e >= -2985, "too large exponent"); - return (e * 631305 - 261663) >> 21; +inline auto floor_log10_pow2_minus_log10_4_over_3(int e) noexcept -> int { + FMT_ASSERT(e <= 2936 && e >= -2985, "too large exponent"); + return (e * 631305 - 261663) >> 21; } -static constexpr struct { - uint32_t divisor; - int shift_amount; +FMT_INLINE_VARIABLE constexpr struct div_small_pow10_infos_struct { + uint32_t divisor; + int shift_amount; } div_small_pow10_infos[] = {{10, 16}, {100, 16}}; // Replaces n by floor(n / pow(10, N)) returning true if and only if n is // divisible by pow(10, N). // Precondition: n <= pow(10, N + 1). template -bool check_divisibility_and_divide_by_pow10(uint32_t& n) noexcept { - // The numbers below are chosen such that: - // 1. floor(n/d) = floor(nm / 2^k) where d=10 or d=100, - // 2. nm mod 2^k < m if and only if n is divisible by d, - // where m is magic_number, k is shift_amount - // and d is divisor. - // - // Item 1 is a common technique of replacing division by a constant with - // multiplication, see e.g. "Division by Invariant Integers Using - // Multiplication" by Granlund and Montgomery (1994). magic_number (m) is set - // to ceil(2^k/d) for large enough k. - // The idea for item 2 originates from Schubfach. - constexpr auto info = div_small_pow10_infos[N - 1]; - FMT_ASSERT(n <= info.divisor * 10, "n is too large"); - constexpr uint32_t magic_number = (1u << info.shift_amount) / info.divisor + 1; - n *= magic_number; - const uint32_t comparison_mask = (1u << info.shift_amount) - 1; - bool result = (n & comparison_mask) < magic_number; - n >>= info.shift_amount; - return result; +auto check_divisibility_and_divide_by_pow10(uint32_t& n) noexcept -> bool { + // The numbers below are chosen such that: + // 1. floor(n/d) = floor(nm / 2^k) where d=10 or d=100, + // 2. nm mod 2^k < m if and only if n is divisible by d, + // where m is magic_number, k is shift_amount + // and d is divisor. + // + // Item 1 is a common technique of replacing division by a constant with + // multiplication, see e.g. "Division by Invariant Integers Using + // Multiplication" by Granlund and Montgomery (1994). magic_number (m) is set + // to ceil(2^k/d) for large enough k. + // The idea for item 2 originates from Schubfach. + constexpr auto info = div_small_pow10_infos[N - 1]; + FMT_ASSERT(n <= info.divisor * 10, "n is too large"); + constexpr uint32_t magic_number = + (1u << info.shift_amount) / info.divisor + 1; + n *= magic_number; + const uint32_t comparison_mask = (1u << info.shift_amount) - 1; + bool result = (n & comparison_mask) < magic_number; + n >>= info.shift_amount; + return result; } // Computes floor(n / pow(10, N)) for small n and N. // Precondition: n <= pow(10, N + 1). -template -uint32_t small_division_by_pow10(uint32_t n) noexcept { - constexpr auto info = div_small_pow10_infos[N - 1]; - FMT_ASSERT(n <= info.divisor * 10, "n is too large"); - constexpr uint32_t magic_number = (1u << info.shift_amount) / info.divisor + 1; - return (n * magic_number) >> info.shift_amount; +template auto small_division_by_pow10(uint32_t n) noexcept -> uint32_t { + constexpr auto info = div_small_pow10_infos[N - 1]; + FMT_ASSERT(n <= info.divisor * 10, "n is too large"); + constexpr uint32_t magic_number = + (1u << info.shift_amount) / info.divisor + 1; + return (n * magic_number) >> info.shift_amount; } // Computes floor(n / 10^(kappa + 1)) (float) -inline uint32_t divide_by_10_to_kappa_plus_1(uint32_t n) noexcept { - // 1374389535 = ceil(2^37/100) - return static_cast((static_cast(n) * 1374389535) >> 37); +inline auto divide_by_10_to_kappa_plus_1(uint32_t n) noexcept -> uint32_t { + // 1374389535 = ceil(2^37/100) + return static_cast((static_cast(n) * 1374389535) >> 37); } // Computes floor(n / 10^(kappa + 1)) (double) -inline uint64_t divide_by_10_to_kappa_plus_1(uint64_t n) noexcept { - // 2361183241434822607 = ceil(2^(64+7)/1000) - return umul128_upper64(n, 2361183241434822607ull) >> 7; +inline auto divide_by_10_to_kappa_plus_1(uint64_t n) noexcept -> uint64_t { + // 2361183241434822607 = ceil(2^(64+7)/1000) + return umul128_upper64(n, 2361183241434822607ull) >> 7; } // Various subroutines using pow10 cache -template -struct cache_accessor; - -template <> -struct cache_accessor { - using carrier_uint = float_info::carrier_uint; - using cache_entry_type = uint64_t; - - static uint64_t get_cached_power(int k) noexcept { - FMT_ASSERT(k >= float_info::min_k && k <= float_info::max_k, - "k is out of range"); - static constexpr const uint64_t pow10_significands[] = { - 0x81ceb32c4b43fcf5, 0xa2425ff75e14fc32, 0xcad2f7f5359a3b3f, 0xfd87b5f28300ca0e, - 0x9e74d1b791e07e49, 0xc612062576589ddb, 0xf79687aed3eec552, 0x9abe14cd44753b53, - 0xc16d9a0095928a28, 0xf1c90080baf72cb2, 0x971da05074da7bef, 0xbce5086492111aeb, - 0xec1e4a7db69561a6, 0x9392ee8e921d5d08, 0xb877aa3236a4b44a, 0xe69594bec44de15c, - 0x901d7cf73ab0acda, 0xb424dc35095cd810, 0xe12e13424bb40e14, 0x8cbccc096f5088cc, - 0xafebff0bcb24aaff, 0xdbe6fecebdedd5bf, 0x89705f4136b4a598, 0xabcc77118461cefd, - 0xd6bf94d5e57a42bd, 0x8637bd05af6c69b6, 0xa7c5ac471b478424, 0xd1b71758e219652c, - 0x83126e978d4fdf3c, 0xa3d70a3d70a3d70b, 0xcccccccccccccccd, 0x8000000000000000, - 0xa000000000000000, 0xc800000000000000, 0xfa00000000000000, 0x9c40000000000000, - 0xc350000000000000, 0xf424000000000000, 0x9896800000000000, 0xbebc200000000000, - 0xee6b280000000000, 0x9502f90000000000, 0xba43b74000000000, 0xe8d4a51000000000, - 0x9184e72a00000000, 0xb5e620f480000000, 0xe35fa931a0000000, 0x8e1bc9bf04000000, - 0xb1a2bc2ec5000000, 0xde0b6b3a76400000, 0x8ac7230489e80000, 0xad78ebc5ac620000, - 0xd8d726b7177a8000, 0x878678326eac9000, 0xa968163f0a57b400, 0xd3c21bcecceda100, - 0x84595161401484a0, 0xa56fa5b99019a5c8, 0xcecb8f27f4200f3a, 0x813f3978f8940985, - 0xa18f07d736b90be6, 0xc9f2c9cd04674edf, 0xfc6f7c4045812297, 0x9dc5ada82b70b59e, - 0xc5371912364ce306, 0xf684df56c3e01bc7, 0x9a130b963a6c115d, 0xc097ce7bc90715b4, - 0xf0bdc21abb48db21, 0x96769950b50d88f5, 0xbc143fa4e250eb32, 0xeb194f8e1ae525fe, - 0x92efd1b8d0cf37bf, 0xb7abc627050305ae, 0xe596b7b0c643c71a, 0x8f7e32ce7bea5c70, - 0xb35dbf821ae4f38c, 0xe0352f62a19e306f}; - return pow10_significands[k - float_info::min_k]; - } - - struct compute_mul_result { - carrier_uint result; - bool is_integer; - }; - struct compute_mul_parity_result { - bool parity; - bool is_integer; - }; - - static compute_mul_result compute_mul(carrier_uint u, const cache_entry_type& cache) noexcept { - auto r = umul96_upper64(u, cache); - return {static_cast(r >> 32), static_cast(r) == 0}; - } - - static uint32_t compute_delta(const cache_entry_type& cache, int beta) noexcept { - return static_cast(cache >> (64 - 1 - beta)); - } - - static compute_mul_parity_result compute_mul_parity(carrier_uint two_f, - const cache_entry_type& cache, - int beta) noexcept { - FMT_ASSERT(beta >= 1, ""); - FMT_ASSERT(beta < 64, ""); - - auto r = umul96_lower64(two_f, cache); - return {((r >> (64 - beta)) & 1) != 0, static_cast(r >> (32 - beta)) == 0}; - } - - static carrier_uint compute_left_endpoint_for_shorter_interval_case( - const cache_entry_type& cache, int beta) noexcept { - return static_cast((cache - (cache >> (num_significand_bits() + 2))) >> - (64 - num_significand_bits() - 1 - beta)); - } - - static carrier_uint compute_right_endpoint_for_shorter_interval_case( - const cache_entry_type& cache, int beta) noexcept { - return static_cast((cache + (cache >> (num_significand_bits() + 1))) >> - (64 - num_significand_bits() - 1 - beta)); - } - - static carrier_uint compute_round_up_for_shorter_interval_case(const cache_entry_type& cache, - int beta) noexcept { - return (static_cast(cache >> - (64 - num_significand_bits() - 2 - beta)) + - 1) / - 2; - } +template struct cache_accessor; + +template <> struct cache_accessor { + using carrier_uint = float_info::carrier_uint; + using cache_entry_type = uint64_t; + + static auto get_cached_power(int k) noexcept -> uint64_t { + FMT_ASSERT(k >= float_info::min_k && k <= float_info::max_k, + "k is out of range"); + static constexpr const uint64_t pow10_significands[] = { + 0x81ceb32c4b43fcf5, 0xa2425ff75e14fc32, 0xcad2f7f5359a3b3f, + 0xfd87b5f28300ca0e, 0x9e74d1b791e07e49, 0xc612062576589ddb, + 0xf79687aed3eec552, 0x9abe14cd44753b53, 0xc16d9a0095928a28, + 0xf1c90080baf72cb2, 0x971da05074da7bef, 0xbce5086492111aeb, + 0xec1e4a7db69561a6, 0x9392ee8e921d5d08, 0xb877aa3236a4b44a, + 0xe69594bec44de15c, 0x901d7cf73ab0acda, 0xb424dc35095cd810, + 0xe12e13424bb40e14, 0x8cbccc096f5088cc, 0xafebff0bcb24aaff, + 0xdbe6fecebdedd5bf, 0x89705f4136b4a598, 0xabcc77118461cefd, + 0xd6bf94d5e57a42bd, 0x8637bd05af6c69b6, 0xa7c5ac471b478424, + 0xd1b71758e219652c, 0x83126e978d4fdf3c, 0xa3d70a3d70a3d70b, + 0xcccccccccccccccd, 0x8000000000000000, 0xa000000000000000, + 0xc800000000000000, 0xfa00000000000000, 0x9c40000000000000, + 0xc350000000000000, 0xf424000000000000, 0x9896800000000000, + 0xbebc200000000000, 0xee6b280000000000, 0x9502f90000000000, + 0xba43b74000000000, 0xe8d4a51000000000, 0x9184e72a00000000, + 0xb5e620f480000000, 0xe35fa931a0000000, 0x8e1bc9bf04000000, + 0xb1a2bc2ec5000000, 0xde0b6b3a76400000, 0x8ac7230489e80000, + 0xad78ebc5ac620000, 0xd8d726b7177a8000, 0x878678326eac9000, + 0xa968163f0a57b400, 0xd3c21bcecceda100, 0x84595161401484a0, + 0xa56fa5b99019a5c8, 0xcecb8f27f4200f3a, 0x813f3978f8940985, + 0xa18f07d736b90be6, 0xc9f2c9cd04674edf, 0xfc6f7c4045812297, + 0x9dc5ada82b70b59e, 0xc5371912364ce306, 0xf684df56c3e01bc7, + 0x9a130b963a6c115d, 0xc097ce7bc90715b4, 0xf0bdc21abb48db21, + 0x96769950b50d88f5, 0xbc143fa4e250eb32, 0xeb194f8e1ae525fe, + 0x92efd1b8d0cf37bf, 0xb7abc627050305ae, 0xe596b7b0c643c71a, + 0x8f7e32ce7bea5c70, 0xb35dbf821ae4f38c, 0xe0352f62a19e306f}; + return pow10_significands[k - float_info::min_k]; + } + + struct compute_mul_result { + carrier_uint result; + bool is_integer; + }; + struct compute_mul_parity_result { + bool parity; + bool is_integer; + }; + + static auto compute_mul(carrier_uint u, + const cache_entry_type& cache) noexcept + -> compute_mul_result { + auto r = umul96_upper64(u, cache); + return {static_cast(r >> 32), + static_cast(r) == 0}; + } + + static auto compute_delta(const cache_entry_type& cache, int beta) noexcept + -> uint32_t { + return static_cast(cache >> (64 - 1 - beta)); + } + + static auto compute_mul_parity(carrier_uint two_f, + const cache_entry_type& cache, + int beta) noexcept + -> compute_mul_parity_result { + FMT_ASSERT(beta >= 1, ""); + FMT_ASSERT(beta < 64, ""); + + auto r = umul96_lower64(two_f, cache); + return {((r >> (64 - beta)) & 1) != 0, + static_cast(r >> (32 - beta)) == 0}; + } + + static auto compute_left_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return static_cast( + (cache - (cache >> (num_significand_bits() + 2))) >> + (64 - num_significand_bits() - 1 - beta)); + } + + static auto compute_right_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return static_cast( + (cache + (cache >> (num_significand_bits() + 1))) >> + (64 - num_significand_bits() - 1 - beta)); + } + + static auto compute_round_up_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return (static_cast( + cache >> (64 - num_significand_bits() - 2 - beta)) + + 1) / + 2; + } }; -template <> -struct cache_accessor { - using carrier_uint = float_info::carrier_uint; - using cache_entry_type = uint128_fallback; +template <> struct cache_accessor { + using carrier_uint = float_info::carrier_uint; + using cache_entry_type = uint128_fallback; - static uint128_fallback get_cached_power(int k) noexcept { - FMT_ASSERT(k >= float_info::min_k && k <= float_info::max_k, - "k is out of range"); + static auto get_cached_power(int k) noexcept -> uint128_fallback { + FMT_ASSERT(k >= float_info::min_k && k <= float_info::max_k, + "k is out of range"); - static constexpr const uint128_fallback pow10_significands[] = { + static constexpr const uint128_fallback pow10_significands[] = { #if FMT_USE_FULL_CACHE_DRAGONBOX - {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b}, - {0x9faacf3df73609b1, 0x77b191618c54e9ad}, - {0xc795830d75038c1d, 0xd59df5b9ef6a2418}, - {0xf97ae3d0d2446f25, 0x4b0573286b44ad1e}, - {0x9becce62836ac577, 0x4ee367f9430aec33}, - {0xc2e801fb244576d5, 0x229c41f793cda740}, - {0xf3a20279ed56d48a, 0x6b43527578c11110}, - {0x9845418c345644d6, 0x830a13896b78aaaa}, - {0xbe5691ef416bd60c, 0x23cc986bc656d554}, - {0xedec366b11c6cb8f, 0x2cbfbe86b7ec8aa9}, - {0x94b3a202eb1c3f39, 0x7bf7d71432f3d6aa}, - {0xb9e08a83a5e34f07, 0xdaf5ccd93fb0cc54}, - {0xe858ad248f5c22c9, 0xd1b3400f8f9cff69}, - {0x91376c36d99995be, 0x23100809b9c21fa2}, - {0xb58547448ffffb2d, 0xabd40a0c2832a78b}, - {0xe2e69915b3fff9f9, 0x16c90c8f323f516d}, - {0x8dd01fad907ffc3b, 0xae3da7d97f6792e4}, - {0xb1442798f49ffb4a, 0x99cd11cfdf41779d}, - {0xdd95317f31c7fa1d, 0x40405643d711d584}, - {0x8a7d3eef7f1cfc52, 0x482835ea666b2573}, - {0xad1c8eab5ee43b66, 0xda3243650005eed0}, - {0xd863b256369d4a40, 0x90bed43e40076a83}, - {0x873e4f75e2224e68, 0x5a7744a6e804a292}, - {0xa90de3535aaae202, 0x711515d0a205cb37}, - {0xd3515c2831559a83, 0x0d5a5b44ca873e04}, - {0x8412d9991ed58091, 0xe858790afe9486c3}, - {0xa5178fff668ae0b6, 0x626e974dbe39a873}, - {0xce5d73ff402d98e3, 0xfb0a3d212dc81290}, - {0x80fa687f881c7f8e, 0x7ce66634bc9d0b9a}, - {0xa139029f6a239f72, 0x1c1fffc1ebc44e81}, - {0xc987434744ac874e, 0xa327ffb266b56221}, - {0xfbe9141915d7a922, 0x4bf1ff9f0062baa9}, - {0x9d71ac8fada6c9b5, 0x6f773fc3603db4aa}, - {0xc4ce17b399107c22, 0xcb550fb4384d21d4}, - {0xf6019da07f549b2b, 0x7e2a53a146606a49}, - {0x99c102844f94e0fb, 0x2eda7444cbfc426e}, - {0xc0314325637a1939, 0xfa911155fefb5309}, - {0xf03d93eebc589f88, 0x793555ab7eba27cb}, - {0x96267c7535b763b5, 0x4bc1558b2f3458df}, - {0xbbb01b9283253ca2, 0x9eb1aaedfb016f17}, - {0xea9c227723ee8bcb, 0x465e15a979c1cadd}, - {0x92a1958a7675175f, 0x0bfacd89ec191eca}, - {0xb749faed14125d36, 0xcef980ec671f667c}, - {0xe51c79a85916f484, 0x82b7e12780e7401b}, - {0x8f31cc0937ae58d2, 0xd1b2ecb8b0908811}, - {0xb2fe3f0b8599ef07, 0x861fa7e6dcb4aa16}, - {0xdfbdcece67006ac9, 0x67a791e093e1d49b}, - {0x8bd6a141006042bd, 0xe0c8bb2c5c6d24e1}, - {0xaecc49914078536d, 0x58fae9f773886e19}, - {0xda7f5bf590966848, 0xaf39a475506a899f}, - {0x888f99797a5e012d, 0x6d8406c952429604}, - {0xaab37fd7d8f58178, 0xc8e5087ba6d33b84}, - {0xd5605fcdcf32e1d6, 0xfb1e4a9a90880a65}, - {0x855c3be0a17fcd26, 0x5cf2eea09a550680}, - {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f}, - {0xd0601d8efc57b08b, 0xf13b94daf124da27}, - {0x823c12795db6ce57, 0x76c53d08d6b70859}, - {0xa2cb1717b52481ed, 0x54768c4b0c64ca6f}, - {0xcb7ddcdda26da268, 0xa9942f5dcf7dfd0a}, - {0xfe5d54150b090b02, 0xd3f93b35435d7c4d}, - {0x9efa548d26e5a6e1, 0xc47bc5014a1a6db0}, - {0xc6b8e9b0709f109a, 0x359ab6419ca1091c}, - {0xf867241c8cc6d4c0, 0xc30163d203c94b63}, - {0x9b407691d7fc44f8, 0x79e0de63425dcf1e}, - {0xc21094364dfb5636, 0x985915fc12f542e5}, - {0xf294b943e17a2bc4, 0x3e6f5b7b17b2939e}, - {0x979cf3ca6cec5b5a, 0xa705992ceecf9c43}, - {0xbd8430bd08277231, 0x50c6ff782a838354}, - {0xece53cec4a314ebd, 0xa4f8bf5635246429}, - {0x940f4613ae5ed136, 0x871b7795e136be9a}, - {0xb913179899f68584, 0x28e2557b59846e40}, - {0xe757dd7ec07426e5, 0x331aeada2fe589d0}, - {0x9096ea6f3848984f, 0x3ff0d2c85def7622}, - {0xb4bca50b065abe63, 0x0fed077a756b53aa}, - {0xe1ebce4dc7f16dfb, 0xd3e8495912c62895}, - {0x8d3360f09cf6e4bd, 0x64712dd7abbbd95d}, - {0xb080392cc4349dec, 0xbd8d794d96aacfb4}, - {0xdca04777f541c567, 0xecf0d7a0fc5583a1}, - {0x89e42caaf9491b60, 0xf41686c49db57245}, - {0xac5d37d5b79b6239, 0x311c2875c522ced6}, - {0xd77485cb25823ac7, 0x7d633293366b828c}, - {0x86a8d39ef77164bc, 0xae5dff9c02033198}, - {0xa8530886b54dbdeb, 0xd9f57f830283fdfd}, - {0xd267caa862a12d66, 0xd072df63c324fd7c}, - {0x8380dea93da4bc60, 0x4247cb9e59f71e6e}, - {0xa46116538d0deb78, 0x52d9be85f074e609}, - {0xcd795be870516656, 0x67902e276c921f8c}, - {0x806bd9714632dff6, 0x00ba1cd8a3db53b7}, - {0xa086cfcd97bf97f3, 0x80e8a40eccd228a5}, - {0xc8a883c0fdaf7df0, 0x6122cd128006b2ce}, - {0xfad2a4b13d1b5d6c, 0x796b805720085f82}, - {0x9cc3a6eec6311a63, 0xcbe3303674053bb1}, - {0xc3f490aa77bd60fc, 0xbedbfc4411068a9d}, - {0xf4f1b4d515acb93b, 0xee92fb5515482d45}, - {0x991711052d8bf3c5, 0x751bdd152d4d1c4b}, - {0xbf5cd54678eef0b6, 0xd262d45a78a0635e}, - {0xef340a98172aace4, 0x86fb897116c87c35}, - {0x9580869f0e7aac0e, 0xd45d35e6ae3d4da1}, - {0xbae0a846d2195712, 0x8974836059cca10a}, - {0xe998d258869facd7, 0x2bd1a438703fc94c}, - {0x91ff83775423cc06, 0x7b6306a34627ddd0}, - {0xb67f6455292cbf08, 0x1a3bc84c17b1d543}, - {0xe41f3d6a7377eeca, 0x20caba5f1d9e4a94}, - {0x8e938662882af53e, 0x547eb47b7282ee9d}, - {0xb23867fb2a35b28d, 0xe99e619a4f23aa44}, - {0xdec681f9f4c31f31, 0x6405fa00e2ec94d5}, - {0x8b3c113c38f9f37e, 0xde83bc408dd3dd05}, - {0xae0b158b4738705e, 0x9624ab50b148d446}, - {0xd98ddaee19068c76, 0x3badd624dd9b0958}, - {0x87f8a8d4cfa417c9, 0xe54ca5d70a80e5d7}, - {0xa9f6d30a038d1dbc, 0x5e9fcf4ccd211f4d}, - {0xd47487cc8470652b, 0x7647c32000696720}, - {0x84c8d4dfd2c63f3b, 0x29ecd9f40041e074}, - {0xa5fb0a17c777cf09, 0xf468107100525891}, - {0xcf79cc9db955c2cc, 0x7182148d4066eeb5}, - {0x81ac1fe293d599bf, 0xc6f14cd848405531}, - {0xa21727db38cb002f, 0xb8ada00e5a506a7d}, - {0xca9cf1d206fdc03b, 0xa6d90811f0e4851d}, - {0xfd442e4688bd304a, 0x908f4a166d1da664}, - {0x9e4a9cec15763e2e, 0x9a598e4e043287ff}, - {0xc5dd44271ad3cdba, 0x40eff1e1853f29fe}, - {0xf7549530e188c128, 0xd12bee59e68ef47d}, - {0x9a94dd3e8cf578b9, 0x82bb74f8301958cf}, - {0xc13a148e3032d6e7, 0xe36a52363c1faf02}, - {0xf18899b1bc3f8ca1, 0xdc44e6c3cb279ac2}, - {0x96f5600f15a7b7e5, 0x29ab103a5ef8c0ba}, - {0xbcb2b812db11a5de, 0x7415d448f6b6f0e8}, - {0xebdf661791d60f56, 0x111b495b3464ad22}, - {0x936b9fcebb25c995, 0xcab10dd900beec35}, - {0xb84687c269ef3bfb, 0x3d5d514f40eea743}, - {0xe65829b3046b0afa, 0x0cb4a5a3112a5113}, - {0x8ff71a0fe2c2e6dc, 0x47f0e785eaba72ac}, - {0xb3f4e093db73a093, 0x59ed216765690f57}, - {0xe0f218b8d25088b8, 0x306869c13ec3532d}, - {0x8c974f7383725573, 0x1e414218c73a13fc}, - {0xafbd2350644eeacf, 0xe5d1929ef90898fb}, - {0xdbac6c247d62a583, 0xdf45f746b74abf3a}, - {0x894bc396ce5da772, 0x6b8bba8c328eb784}, - {0xab9eb47c81f5114f, 0x066ea92f3f326565}, - 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0xacca6da1e0a8ef2a}, + {0xbff610b0cc6edd3f, 0x17fd090a58d32af4}, + {0xeff394dcff8a948e, 0xddfc4b4cef07f5b1}, + {0x95f83d0a1fb69cd9, 0x4abdaf101564f98f}, + {0xbb764c4ca7a4440f, 0x9d6d1ad41abe37f2}, + {0xea53df5fd18d5513, 0x84c86189216dc5ee}, + {0x92746b9be2f8552c, 0x32fd3cf5b4e49bb5}, + {0xb7118682dbb66a77, 0x3fbc8c33221dc2a2}, + {0xe4d5e82392a40515, 0x0fabaf3feaa5334b}, + {0x8f05b1163ba6832d, 0x29cb4d87f2a7400f}, + {0xb2c71d5bca9023f8, 0x743e20e9ef511013}, + {0xdf78e4b2bd342cf6, 0x914da9246b255417}, + {0x8bab8eefb6409c1a, 0x1ad089b6c2f7548f}, + {0xae9672aba3d0c320, 0xa184ac2473b529b2}, + {0xda3c0f568cc4f3e8, 0xc9e5d72d90a2741f}, + {0x8865899617fb1871, 0x7e2fa67c7a658893}, + {0xaa7eebfb9df9de8d, 0xddbb901b98feeab8}, + {0xd51ea6fa85785631, 0x552a74227f3ea566}, + {0x8533285c936b35de, 0xd53a88958f872760}, + {0xa67ff273b8460356, 0x8a892abaf368f138}, + {0xd01fef10a657842c, 0x2d2b7569b0432d86}, + {0x8213f56a67f6b29b, 0x9c3b29620e29fc74}, + {0xa298f2c501f45f42, 0x8349f3ba91b47b90}, + {0xcb3f2f7642717713, 0x241c70a936219a74}, + {0xfe0efb53d30dd4d7, 0xed238cd383aa0111}, + {0x9ec95d1463e8a506, 0xf4363804324a40ab}, + {0xc67bb4597ce2ce48, 0xb143c6053edcd0d6}, + {0xf81aa16fdc1b81da, 0xdd94b7868e94050b}, + {0x9b10a4e5e9913128, 0xca7cf2b4191c8327}, + {0xc1d4ce1f63f57d72, 0xfd1c2f611f63a3f1}, + {0xf24a01a73cf2dccf, 0xbc633b39673c8ced}, + {0x976e41088617ca01, 0xd5be0503e085d814}, + {0xbd49d14aa79dbc82, 0x4b2d8644d8a74e19}, + {0xec9c459d51852ba2, 0xddf8e7d60ed1219f}, + {0x93e1ab8252f33b45, 0xcabb90e5c942b504}, + {0xb8da1662e7b00a17, 0x3d6a751f3b936244}, + {0xe7109bfba19c0c9d, 0x0cc512670a783ad5}, + {0x906a617d450187e2, 0x27fb2b80668b24c6}, + {0xb484f9dc9641e9da, 0xb1f9f660802dedf7}, + {0xe1a63853bbd26451, 0x5e7873f8a0396974}, + {0x8d07e33455637eb2, 0xdb0b487b6423e1e9}, + {0xb049dc016abc5e5f, 0x91ce1a9a3d2cda63}, + {0xdc5c5301c56b75f7, 0x7641a140cc7810fc}, + {0x89b9b3e11b6329ba, 0xa9e904c87fcb0a9e}, + {0xac2820d9623bf429, 0x546345fa9fbdcd45}, + {0xd732290fbacaf133, 0xa97c177947ad4096}, + {0x867f59a9d4bed6c0, 0x49ed8eabcccc485e}, + {0xa81f301449ee8c70, 0x5c68f256bfff5a75}, + {0xd226fc195c6a2f8c, 0x73832eec6fff3112}, + {0x83585d8fd9c25db7, 0xc831fd53c5ff7eac}, + {0xa42e74f3d032f525, 0xba3e7ca8b77f5e56}, + {0xcd3a1230c43fb26f, 0x28ce1bd2e55f35ec}, + {0x80444b5e7aa7cf85, 0x7980d163cf5b81b4}, + {0xa0555e361951c366, 0xd7e105bcc3326220}, + {0xc86ab5c39fa63440, 0x8dd9472bf3fefaa8}, + {0xfa856334878fc150, 0xb14f98f6f0feb952}, + {0x9c935e00d4b9d8d2, 0x6ed1bf9a569f33d4}, + {0xc3b8358109e84f07, 0x0a862f80ec4700c9}, + {0xf4a642e14c6262c8, 0xcd27bb612758c0fb}, + {0x98e7e9cccfbd7dbd, 0x8038d51cb897789d}, + {0xbf21e44003acdd2c, 0xe0470a63e6bd56c4}, + {0xeeea5d5004981478, 0x1858ccfce06cac75}, + {0x95527a5202df0ccb, 0x0f37801e0c43ebc9}, + {0xbaa718e68396cffd, 0xd30560258f54e6bb}, + {0xe950df20247c83fd, 0x47c6b82ef32a206a}, + {0x91d28b7416cdd27e, 0x4cdc331d57fa5442}, + {0xb6472e511c81471d, 0xe0133fe4adf8e953}, + {0xe3d8f9e563a198e5, 0x58180fddd97723a7}, + {0x8e679c2f5e44ff8f, 0x570f09eaa7ea7649}, + {0xb201833b35d63f73, 0x2cd2cc6551e513db}, + {0xde81e40a034bcf4f, 0xf8077f7ea65e58d2}, + {0x8b112e86420f6191, 0xfb04afaf27faf783}, + {0xadd57a27d29339f6, 0x79c5db9af1f9b564}, + {0xd94ad8b1c7380874, 0x18375281ae7822bd}, + {0x87cec76f1c830548, 0x8f2293910d0b15b6}, + {0xa9c2794ae3a3c69a, 0xb2eb3875504ddb23}, + {0xd433179d9c8cb841, 0x5fa60692a46151ec}, + {0x849feec281d7f328, 0xdbc7c41ba6bcd334}, + {0xa5c7ea73224deff3, 0x12b9b522906c0801}, + {0xcf39e50feae16bef, 0xd768226b34870a01}, + {0x81842f29f2cce375, 0xe6a1158300d46641}, + {0xa1e53af46f801c53, 0x60495ae3c1097fd1}, + {0xca5e89b18b602368, 0x385bb19cb14bdfc5}, + {0xfcf62c1dee382c42, 0x46729e03dd9ed7b6}, + {0x9e19db92b4e31ba9, 0x6c07a2c26a8346d2}, + {0xc5a05277621be293, 0xc7098b7305241886}, + {0xf70867153aa2db38, 0xb8cbee4fc66d1ea8}, + {0x9a65406d44a5c903, 0x737f74f1dc043329}, + {0xc0fe908895cf3b44, 0x505f522e53053ff3}, + {0xf13e34aabb430a15, 0x647726b9e7c68ff0}, + {0x96c6e0eab509e64d, 0x5eca783430dc19f6}, + {0xbc789925624c5fe0, 0xb67d16413d132073}, + {0xeb96bf6ebadf77d8, 0xe41c5bd18c57e890}, + {0x933e37a534cbaae7, 0x8e91b962f7b6f15a}, + {0xb80dc58e81fe95a1, 0x723627bbb5a4adb1}, + {0xe61136f2227e3b09, 0xcec3b1aaa30dd91d}, + {0x8fcac257558ee4e6, 0x213a4f0aa5e8a7b2}, + {0xb3bd72ed2af29e1f, 0xa988e2cd4f62d19e}, + {0xe0accfa875af45a7, 0x93eb1b80a33b8606}, + {0x8c6c01c9498d8b88, 0xbc72f130660533c4}, + {0xaf87023b9bf0ee6a, 0xeb8fad7c7f8680b5}, + {0xdb68c2ca82ed2a05, 0xa67398db9f6820e2}, #else - {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b}, - {0xce5d73ff402d98e3, 0xfb0a3d212dc81290}, - {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f}, - {0x86a8d39ef77164bc, 0xae5dff9c02033198}, - {0xd98ddaee19068c76, 0x3badd624dd9b0958}, - {0xafbd2350644eeacf, 0xe5d1929ef90898fb}, - {0x8df5efabc5979c8f, 0xca8d3ffa1ef463c2}, - {0xe55990879ddcaabd, 0xcc420a6a101d0516}, - {0xb94470938fa89bce, 0xf808e40e8d5b3e6a}, - {0x95a8637627989aad, 0xdde7001379a44aa9}, - {0xf1c90080baf72cb1, 0x5324c68b12dd6339}, - {0xc350000000000000, 0x0000000000000000}, - {0x9dc5ada82b70b59d, 0xf020000000000000}, - {0xfee50b7025c36a08, 0x02f236d04753d5b5}, - {0xcde6fd5e09abcf26, 0xed4c0226b55e6f87}, - {0xa6539930bf6bff45, 0x84db8346b786151d}, - {0x865b86925b9bc5c2, 0x0b8a2392ba45a9b3}, - {0xd910f7ff28069da4, 0x1b2ba1518094da05}, - {0xaf58416654a6babb, 0x387ac8d1970027b3}, - {0x8da471a9de737e24, 0x5ceaecfed289e5d3}, - {0xe4d5e82392a40515, 0x0fabaf3feaa5334b}, - {0xb8da1662e7b00a17, 0x3d6a751f3b936244}, - { 0x95527a5202df0ccb, - 0x0f37801e0c43ebc9 } + {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b}, + {0xce5d73ff402d98e3, 0xfb0a3d212dc81290}, + {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f}, + {0x86a8d39ef77164bc, 0xae5dff9c02033198}, + {0xd98ddaee19068c76, 0x3badd624dd9b0958}, + {0xafbd2350644eeacf, 0xe5d1929ef90898fb}, + {0x8df5efabc5979c8f, 0xca8d3ffa1ef463c2}, + {0xe55990879ddcaabd, 0xcc420a6a101d0516}, + {0xb94470938fa89bce, 0xf808e40e8d5b3e6a}, + {0x95a8637627989aad, 0xdde7001379a44aa9}, + {0xf1c90080baf72cb1, 0x5324c68b12dd6339}, + {0xc350000000000000, 0x0000000000000000}, + {0x9dc5ada82b70b59d, 0xf020000000000000}, + {0xfee50b7025c36a08, 0x02f236d04753d5b5}, + {0xcde6fd5e09abcf26, 0xed4c0226b55e6f87}, + {0xa6539930bf6bff45, 0x84db8346b786151d}, + {0x865b86925b9bc5c2, 0x0b8a2392ba45a9b3}, + {0xd910f7ff28069da4, 0x1b2ba1518094da05}, + {0xaf58416654a6babb, 0x387ac8d1970027b3}, + {0x8da471a9de737e24, 0x5ceaecfed289e5d3}, + {0xe4d5e82392a40515, 0x0fabaf3feaa5334b}, + {0xb8da1662e7b00a17, 0x3d6a751f3b936244}, + {0x95527a5202df0ccb, 0x0f37801e0c43ebc9}, + {0xf13e34aabb430a15, 0x647726b9e7c68ff0} #endif - }; + }; #if FMT_USE_FULL_CACHE_DRAGONBOX - return pow10_significands[k - float_info::min_k]; + return pow10_significands[k - float_info::min_k]; #else - static constexpr const uint64_t powers_of_5_64[] = { - 0x0000000000000001, 0x0000000000000005, 0x0000000000000019, 0x000000000000007d, - 0x0000000000000271, 0x0000000000000c35, 0x0000000000003d09, 0x000000000001312d, - 0x000000000005f5e1, 0x00000000001dcd65, 0x00000000009502f9, 0x0000000002e90edd, - 0x000000000e8d4a51, 0x0000000048c27395, 0x000000016bcc41e9, 0x000000071afd498d, - 0x0000002386f26fc1, 0x000000b1a2bc2ec5, 0x000003782dace9d9, 0x00001158e460913d, - 0x000056bc75e2d631, 0x0001b1ae4d6e2ef5, 0x000878678326eac9, 0x002a5a058fc295ed, - 0x00d3c21bcecceda1, 0x0422ca8b0a00a425, 0x14adf4b7320334b9}; - - static const int compression_ratio = 27; - - // Compute base index. - int cache_index = (k - float_info::min_k) / compression_ratio; - int kb = cache_index * compression_ratio + float_info::min_k; - int offset = k - kb; - - // Get base cache. - uint128_fallback base_cache = pow10_significands[cache_index]; - if (offset == 0) return base_cache; - - // Compute the required amount of bit-shift. - int alpha = floor_log2_pow10(kb + offset) - floor_log2_pow10(kb) - offset; - FMT_ASSERT(alpha > 0 && alpha < 64, "shifting error detected"); - - // Try to recover the real cache. - uint64_t pow5 = powers_of_5_64[offset]; - uint128_fallback recovered_cache = umul128(base_cache.high(), pow5); - uint128_fallback middle_low = umul128(base_cache.low(), pow5); - - recovered_cache += middle_low.high(); - - uint64_t high_to_middle = recovered_cache.high() << (64 - alpha); - uint64_t middle_to_low = recovered_cache.low() << (64 - alpha); - - recovered_cache = uint128_fallback{(recovered_cache.low() >> alpha) | high_to_middle, - ((middle_low.low() >> alpha) | middle_to_low)}; - FMT_ASSERT(recovered_cache.low() + 1 != 0, ""); - return {recovered_cache.high(), recovered_cache.low() + 1}; + static constexpr const uint64_t powers_of_5_64[] = { + 0x0000000000000001, 0x0000000000000005, 0x0000000000000019, + 0x000000000000007d, 0x0000000000000271, 0x0000000000000c35, + 0x0000000000003d09, 0x000000000001312d, 0x000000000005f5e1, + 0x00000000001dcd65, 0x00000000009502f9, 0x0000000002e90edd, + 0x000000000e8d4a51, 0x0000000048c27395, 0x000000016bcc41e9, + 0x000000071afd498d, 0x0000002386f26fc1, 0x000000b1a2bc2ec5, + 0x000003782dace9d9, 0x00001158e460913d, 0x000056bc75e2d631, + 0x0001b1ae4d6e2ef5, 0x000878678326eac9, 0x002a5a058fc295ed, + 0x00d3c21bcecceda1, 0x0422ca8b0a00a425, 0x14adf4b7320334b9}; + + static const int compression_ratio = 27; + + // Compute base index. + int cache_index = (k - float_info::min_k) / compression_ratio; + int kb = cache_index * compression_ratio + float_info::min_k; + int offset = k - kb; + + // Get base cache. + uint128_fallback base_cache = pow10_significands[cache_index]; + if (offset == 0) return base_cache; + + // Compute the required amount of bit-shift. + int alpha = floor_log2_pow10(kb + offset) - floor_log2_pow10(kb) - offset; + FMT_ASSERT(alpha > 0 && alpha < 64, "shifting error detected"); + + // Try to recover the real cache. + uint64_t pow5 = powers_of_5_64[offset]; + uint128_fallback recovered_cache = umul128(base_cache.high(), pow5); + uint128_fallback middle_low = umul128(base_cache.low(), pow5); + + recovered_cache += middle_low.high(); + + uint64_t high_to_middle = recovered_cache.high() << (64 - alpha); + uint64_t middle_to_low = recovered_cache.low() << (64 - alpha); + + recovered_cache = + uint128_fallback{(recovered_cache.low() >> alpha) | high_to_middle, + ((middle_low.low() >> alpha) | middle_to_low)}; + FMT_ASSERT(recovered_cache.low() + 1 != 0, ""); + return {recovered_cache.high(), recovered_cache.low() + 1}; #endif - } + } + + struct compute_mul_result { + carrier_uint result; + bool is_integer; + }; + struct compute_mul_parity_result { + bool parity; + bool is_integer; + }; + + static auto compute_mul(carrier_uint u, + const cache_entry_type& cache) noexcept + -> compute_mul_result { + auto r = umul192_upper128(u, cache); + return {r.high(), r.low() == 0}; + } + + static auto compute_delta(const cache_entry_type& cache, int beta) noexcept + -> uint32_t { + return static_cast(cache.high() >> (64 - 1 - beta)); + } + + static auto compute_mul_parity(carrier_uint two_f, + const cache_entry_type& cache, + int beta) noexcept + -> compute_mul_parity_result { + FMT_ASSERT(beta >= 1, ""); + FMT_ASSERT(beta < 64, ""); + + auto r = umul192_lower128(two_f, cache); + return {((r.high() >> (64 - beta)) & 1) != 0, + ((r.high() << beta) | (r.low() >> (64 - beta))) == 0}; + } + + static auto compute_left_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return (cache.high() - + (cache.high() >> (num_significand_bits() + 2))) >> + (64 - num_significand_bits() - 1 - beta); + } + + static auto compute_right_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return (cache.high() + + (cache.high() >> (num_significand_bits() + 1))) >> + (64 - num_significand_bits() - 1 - beta); + } + + static auto compute_round_up_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return ((cache.high() >> (64 - num_significand_bits() - 2 - beta)) + + 1) / + 2; + } +}; - struct compute_mul_result { - carrier_uint result; - bool is_integer; - }; - struct compute_mul_parity_result { - bool parity; - bool is_integer; - }; +FMT_FUNC auto get_cached_power(int k) noexcept -> uint128_fallback { + return cache_accessor::get_cached_power(k); +} - static compute_mul_result compute_mul(carrier_uint u, const cache_entry_type& cache) noexcept { - auto r = umul192_upper128(u, cache); - return {r.high(), r.low() == 0}; - } +// Various integer checks +template +auto is_left_endpoint_integer_shorter_interval(int exponent) noexcept -> bool { + const int case_shorter_interval_left_endpoint_lower_threshold = 2; + const int case_shorter_interval_left_endpoint_upper_threshold = 3; + return exponent >= case_shorter_interval_left_endpoint_lower_threshold && + exponent <= case_shorter_interval_left_endpoint_upper_threshold; +} - static uint32_t compute_delta(cache_entry_type const& cache, int beta) noexcept { - return static_cast(cache.high() >> (64 - 1 - beta)); - } +// Remove trailing zeros from n and return the number of zeros removed (float) +FMT_INLINE int remove_trailing_zeros(uint32_t& n, int s = 0) noexcept { + FMT_ASSERT(n != 0, ""); + // Modular inverse of 5 (mod 2^32): (mod_inv_5 * 5) mod 2^32 = 1. + constexpr uint32_t mod_inv_5 = 0xcccccccd; + constexpr uint32_t mod_inv_25 = 0xc28f5c29; // = mod_inv_5 * mod_inv_5 + + while (true) { + auto q = rotr(n * mod_inv_25, 2); + if (q > max_value() / 100) break; + n = q; + s += 2; + } + auto q = rotr(n * mod_inv_5, 1); + if (q <= max_value() / 10) { + n = q; + s |= 1; + } + return s; +} - static compute_mul_parity_result compute_mul_parity(carrier_uint two_f, - const cache_entry_type& cache, - int beta) noexcept { - FMT_ASSERT(beta >= 1, ""); - FMT_ASSERT(beta < 64, ""); +// Removes trailing zeros and returns the number of zeros removed (double) +FMT_INLINE int remove_trailing_zeros(uint64_t& n) noexcept { + FMT_ASSERT(n != 0, ""); + + // This magic number is ceil(2^90 / 10^8). + constexpr uint64_t magic_number = 12379400392853802749ull; + auto nm = umul128(n, magic_number); + + // Is n is divisible by 10^8? + if ((nm.high() & ((1ull << (90 - 64)) - 1)) == 0 && nm.low() < magic_number) { + // If yes, work with the quotient... + auto n32 = static_cast(nm.high() >> (90 - 64)); + // ... and use the 32 bit variant of the function + int s = remove_trailing_zeros(n32, 8); + n = n32; + return s; + } + + // If n is not divisible by 10^8, work with n itself. + constexpr uint64_t mod_inv_5 = 0xcccccccccccccccd; + constexpr uint64_t mod_inv_25 = 0x8f5c28f5c28f5c29; // mod_inv_5 * mod_inv_5 + + int s = 0; + while (true) { + auto q = rotr(n * mod_inv_25, 2); + if (q > max_value() / 100) break; + n = q; + s += 2; + } + auto q = rotr(n * mod_inv_5, 1); + if (q <= max_value() / 10) { + n = q; + s |= 1; + } + + return s; +} - auto r = umul192_lower128(two_f, cache); - return {((r.high() >> (64 - beta)) & 1) != 0, - ((r.high() << beta) | (r.low() >> (64 - beta))) == 0}; - } +// The main algorithm for shorter interval case +template +FMT_INLINE decimal_fp shorter_interval_case(int exponent) noexcept { + decimal_fp ret_value; + // Compute k and beta + const int minus_k = floor_log10_pow2_minus_log10_4_over_3(exponent); + const int beta = exponent + floor_log2_pow10(-minus_k); - static carrier_uint compute_left_endpoint_for_shorter_interval_case( - const cache_entry_type& cache, int beta) noexcept { - return (cache.high() - (cache.high() >> (num_significand_bits() + 2))) >> - (64 - num_significand_bits() - 1 - beta); - } + // Compute xi and zi + using cache_entry_type = typename cache_accessor::cache_entry_type; + const cache_entry_type cache = cache_accessor::get_cached_power(-minus_k); - static carrier_uint compute_right_endpoint_for_shorter_interval_case( - const cache_entry_type& cache, int beta) noexcept { - return (cache.high() + (cache.high() >> (num_significand_bits() + 1))) >> - (64 - num_significand_bits() - 1 - beta); - } + auto xi = cache_accessor::compute_left_endpoint_for_shorter_interval_case( + cache, beta); + auto zi = cache_accessor::compute_right_endpoint_for_shorter_interval_case( + cache, beta); - static carrier_uint compute_round_up_for_shorter_interval_case(const cache_entry_type& cache, - int beta) noexcept { - return ((cache.high() >> (64 - num_significand_bits() - 2 - beta)) + 1) / 2; - } -}; + // If the left endpoint is not an integer, increase it + if (!is_left_endpoint_integer_shorter_interval(exponent)) ++xi; -// Various integer checks -template -bool is_left_endpoint_integer_shorter_interval(int exponent) noexcept { - const int case_shorter_interval_left_endpoint_lower_threshold = 2; - const int case_shorter_interval_left_endpoint_upper_threshold = 3; - return exponent >= case_shorter_interval_left_endpoint_lower_threshold && - exponent <= case_shorter_interval_left_endpoint_upper_threshold; + // Try bigger divisor + ret_value.significand = zi / 10; + + // If succeed, remove trailing zeros if necessary and return + if (ret_value.significand * 10 >= xi) { + ret_value.exponent = minus_k + 1; + ret_value.exponent += remove_trailing_zeros(ret_value.significand); + return ret_value; + } + + // Otherwise, compute the round-up of y + ret_value.significand = + cache_accessor::compute_round_up_for_shorter_interval_case(cache, + beta); + ret_value.exponent = minus_k; + + // When tie occurs, choose one of them according to the rule + if (exponent >= float_info::shorter_interval_tie_lower_threshold && + exponent <= float_info::shorter_interval_tie_upper_threshold) { + ret_value.significand = ret_value.significand % 2 == 0 + ? ret_value.significand + : ret_value.significand - 1; + } else if (ret_value.significand < xi) { + ++ret_value.significand; + } + return ret_value; } -// Remove trailing zeros from n and return the number of zeros removed (float) -FMT_INLINE int remove_trailing_zeros(uint32_t& n) noexcept { - FMT_ASSERT(n != 0, ""); - const uint32_t mod_inv_5 = 0xcccccccd; - const uint32_t mod_inv_25 = mod_inv_5 * mod_inv_5; - - int s = 0; - while (true) { - auto q = rotr(n * mod_inv_25, 2); - if (q > max_value() / 100) break; - n = q; - s += 2; - } - auto q = rotr(n * mod_inv_5, 1); - if (q <= max_value() / 10) { - n = q; - s |= 1; +template auto to_decimal(T x) noexcept -> decimal_fp { + // Step 1: integer promotion & Schubfach multiplier calculation. + + using carrier_uint = typename float_info::carrier_uint; + using cache_entry_type = typename cache_accessor::cache_entry_type; + auto br = bit_cast(x); + + // Extract significand bits and exponent bits. + const carrier_uint significand_mask = + (static_cast(1) << num_significand_bits()) - 1; + carrier_uint significand = (br & significand_mask); + int exponent = + static_cast((br & exponent_mask()) >> num_significand_bits()); + + if (exponent != 0) { // Check if normal. + exponent -= exponent_bias() + num_significand_bits(); + + // Shorter interval case; proceed like Schubfach. + // In fact, when exponent == 1 and significand == 0, the interval is + // regular. However, it can be shown that the end-results are anyway same. + if (significand == 0) return shorter_interval_case(exponent); + + significand |= (static_cast(1) << num_significand_bits()); + } else { + // Subnormal case; the interval is always regular. + if (significand == 0) return {0, 0}; + exponent = + std::numeric_limits::min_exponent - num_significand_bits() - 1; + } + + const bool include_left_endpoint = (significand % 2 == 0); + const bool include_right_endpoint = include_left_endpoint; + + // Compute k and beta. + const int minus_k = floor_log10_pow2(exponent) - float_info::kappa; + const cache_entry_type cache = cache_accessor::get_cached_power(-minus_k); + const int beta = exponent + floor_log2_pow10(-minus_k); + + // Compute zi and deltai. + // 10^kappa <= deltai < 10^(kappa + 1) + const uint32_t deltai = cache_accessor::compute_delta(cache, beta); + const carrier_uint two_fc = significand << 1; + + // For the case of binary32, the result of integer check is not correct for + // 29711844 * 2^-82 + // = 6.1442653300000000008655037797566933477355632930994033813476... * 10^-18 + // and 29711844 * 2^-81 + // = 1.2288530660000000001731007559513386695471126586198806762695... * 10^-17, + // and they are the unique counterexamples. However, since 29711844 is even, + // this does not cause any problem for the endpoints calculations; it can only + // cause a problem when we need to perform integer check for the center. + // Fortunately, with these inputs, that branch is never executed, so we are + // fine. + const typename cache_accessor::compute_mul_result z_mul = + cache_accessor::compute_mul((two_fc | 1) << beta, cache); + + // Step 2: Try larger divisor; remove trailing zeros if necessary. + + // Using an upper bound on zi, we might be able to optimize the division + // better than the compiler; we are computing zi / big_divisor here. + decimal_fp ret_value; + ret_value.significand = divide_by_10_to_kappa_plus_1(z_mul.result); + uint32_t r = static_cast(z_mul.result - float_info::big_divisor * + ret_value.significand); + + if (r < deltai) { + // Exclude the right endpoint if necessary. + if (r == 0 && (z_mul.is_integer & !include_right_endpoint)) { + --ret_value.significand; + r = float_info::big_divisor; + goto small_divisor_case_label; } + } else if (r > deltai) { + goto small_divisor_case_label; + } else { + // r == deltai; compare fractional parts. + const typename cache_accessor::compute_mul_parity_result x_mul = + cache_accessor::compute_mul_parity(two_fc - 1, cache, beta); - return s; -} + if (!(x_mul.parity | (x_mul.is_integer & include_left_endpoint))) + goto small_divisor_case_label; + } + ret_value.exponent = minus_k + float_info::kappa + 1; -// Removes trailing zeros and returns the number of zeros removed (double) -FMT_INLINE int remove_trailing_zeros(uint64_t& n) noexcept { - FMT_ASSERT(n != 0, ""); - - // This magic number is ceil(2^90 / 10^8). - constexpr uint64_t magic_number = 12379400392853802749ull; - auto nm = umul128(n, magic_number); - - // Is n is divisible by 10^8? - if ((nm.high() & ((1ull << (90 - 64)) - 1)) == 0 && nm.low() < magic_number) { - // If yes, work with the quotient. - auto n32 = static_cast(nm.high() >> (90 - 64)); - - const uint32_t mod_inv_5 = 0xcccccccd; - const uint32_t mod_inv_25 = mod_inv_5 * mod_inv_5; - - int s = 8; - while (true) { - auto q = rotr(n32 * mod_inv_25, 2); - if (q > max_value() / 100) break; - n32 = q; - s += 2; - } - auto q = rotr(n32 * mod_inv_5, 1); - if (q <= max_value() / 10) { - n32 = q; - s |= 1; - } - - n = n32; - return s; - } + // We may need to remove trailing zeros. + ret_value.exponent += remove_trailing_zeros(ret_value.significand); + return ret_value; - // If n is not divisible by 10^8, work with n itself. - const uint64_t mod_inv_5 = 0xcccccccccccccccd; - const uint64_t mod_inv_25 = mod_inv_5 * mod_inv_5; + // Step 3: Find the significand with the smaller divisor. - int s = 0; - while (true) { - auto q = rotr(n * mod_inv_25, 2); - if (q > max_value() / 100) break; - n = q; - s += 2; +small_divisor_case_label: + ret_value.significand *= 10; + ret_value.exponent = minus_k + float_info::kappa; + + uint32_t dist = r - (deltai / 2) + (float_info::small_divisor / 2); + const bool approx_y_parity = + ((dist ^ (float_info::small_divisor / 2)) & 1) != 0; + + // Is dist divisible by 10^kappa? + const bool divisible_by_small_divisor = + check_divisibility_and_divide_by_pow10::kappa>(dist); + + // Add dist / 10^kappa to the significand. + ret_value.significand += dist; + + if (!divisible_by_small_divisor) return ret_value; + + // Check z^(f) >= epsilon^(f). + // We have either yi == zi - epsiloni or yi == (zi - epsiloni) - 1, + // where yi == zi - epsiloni if and only if z^(f) >= epsilon^(f). + // Since there are only 2 possibilities, we only need to care about the + // parity. Also, zi and r should have the same parity since the divisor + // is an even number. + const auto y_mul = cache_accessor::compute_mul_parity(two_fc, cache, beta); + + // If z^(f) >= epsilon^(f), we might have a tie when z^(f) == epsilon^(f), + // or equivalently, when y is an integer. + if (y_mul.parity != approx_y_parity) + --ret_value.significand; + else if (y_mul.is_integer & (ret_value.significand % 2 != 0)) + --ret_value.significand; + return ret_value; +} +} // namespace dragonbox +} // namespace detail + +template <> struct formatter { + FMT_CONSTEXPR auto parse(format_parse_context& ctx) + -> format_parse_context::iterator { + return ctx.begin(); + } + + auto format(const detail::bigint& n, format_context& ctx) const + -> format_context::iterator { + auto out = ctx.out(); + bool first = true; + for (auto i = n.bigits_.size(); i > 0; --i) { + auto value = n.bigits_[i - 1u]; + if (first) { + out = fmt::format_to(out, FMT_STRING("{:x}"), value); + first = false; + continue; + } + out = fmt::format_to(out, FMT_STRING("{:08x}"), value); } - auto q = rotr(n * mod_inv_5, 1); - if (q <= max_value() / 10) { - n = q; - s |= 1; + if (n.exp_ > 0) + out = fmt::format_to(out, FMT_STRING("p{}"), + n.exp_ * detail::bigint::bigit_bits); + return out; + } +}; + +FMT_FUNC detail::utf8_to_utf16::utf8_to_utf16(string_view s) { + for_each_codepoint(s, [this](uint32_t cp, string_view) { + if (cp == invalid_code_point) FMT_THROW(std::runtime_error("invalid utf8")); + if (cp <= 0xFFFF) { + buffer_.push_back(static_cast(cp)); + } else { + cp -= 0x10000; + buffer_.push_back(static_cast(0xD800 + (cp >> 10))); + buffer_.push_back(static_cast(0xDC00 + (cp & 0x3FF))); } + return true; + }); + buffer_.push_back(0); +} - return s; +FMT_FUNC void format_system_error(detail::buffer& out, int error_code, + const char* message) noexcept { + FMT_TRY { + auto ec = std::error_code(error_code, std::generic_category()); + detail::write(appender(out), std::system_error(ec, message).what()); + return; + } + FMT_CATCH(...) {} + format_error_code(out, error_code, message); } -// The main algorithm for shorter interval case -template -FMT_INLINE decimal_fp shorter_interval_case(int exponent) noexcept { - decimal_fp ret_value; - // Compute k and beta - const int minus_k = floor_log10_pow2_minus_log10_4_over_3(exponent); - const int beta = exponent + floor_log2_pow10(-minus_k); +FMT_FUNC void report_system_error(int error_code, + const char* message) noexcept { + do_report_error(format_system_error, error_code, message); +} - // Compute xi and zi - using cache_entry_type = typename cache_accessor::cache_entry_type; - const cache_entry_type cache = cache_accessor::get_cached_power(-minus_k); +FMT_FUNC auto vformat(string_view fmt, format_args args) -> std::string { + // Don't optimize the "{}" case to keep the binary size small and because it + // can be better optimized in fmt::format anyway. + auto buffer = memory_buffer(); + detail::vformat_to(buffer, fmt, args); + return to_string(buffer); +} - auto xi = cache_accessor::compute_left_endpoint_for_shorter_interval_case(cache, beta); - auto zi = cache_accessor::compute_right_endpoint_for_shorter_interval_case(cache, beta); +namespace detail { - // If the left endpoint is not an integer, increase it - if (!is_left_endpoint_integer_shorter_interval(exponent)) ++xi; +FMT_FUNC void vformat_to(buffer& buf, string_view fmt, format_args args, + locale_ref loc) { + auto out = appender(buf); + if (fmt.size() == 2 && equal2(fmt.data(), "{}")) + return args.get(0).visit(default_arg_formatter{out}); + parse_format_string( + fmt, format_handler{parse_context(fmt), {out, args, loc}}); +} - // Try bigger divisor - ret_value.significand = zi / 10; +template struct span { + T* data; + size_t size; +}; - // If succeed, remove trailing zeros if necessary and return - if (ret_value.significand * 10 >= xi) { - ret_value.exponent = minus_k + 1; - ret_value.exponent += remove_trailing_zeros(ret_value.significand); - return ret_value; - } +template auto flockfile(F* f) -> decltype(_lock_file(f)) { + _lock_file(f); +} +template auto funlockfile(F* f) -> decltype(_unlock_file(f)) { + _unlock_file(f); +} - // Otherwise, compute the round-up of y - ret_value.significand = - cache_accessor::compute_round_up_for_shorter_interval_case(cache, beta); - ret_value.exponent = minus_k; - - // When tie occurs, choose one of them according to the rule - if (exponent >= float_info::shorter_interval_tie_lower_threshold && - exponent <= float_info::shorter_interval_tie_upper_threshold) { - ret_value.significand = - ret_value.significand % 2 == 0 ? ret_value.significand : ret_value.significand - 1; - } else if (ret_value.significand < xi) { - ++ret_value.significand; - } - return ret_value; +#ifndef getc_unlocked +template auto getc_unlocked(F* f) -> decltype(_fgetc_nolock(f)) { + return _fgetc_nolock(f); } +#endif -template -decimal_fp to_decimal(T x) noexcept { - // Step 1: integer promotion & Schubfach multiplier calculation. +template +struct has_flockfile : std::false_type {}; - using carrier_uint = typename float_info::carrier_uint; - using cache_entry_type = typename cache_accessor::cache_entry_type; - auto br = bit_cast(x); +template +struct has_flockfile()))>> + : std::true_type {}; + +// A FILE wrapper. F is FILE defined as a template parameter to make system API +// detection work. +template class file_base { + public: + F* file_; + + public: + file_base(F* file) : file_(file) {} + operator F*() const { return file_; } + + // Reads a code unit from the stream. + auto get() -> int { + int result = getc_unlocked(file_); + if (result == EOF && ferror(file_) != 0) + FMT_THROW(system_error(errno, FMT_STRING("getc failed"))); + return result; + } - // Extract significand bits and exponent bits. - const carrier_uint significand_mask = - (static_cast(1) << num_significand_bits()) - 1; - carrier_uint significand = (br & significand_mask); - int exponent = static_cast((br & exponent_mask()) >> num_significand_bits()); + // Puts the code unit back into the stream buffer. + void unget(char c) { + if (ungetc(c, file_) == EOF) + FMT_THROW(system_error(errno, FMT_STRING("ungetc failed"))); + } - if (exponent != 0) { // Check if normal. - exponent -= exponent_bias() + num_significand_bits(); + void flush() { fflush(this->file_); } +}; - // Shorter interval case; proceed like Schubfach. - // In fact, when exponent == 1 and significand == 0, the interval is - // regular. However, it can be shown that the end-results are anyway same. - if (significand == 0) return shorter_interval_case(exponent); +// A FILE wrapper for glibc. +template class glibc_file : public file_base { + private: + enum { + line_buffered = 0x200, // _IO_LINE_BUF + unbuffered = 2 // _IO_UNBUFFERED + }; + + public: + using file_base::file_base; + + auto is_buffered() const -> bool { + return (this->file_->_flags & unbuffered) == 0; + } + + void init_buffer() { + if (this->file_->_IO_write_ptr < this->file_->_IO_write_end) return; + // Force buffer initialization by placing and removing a char in a buffer. + putc_unlocked(0, this->file_); + --this->file_->_IO_write_ptr; + } + + // Returns the file's read buffer. + auto get_read_buffer() const -> span { + auto ptr = this->file_->_IO_read_ptr; + return {ptr, to_unsigned(this->file_->_IO_read_end - ptr)}; + } + + // Returns the file's write buffer. + auto get_write_buffer() const -> span { + auto ptr = this->file_->_IO_write_ptr; + return {ptr, to_unsigned(this->file_->_IO_buf_end - ptr)}; + } + + void advance_write_buffer(size_t size) { this->file_->_IO_write_ptr += size; } + + bool needs_flush() const { + if ((this->file_->_flags & line_buffered) == 0) return false; + char* end = this->file_->_IO_write_end; + return memchr(end, '\n', to_unsigned(this->file_->_IO_write_ptr - end)); + } + + void flush() { fflush_unlocked(this->file_); } +}; - significand |= (static_cast(1) << num_significand_bits()); - } else { - // Subnormal case; the interval is always regular. - if (significand == 0) return {0, 0}; - exponent = std::numeric_limits::min_exponent - num_significand_bits() - 1; - } +// A FILE wrapper for Apple's libc. +template class apple_file : public file_base { + private: + enum { + line_buffered = 1, // __SNBF + unbuffered = 2 // __SLBF + }; + + public: + using file_base::file_base; + + auto is_buffered() const -> bool { + return (this->file_->_flags & unbuffered) == 0; + } + + void init_buffer() { + if (this->file_->_p) return; + // Force buffer initialization by placing and removing a char in a buffer. + putc_unlocked(0, this->file_); + --this->file_->_p; + ++this->file_->_w; + } + + auto get_read_buffer() const -> span { + return {reinterpret_cast(this->file_->_p), + to_unsigned(this->file_->_r)}; + } + + auto get_write_buffer() const -> span { + return {reinterpret_cast(this->file_->_p), + to_unsigned(this->file_->_bf._base + this->file_->_bf._size - + this->file_->_p)}; + } + + void advance_write_buffer(size_t size) { + this->file_->_p += size; + this->file_->_w -= size; + } + + bool needs_flush() const { + if ((this->file_->_flags & line_buffered) == 0) return false; + return memchr(this->file_->_p + this->file_->_w, '\n', + to_unsigned(-this->file_->_w)); + } +}; - const bool include_left_endpoint = (significand % 2 == 0); - const bool include_right_endpoint = include_left_endpoint; - - // Compute k and beta. - const int minus_k = floor_log10_pow2(exponent) - float_info::kappa; - const cache_entry_type cache = cache_accessor::get_cached_power(-minus_k); - const int beta = exponent + floor_log2_pow10(-minus_k); - - // Compute zi and deltai. - // 10^kappa <= deltai < 10^(kappa + 1) - const uint32_t deltai = cache_accessor::compute_delta(cache, beta); - const carrier_uint two_fc = significand << 1; - - // For the case of binary32, the result of integer check is not correct for - // 29711844 * 2^-82 - // = 6.1442653300000000008655037797566933477355632930994033813476... * 10^-18 - // and 29711844 * 2^-81 - // = 1.2288530660000000001731007559513386695471126586198806762695... * 10^-17, - // and they are the unique counterexamples. However, since 29711844 is even, - // this does not cause any problem for the endpoints calculations; it can only - // cause a problem when we need to perform integer check for the center. - // Fortunately, with these inputs, that branch is never executed, so we are - // fine. - const typename cache_accessor::compute_mul_result z_mul = - cache_accessor::compute_mul((two_fc | 1) << beta, cache); - - // Step 2: Try larger divisor; remove trailing zeros if necessary. - - // Using an upper bound on zi, we might be able to optimize the division - // better than the compiler; we are computing zi / big_divisor here. - decimal_fp ret_value; - ret_value.significand = divide_by_10_to_kappa_plus_1(z_mul.result); - uint32_t r = - static_cast(z_mul.result - float_info::big_divisor * ret_value.significand); - - if (r < deltai) { - // Exclude the right endpoint if necessary. - if (r == 0 && (z_mul.is_integer & !include_right_endpoint)) { - --ret_value.significand; - r = float_info::big_divisor; - goto small_divisor_case_label; - } - } else if (r > deltai) { - goto small_divisor_case_label; - } else { - // r == deltai; compare fractional parts. - const typename cache_accessor::compute_mul_parity_result x_mul = - cache_accessor::compute_mul_parity(two_fc - 1, cache, beta); +// A fallback FILE wrapper. +template class fallback_file : public file_base { + private: + char next_; // The next unconsumed character in the buffer. + bool has_next_ = false; - if (!(x_mul.parity | (x_mul.is_integer & include_left_endpoint))) - goto small_divisor_case_label; - } - ret_value.exponent = minus_k + float_info::kappa + 1; + public: + using file_base::file_base; - // We may need to remove trailing zeros. - ret_value.exponent += remove_trailing_zeros(ret_value.significand); - return ret_value; + auto is_buffered() const -> bool { return false; } + auto needs_flush() const -> bool { return false; } + void init_buffer() {} - // Step 3: Find the significand with the smaller divisor. + auto get_read_buffer() const -> span { + return {&next_, has_next_ ? 1u : 0u}; + } -small_divisor_case_label: - ret_value.significand *= 10; - ret_value.exponent = minus_k + float_info::kappa; - - uint32_t dist = r - (deltai / 2) + (float_info::small_divisor / 2); - const bool approx_y_parity = ((dist ^ (float_info::small_divisor / 2)) & 1) != 0; - - // Is dist divisible by 10^kappa? - const bool divisible_by_small_divisor = - check_divisibility_and_divide_by_pow10::kappa>(dist); - - // Add dist / 10^kappa to the significand. - ret_value.significand += dist; - - if (!divisible_by_small_divisor) return ret_value; - - // Check z^(f) >= epsilon^(f). - // We have either yi == zi - epsiloni or yi == (zi - epsiloni) - 1, - // where yi == zi - epsiloni if and only if z^(f) >= epsilon^(f). - // Since there are only 2 possibilities, we only need to care about the - // parity. Also, zi and r should have the same parity since the divisor - // is an even number. - const auto y_mul = cache_accessor::compute_mul_parity(two_fc, cache, beta); - - // If z^(f) >= epsilon^(f), we might have a tie when z^(f) == epsilon^(f), - // or equivalently, when y is an integer. - if (y_mul.parity != approx_y_parity) - --ret_value.significand; - else if (y_mul.is_integer & (ret_value.significand % 2 != 0)) - --ret_value.significand; - return ret_value; -} -} // namespace dragonbox + auto get_write_buffer() const -> span { return {nullptr, 0}; } -#ifdef _MSC_VER -FMT_FUNC auto fmt_snprintf(char* buf, size_t size, const char* fmt, ...) -> int { - auto args = va_list(); - va_start(args, fmt); - int result = vsnprintf_s(buf, size, _TRUNCATE, fmt, args); - va_end(args); - return result; -} -#endif -} // namespace detail + void advance_write_buffer(size_t) {} -template <> -struct formatter { - FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> format_parse_context::iterator { - return ctx.begin(); - } + auto get() -> int { + has_next_ = false; + return file_base::get(); + } - template - auto format(const detail::bigint& n, FormatContext& ctx) const -> - typename FormatContext::iterator { - auto out = ctx.out(); - bool first = true; - for (auto i = n.bigits_.size(); i > 0; --i) { - auto value = n.bigits_[i - 1u]; - if (first) { - out = format_to(out, FMT_STRING("{:x}"), value); - first = false; - continue; - } - out = format_to(out, FMT_STRING("{:08x}"), value); - } - if (n.exp_ > 0) - out = format_to(out, FMT_STRING("p{}"), n.exp_ * detail::bigint::bigit_bits); - return out; - } + void unget(char c) { + file_base::unget(c); + next_ = c; + has_next_ = true; + } }; -FMT_FUNC detail::utf8_to_utf16::utf8_to_utf16(string_view s) { - for_each_codepoint(s, [this](uint32_t cp, string_view) { - if (cp == invalid_code_point) FMT_THROW(std::runtime_error("invalid utf8")); - if (cp <= 0xFFFF) { - buffer_.push_back(static_cast(cp)); - } else { - cp -= 0x10000; - buffer_.push_back(static_cast(0xD800 + (cp >> 10))); - buffer_.push_back(static_cast(0xDC00 + (cp & 0x3FF))); - } - return true; - }); - buffer_.push_back(0); -} +#ifndef FMT_USE_FALLBACK_FILE +# define FMT_USE_FALLBACK_FILE 0 +#endif -FMT_FUNC void format_system_error(detail::buffer& out, - int error_code, - const char* message) noexcept { - FMT_TRY { - auto ec = std::error_code(error_code, std::generic_category()); - write(std::back_inserter(out), std::system_error(ec, message).what()); - return; - } - FMT_CATCH(...) {} - format_error_code(out, error_code, message); +template +auto get_file(F* f, int) -> apple_file { + return f; } - -FMT_FUNC void report_system_error(int error_code, const char* message) noexcept { - report_error(format_system_error, error_code, message); +template +inline auto get_file(F* f, int) -> glibc_file { + return f; } -FMT_FUNC std::string vformat(string_view fmt, format_args args) { - // Don't optimize the "{}" case to keep the binary size small and because it - // can be better optimized in fmt::format anyway. - auto buffer = memory_buffer(); - detail::vformat_to(buffer, fmt, args); - return to_string(buffer); -} +inline auto get_file(FILE* f, ...) -> fallback_file { return f; } -namespace detail { -#ifdef _WIN32 +using file_ref = decltype(get_file(static_cast(nullptr), 0)); + +template +class file_print_buffer : public buffer { + public: + explicit file_print_buffer(F*) : buffer(nullptr, size_t()) {} +}; + +template +class file_print_buffer::value>> + : public buffer { + private: + file_ref file_; + + static void grow(buffer& base, size_t) { + auto& self = static_cast(base); + self.file_.advance_write_buffer(self.size()); + if (self.file_.get_write_buffer().size == 0) self.file_.flush(); + auto buf = self.file_.get_write_buffer(); + FMT_ASSERT(buf.size > 0, ""); + self.set(buf.data, buf.size); + self.clear(); + } + + public: + explicit file_print_buffer(F* f) : buffer(grow, size_t()), file_(f) { + flockfile(f); + file_.init_buffer(); + auto buf = file_.get_write_buffer(); + set(buf.data, buf.size); + } + ~file_print_buffer() { + file_.advance_write_buffer(size()); + bool flush = file_.needs_flush(); + F* f = file_; // Make funlockfile depend on the template parameter F + funlockfile(f); // for the system API detection to work. + if (flush) fflush(file_); + } +}; + +#if !defined(_WIN32) || defined(FMT_USE_WRITE_CONSOLE) +FMT_FUNC auto write_console(int, string_view) -> bool { return false; } +#else using dword = conditional_t; extern "C" __declspec(dllimport) int __stdcall WriteConsoleW( // - void*, - const void*, - dword, - dword*, - void*); - -FMT_FUNC bool write_console(std::FILE* f, string_view text) { - auto fd = _fileno(f); - if (_isatty(fd)) { - detail::utf8_to_utf16 u16(string_view(text.data(), text.size())); - auto written = detail::dword(); - if (detail::WriteConsoleW(reinterpret_cast(_get_osfhandle(fd)), u16.c_str(), - static_cast(u16.size()), &written, nullptr)) { - return true; - } - } - // We return false if the file descriptor was not TTY, or it was but - // SetConsoleW failed which can happen if the output has been redirected to - // NUL. In both cases when we return false, we should attempt to do regular - // write via fwrite or std::ostream::write. - return false; + void*, const void*, dword, dword*, void*); + +FMT_FUNC bool write_console(int fd, string_view text) { + auto u16 = utf8_to_utf16(text); + return WriteConsoleW(reinterpret_cast(_get_osfhandle(fd)), u16.c_str(), + static_cast(u16.size()), nullptr, nullptr) != 0; } #endif -FMT_FUNC void print(std::FILE* f, string_view text) { #ifdef _WIN32 - if (write_console(f, text)) return; +// Print assuming legacy (non-Unicode) encoding. +FMT_FUNC void vprint_mojibake(std::FILE* f, string_view fmt, format_args args, + bool newline) { + auto buffer = memory_buffer(); + detail::vformat_to(buffer, fmt, args); + if (newline) buffer.push_back('\n'); + fwrite_all(buffer.data(), buffer.size(), f); +} +#endif + +FMT_FUNC void print(std::FILE* f, string_view text) { +#if defined(_WIN32) && !defined(FMT_USE_WRITE_CONSOLE) + int fd = _fileno(f); + if (_isatty(fd)) { + std::fflush(f); + if (write_console(fd, text)) return; + } #endif - detail::fwrite_fully(text.data(), 1, text.size(), f); + fwrite_all(text.data(), text.size(), f); } } // namespace detail -FMT_FUNC void vprint(std::FILE* f, string_view format_str, format_args args) { - memory_buffer buffer; - detail::vformat_to(buffer, format_str, args); - detail::print(f, {buffer.data(), buffer.size()}); +FMT_FUNC void vprint_buffered(std::FILE* f, string_view fmt, format_args args) { + auto buffer = memory_buffer(); + detail::vformat_to(buffer, fmt, args); + detail::print(f, {buffer.data(), buffer.size()}); } -#ifdef _WIN32 -// Print assuming legacy (non-Unicode) encoding. -FMT_FUNC void detail::vprint_mojibake(std::FILE* f, string_view format_str, format_args args) { - memory_buffer buffer; - detail::vformat_to(buffer, format_str, basic_format_args>(args)); - fwrite_fully(buffer.data(), 1, buffer.size(), f); +FMT_FUNC void vprint(std::FILE* f, string_view fmt, format_args args) { + if (!detail::file_ref(f).is_buffered() || !detail::has_flockfile<>()) + return vprint_buffered(f, fmt, args); + auto&& buffer = detail::file_print_buffer<>(f); + return detail::vformat_to(buffer, fmt, args); +} + +FMT_FUNC void vprintln(std::FILE* f, string_view fmt, format_args args) { + auto buffer = memory_buffer(); + detail::vformat_to(buffer, fmt, args); + buffer.push_back('\n'); + detail::print(f, {buffer.data(), buffer.size()}); } -#endif -FMT_FUNC void vprint(string_view format_str, format_args args) { vprint(stdout, format_str, args); } +FMT_FUNC void vprint(string_view fmt, format_args args) { + vprint(stdout, fmt, args); +} namespace detail { struct singleton { - unsigned char upper; - unsigned char lower_count; + unsigned char upper; + unsigned char lower_count; }; -inline auto is_printable(uint16_t x, - const singleton* singletons, +inline auto is_printable(uint16_t x, const singleton* singletons, size_t singletons_size, const unsigned char* singleton_lowers, - const unsigned char* normal, - size_t normal_size) -> bool { - auto upper = x >> 8; - auto lower_start = 0; - for (size_t i = 0; i < singletons_size; ++i) { - auto s = singletons[i]; - auto lower_end = lower_start + s.lower_count; - if (upper < s.upper) break; - if (upper == s.upper) { - for (auto j = lower_start; j < lower_end; ++j) { - if (singleton_lowers[j] == (x & 0xff)) return false; - } - } - lower_start = lower_end; - } - - auto xsigned = static_cast(x); - auto current = true; - for (size_t i = 0; i < normal_size; ++i) { - auto v = static_cast(normal[i]); - auto len = (v & 0x80) != 0 ? (v & 0x7f) << 8 | normal[++i] : v; - xsigned -= len; - if (xsigned < 0) break; - current = !current; + const unsigned char* normal, size_t normal_size) + -> bool { + auto upper = x >> 8; + auto lower_start = 0; + for (size_t i = 0; i < singletons_size; ++i) { + auto s = singletons[i]; + auto lower_end = lower_start + s.lower_count; + if (upper < s.upper) break; + if (upper == s.upper) { + for (auto j = lower_start; j < lower_end; ++j) { + if (singleton_lowers[j] == (x & 0xff)) return false; + } } - return current; + lower_start = lower_end; + } + + auto xsigned = static_cast(x); + auto current = true; + for (size_t i = 0; i < normal_size; ++i) { + auto v = static_cast(normal[i]); + auto len = (v & 0x80) != 0 ? (v & 0x7f) << 8 | normal[++i] : v; + xsigned -= len; + if (xsigned < 0) break; + current = !current; + } + return current; } // This code is generated by support/printable.py. FMT_FUNC auto is_printable(uint32_t cp) -> bool { - static constexpr singleton singletons0[] = { - {0x00, 1}, {0x03, 5}, {0x05, 6}, {0x06, 3}, {0x07, 6}, {0x08, 8}, {0x09, 17}, - {0x0a, 28}, {0x0b, 25}, {0x0c, 20}, {0x0d, 16}, {0x0e, 13}, {0x0f, 4}, {0x10, 3}, - {0x12, 18}, {0x13, 9}, {0x16, 1}, {0x17, 5}, {0x18, 2}, {0x19, 3}, {0x1a, 7}, - {0x1c, 2}, {0x1d, 1}, {0x1f, 22}, {0x20, 3}, {0x2b, 3}, {0x2c, 2}, {0x2d, 11}, - {0x2e, 1}, {0x30, 3}, {0x31, 2}, {0x32, 1}, {0xa7, 2}, {0xa9, 2}, {0xaa, 4}, - {0xab, 8}, {0xfa, 2}, {0xfb, 5}, {0xfd, 4}, {0xfe, 3}, {0xff, 9}, - }; - static constexpr unsigned char singletons0_lower[] = { - 0xad, 0x78, 0x79, 0x8b, 0x8d, 0xa2, 0x30, 0x57, 0x58, 0x8b, 0x8c, 0x90, 0x1c, 0x1d, 0xdd, - 0x0e, 0x0f, 0x4b, 0x4c, 0xfb, 0xfc, 0x2e, 0x2f, 0x3f, 0x5c, 0x5d, 0x5f, 0xb5, 0xe2, 0x84, - 0x8d, 0x8e, 0x91, 0x92, 0xa9, 0xb1, 0xba, 0xbb, 0xc5, 0xc6, 0xc9, 0xca, 0xde, 0xe4, 0xe5, - 0xff, 0x00, 0x04, 0x11, 0x12, 0x29, 0x31, 0x34, 0x37, 0x3a, 0x3b, 0x3d, 0x49, 0x4a, 0x5d, - 0x84, 0x8e, 0x92, 0xa9, 0xb1, 0xb4, 0xba, 0xbb, 0xc6, 0xca, 0xce, 0xcf, 0xe4, 0xe5, 0x00, - 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, 0x31, 0x34, 0x3a, 0x3b, 0x45, 0x46, 0x49, 0x4a, 0x5e, - 0x64, 0x65, 0x84, 0x91, 0x9b, 0x9d, 0xc9, 0xce, 0xcf, 0x0d, 0x11, 0x29, 0x45, 0x49, 0x57, - 0x64, 0x65, 0x8d, 0x91, 0xa9, 0xb4, 0xba, 0xbb, 0xc5, 0xc9, 0xdf, 0xe4, 0xe5, 0xf0, 0x0d, - 0x11, 0x45, 0x49, 0x64, 0x65, 0x80, 0x84, 0xb2, 0xbc, 0xbe, 0xbf, 0xd5, 0xd7, 0xf0, 0xf1, - 0x83, 0x85, 0x8b, 0xa4, 0xa6, 0xbe, 0xbf, 0xc5, 0xc7, 0xce, 0xcf, 0xda, 0xdb, 0x48, 0x98, - 0xbd, 0xcd, 0xc6, 0xce, 0xcf, 0x49, 0x4e, 0x4f, 0x57, 0x59, 0x5e, 0x5f, 0x89, 0x8e, 0x8f, - 0xb1, 0xb6, 0xb7, 0xbf, 0xc1, 0xc6, 0xc7, 0xd7, 0x11, 0x16, 0x17, 0x5b, 0x5c, 0xf6, 0xf7, - 0xfe, 0xff, 0x80, 0x0d, 0x6d, 0x71, 0xde, 0xdf, 0x0e, 0x0f, 0x1f, 0x6e, 0x6f, 0x1c, 0x1d, - 0x5f, 0x7d, 0x7e, 0xae, 0xaf, 0xbb, 0xbc, 0xfa, 0x16, 0x17, 0x1e, 0x1f, 0x46, 0x47, 0x4e, - 0x4f, 0x58, 0x5a, 0x5c, 0x5e, 0x7e, 0x7f, 0xb5, 0xc5, 0xd4, 0xd5, 0xdc, 0xf0, 0xf1, 0xf5, - 0x72, 0x73, 0x8f, 0x74, 0x75, 0x96, 0x2f, 0x5f, 0x26, 0x2e, 0x2f, 0xa7, 0xaf, 0xb7, 0xbf, - 0xc7, 0xcf, 0xd7, 0xdf, 0x9a, 0x40, 0x97, 0x98, 0x30, 0x8f, 0x1f, 0xc0, 0xc1, 0xce, 0xff, - 0x4e, 0x4f, 0x5a, 0x5b, 0x07, 0x08, 0x0f, 0x10, 0x27, 0x2f, 0xee, 0xef, 0x6e, 0x6f, 0x37, - 0x3d, 0x3f, 0x42, 0x45, 0x90, 0x91, 0xfe, 0xff, 0x53, 0x67, 0x75, 0xc8, 0xc9, 0xd0, 0xd1, - 0xd8, 0xd9, 0xe7, 0xfe, 0xff, - }; - static constexpr singleton singletons1[] = { - {0x00, 6}, {0x01, 1}, {0x03, 1}, {0x04, 2}, {0x08, 8}, {0x09, 2}, {0x0a, 5}, {0x0b, 2}, - {0x0e, 4}, {0x10, 1}, {0x11, 2}, {0x12, 5}, {0x13, 17}, {0x14, 1}, {0x15, 2}, {0x17, 2}, - {0x19, 13}, {0x1c, 5}, {0x1d, 8}, {0x24, 1}, {0x6a, 3}, {0x6b, 2}, {0xbc, 2}, {0xd1, 2}, - {0xd4, 12}, {0xd5, 9}, {0xd6, 2}, {0xd7, 2}, {0xda, 1}, {0xe0, 5}, {0xe1, 2}, {0xe8, 2}, - {0xee, 32}, {0xf0, 4}, {0xf8, 2}, {0xf9, 2}, {0xfa, 2}, {0xfb, 1}, - }; - static constexpr unsigned char singletons1_lower[] = { - 0x0c, 0x27, 0x3b, 0x3e, 0x4e, 0x4f, 0x8f, 0x9e, 0x9e, 0x9f, 0x06, 0x07, 0x09, 0x36, 0x3d, - 0x3e, 0x56, 0xf3, 0xd0, 0xd1, 0x04, 0x14, 0x18, 0x36, 0x37, 0x56, 0x57, 0x7f, 0xaa, 0xae, - 0xaf, 0xbd, 0x35, 0xe0, 0x12, 0x87, 0x89, 0x8e, 0x9e, 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, - 0x31, 0x34, 0x3a, 0x45, 0x46, 0x49, 0x4a, 0x4e, 0x4f, 0x64, 0x65, 0x5c, 0xb6, 0xb7, 0x1b, - 0x1c, 0x07, 0x08, 0x0a, 0x0b, 0x14, 0x17, 0x36, 0x39, 0x3a, 0xa8, 0xa9, 0xd8, 0xd9, 0x09, - 0x37, 0x90, 0x91, 0xa8, 0x07, 0x0a, 0x3b, 0x3e, 0x66, 0x69, 0x8f, 0x92, 0x6f, 0x5f, 0xee, - 0xef, 0x5a, 0x62, 0x9a, 0x9b, 0x27, 0x28, 0x55, 0x9d, 0xa0, 0xa1, 0xa3, 0xa4, 0xa7, 0xa8, - 0xad, 0xba, 0xbc, 0xc4, 0x06, 0x0b, 0x0c, 0x15, 0x1d, 0x3a, 0x3f, 0x45, 0x51, 0xa6, 0xa7, - 0xcc, 0xcd, 0xa0, 0x07, 0x19, 0x1a, 0x22, 0x25, 0x3e, 0x3f, 0xc5, 0xc6, 0x04, 0x20, 0x23, - 0x25, 0x26, 0x28, 0x33, 0x38, 0x3a, 0x48, 0x4a, 0x4c, 0x50, 0x53, 0x55, 0x56, 0x58, 0x5a, - 0x5c, 0x5e, 0x60, 0x63, 0x65, 0x66, 0x6b, 0x73, 0x78, 0x7d, 0x7f, 0x8a, 0xa4, 0xaa, 0xaf, - 0xb0, 0xc0, 0xd0, 0xae, 0xaf, 0x79, 0xcc, 0x6e, 0x6f, 0x93, - }; - static constexpr unsigned char normal0[] = { - 0x00, 0x20, 0x5f, 0x22, 0x82, 0xdf, 0x04, 0x82, 0x44, 0x08, 0x1b, 0x04, 0x06, 0x11, 0x81, - 0xac, 0x0e, 0x80, 0xab, 0x35, 0x28, 0x0b, 0x80, 0xe0, 0x03, 0x19, 0x08, 0x01, 0x04, 0x2f, - 0x04, 0x34, 0x04, 0x07, 0x03, 0x01, 0x07, 0x06, 0x07, 0x11, 0x0a, 0x50, 0x0f, 0x12, 0x07, - 0x55, 0x07, 0x03, 0x04, 0x1c, 0x0a, 0x09, 0x03, 0x08, 0x03, 0x07, 0x03, 0x02, 0x03, 0x03, - 0x03, 0x0c, 0x04, 0x05, 0x03, 0x0b, 0x06, 0x01, 0x0e, 0x15, 0x05, 0x3a, 0x03, 0x11, 0x07, - 0x06, 0x05, 0x10, 0x07, 0x57, 0x07, 0x02, 0x07, 0x15, 0x0d, 0x50, 0x04, 0x43, 0x03, 0x2d, - 0x03, 0x01, 0x04, 0x11, 0x06, 0x0f, 0x0c, 0x3a, 0x04, 0x1d, 0x25, 0x5f, 0x20, 0x6d, 0x04, - 0x6a, 0x25, 0x80, 0xc8, 0x05, 0x82, 0xb0, 0x03, 0x1a, 0x06, 0x82, 0xfd, 0x03, 0x59, 0x07, - 0x15, 0x0b, 0x17, 0x09, 0x14, 0x0c, 0x14, 0x0c, 0x6a, 0x06, 0x0a, 0x06, 0x1a, 0x06, 0x59, - 0x07, 0x2b, 0x05, 0x46, 0x0a, 0x2c, 0x04, 0x0c, 0x04, 0x01, 0x03, 0x31, 0x0b, 0x2c, 0x04, - 0x1a, 0x06, 0x0b, 0x03, 0x80, 0xac, 0x06, 0x0a, 0x06, 0x21, 0x3f, 0x4c, 0x04, 0x2d, 0x03, - 0x74, 0x08, 0x3c, 0x03, 0x0f, 0x03, 0x3c, 0x07, 0x38, 0x08, 0x2b, 0x05, 0x82, 0xff, 0x11, - 0x18, 0x08, 0x2f, 0x11, 0x2d, 0x03, 0x20, 0x10, 0x21, 0x0f, 0x80, 0x8c, 0x04, 0x82, 0x97, - 0x19, 0x0b, 0x15, 0x88, 0x94, 0x05, 0x2f, 0x05, 0x3b, 0x07, 0x02, 0x0e, 0x18, 0x09, 0x80, - 0xb3, 0x2d, 0x74, 0x0c, 0x80, 0xd6, 0x1a, 0x0c, 0x05, 0x80, 0xff, 0x05, 0x80, 0xdf, 0x0c, - 0xee, 0x0d, 0x03, 0x84, 0x8d, 0x03, 0x37, 0x09, 0x81, 0x5c, 0x14, 0x80, 0xb8, 0x08, 0x80, - 0xcb, 0x2a, 0x38, 0x03, 0x0a, 0x06, 0x38, 0x08, 0x46, 0x08, 0x0c, 0x06, 0x74, 0x0b, 0x1e, - 0x03, 0x5a, 0x04, 0x59, 0x09, 0x80, 0x83, 0x18, 0x1c, 0x0a, 0x16, 0x09, 0x4c, 0x04, 0x80, - 0x8a, 0x06, 0xab, 0xa4, 0x0c, 0x17, 0x04, 0x31, 0xa1, 0x04, 0x81, 0xda, 0x26, 0x07, 0x0c, - 0x05, 0x05, 0x80, 0xa5, 0x11, 0x81, 0x6d, 0x10, 0x78, 0x28, 0x2a, 0x06, 0x4c, 0x04, 0x80, - 0x8d, 0x04, 0x80, 0xbe, 0x03, 0x1b, 0x03, 0x0f, 0x0d, - }; - static constexpr unsigned char normal1[] = { - 0x5e, 0x22, 0x7b, 0x05, 0x03, 0x04, 0x2d, 0x03, 0x66, 0x03, 0x01, 0x2f, 0x2e, 0x80, 0x82, - 0x1d, 0x03, 0x31, 0x0f, 0x1c, 0x04, 0x24, 0x09, 0x1e, 0x05, 0x2b, 0x05, 0x44, 0x04, 0x0e, - 0x2a, 0x80, 0xaa, 0x06, 0x24, 0x04, 0x24, 0x04, 0x28, 0x08, 0x34, 0x0b, 0x01, 0x80, 0x90, - 0x81, 0x37, 0x09, 0x16, 0x0a, 0x08, 0x80, 0x98, 0x39, 0x03, 0x63, 0x08, 0x09, 0x30, 0x16, - 0x05, 0x21, 0x03, 0x1b, 0x05, 0x01, 0x40, 0x38, 0x04, 0x4b, 0x05, 0x2f, 0x04, 0x0a, 0x07, - 0x09, 0x07, 0x40, 0x20, 0x27, 0x04, 0x0c, 0x09, 0x36, 0x03, 0x3a, 0x05, 0x1a, 0x07, 0x04, - 0x0c, 0x07, 0x50, 0x49, 0x37, 0x33, 0x0d, 0x33, 0x07, 0x2e, 0x08, 0x0a, 0x81, 0x26, 0x52, - 0x4e, 0x28, 0x08, 0x2a, 0x56, 0x1c, 0x14, 0x17, 0x09, 0x4e, 0x04, 0x1e, 0x0f, 0x43, 0x0e, - 0x19, 0x07, 0x0a, 0x06, 0x48, 0x08, 0x27, 0x09, 0x75, 0x0b, 0x3f, 0x41, 0x2a, 0x06, 0x3b, - 0x05, 0x0a, 0x06, 0x51, 0x06, 0x01, 0x05, 0x10, 0x03, 0x05, 0x80, 0x8b, 0x62, 0x1e, 0x48, - 0x08, 0x0a, 0x80, 0xa6, 0x5e, 0x22, 0x45, 0x0b, 0x0a, 0x06, 0x0d, 0x13, 0x39, 0x07, 0x0a, - 0x36, 0x2c, 0x04, 0x10, 0x80, 0xc0, 0x3c, 0x64, 0x53, 0x0c, 0x48, 0x09, 0x0a, 0x46, 0x45, - 0x1b, 0x48, 0x08, 0x53, 0x1d, 0x39, 0x81, 0x07, 0x46, 0x0a, 0x1d, 0x03, 0x47, 0x49, 0x37, - 0x03, 0x0e, 0x08, 0x0a, 0x06, 0x39, 0x07, 0x0a, 0x81, 0x36, 0x19, 0x80, 0xb7, 0x01, 0x0f, - 0x32, 0x0d, 0x83, 0x9b, 0x66, 0x75, 0x0b, 0x80, 0xc4, 0x8a, 0xbc, 0x84, 0x2f, 0x8f, 0xd1, - 0x82, 0x47, 0xa1, 0xb9, 0x82, 0x39, 0x07, 0x2a, 0x04, 0x02, 0x60, 0x26, 0x0a, 0x46, 0x0a, - 0x28, 0x05, 0x13, 0x82, 0xb0, 0x5b, 0x65, 0x4b, 0x04, 0x39, 0x07, 0x11, 0x40, 0x05, 0x0b, - 0x02, 0x0e, 0x97, 0xf8, 0x08, 0x84, 0xd6, 0x2a, 0x09, 0xa2, 0xf7, 0x81, 0x1f, 0x31, 0x03, - 0x11, 0x04, 0x08, 0x81, 0x8c, 0x89, 0x04, 0x6b, 0x05, 0x0d, 0x03, 0x09, 0x07, 0x10, 0x93, - 0x60, 0x80, 0xf6, 0x0a, 0x73, 0x08, 0x6e, 0x17, 0x46, 0x80, 0x9a, 0x14, 0x0c, 0x57, 0x09, - 0x19, 0x80, 0x87, 0x81, 0x47, 0x03, 0x85, 0x42, 0x0f, 0x15, 0x85, 0x50, 0x2b, 0x80, 0xd5, - 0x2d, 0x03, 0x1a, 0x04, 0x02, 0x81, 0x70, 0x3a, 0x05, 0x01, 0x85, 0x00, 0x80, 0xd7, 0x29, - 0x4c, 0x04, 0x0a, 0x04, 0x02, 0x83, 0x11, 0x44, 0x4c, 0x3d, 0x80, 0xc2, 0x3c, 0x06, 0x01, - 0x04, 0x55, 0x05, 0x1b, 0x34, 0x02, 0x81, 0x0e, 0x2c, 0x04, 0x64, 0x0c, 0x56, 0x0a, 0x80, - 0xae, 0x38, 0x1d, 0x0d, 0x2c, 0x04, 0x09, 0x07, 0x02, 0x0e, 0x06, 0x80, 0x9a, 0x83, 0xd8, - 0x08, 0x0d, 0x03, 0x0d, 0x03, 0x74, 0x0c, 0x59, 0x07, 0x0c, 0x14, 0x0c, 0x04, 0x38, 0x08, - 0x0a, 0x06, 0x28, 0x08, 0x22, 0x4e, 0x81, 0x54, 0x0c, 0x15, 0x03, 0x03, 0x05, 0x07, 0x09, - 0x19, 0x07, 0x07, 0x09, 0x03, 0x0d, 0x07, 0x29, 0x80, 0xcb, 0x25, 0x0a, 0x84, 0x06, - }; - auto lower = static_cast(cp); - if (cp < 0x10000) { - return is_printable(lower, singletons0, sizeof(singletons0) / sizeof(*singletons0), - singletons0_lower, normal0, sizeof(normal0)); - } - if (cp < 0x20000) { - return is_printable(lower, singletons1, sizeof(singletons1) / sizeof(*singletons1), - singletons1_lower, normal1, sizeof(normal1)); - } - if (0x2a6de <= cp && cp < 0x2a700) return false; - if (0x2b735 <= cp && cp < 0x2b740) return false; - if (0x2b81e <= cp && cp < 0x2b820) return false; - if (0x2cea2 <= cp && cp < 0x2ceb0) return false; - if (0x2ebe1 <= cp && cp < 0x2f800) return false; - if (0x2fa1e <= cp && cp < 0x30000) return false; - if (0x3134b <= cp && cp < 0xe0100) return false; - if (0xe01f0 <= cp && cp < 0x110000) return false; - return cp < 0x110000; + static constexpr singleton singletons0[] = { + {0x00, 1}, {0x03, 5}, {0x05, 6}, {0x06, 3}, {0x07, 6}, {0x08, 8}, + {0x09, 17}, {0x0a, 28}, {0x0b, 25}, {0x0c, 20}, {0x0d, 16}, {0x0e, 13}, + {0x0f, 4}, {0x10, 3}, {0x12, 18}, {0x13, 9}, {0x16, 1}, {0x17, 5}, + {0x18, 2}, {0x19, 3}, {0x1a, 7}, {0x1c, 2}, {0x1d, 1}, {0x1f, 22}, + {0x20, 3}, {0x2b, 3}, {0x2c, 2}, {0x2d, 11}, {0x2e, 1}, {0x30, 3}, + {0x31, 2}, {0x32, 1}, {0xa7, 2}, {0xa9, 2}, {0xaa, 4}, {0xab, 8}, + {0xfa, 2}, {0xfb, 5}, {0xfd, 4}, {0xfe, 3}, {0xff, 9}, + }; + static constexpr unsigned char singletons0_lower[] = { + 0xad, 0x78, 0x79, 0x8b, 0x8d, 0xa2, 0x30, 0x57, 0x58, 0x8b, 0x8c, 0x90, + 0x1c, 0x1d, 0xdd, 0x0e, 0x0f, 0x4b, 0x4c, 0xfb, 0xfc, 0x2e, 0x2f, 0x3f, + 0x5c, 0x5d, 0x5f, 0xb5, 0xe2, 0x84, 0x8d, 0x8e, 0x91, 0x92, 0xa9, 0xb1, + 0xba, 0xbb, 0xc5, 0xc6, 0xc9, 0xca, 0xde, 0xe4, 0xe5, 0xff, 0x00, 0x04, + 0x11, 0x12, 0x29, 0x31, 0x34, 0x37, 0x3a, 0x3b, 0x3d, 0x49, 0x4a, 0x5d, + 0x84, 0x8e, 0x92, 0xa9, 0xb1, 0xb4, 0xba, 0xbb, 0xc6, 0xca, 0xce, 0xcf, + 0xe4, 0xe5, 0x00, 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, 0x31, 0x34, 0x3a, + 0x3b, 0x45, 0x46, 0x49, 0x4a, 0x5e, 0x64, 0x65, 0x84, 0x91, 0x9b, 0x9d, + 0xc9, 0xce, 0xcf, 0x0d, 0x11, 0x29, 0x45, 0x49, 0x57, 0x64, 0x65, 0x8d, + 0x91, 0xa9, 0xb4, 0xba, 0xbb, 0xc5, 0xc9, 0xdf, 0xe4, 0xe5, 0xf0, 0x0d, + 0x11, 0x45, 0x49, 0x64, 0x65, 0x80, 0x84, 0xb2, 0xbc, 0xbe, 0xbf, 0xd5, + 0xd7, 0xf0, 0xf1, 0x83, 0x85, 0x8b, 0xa4, 0xa6, 0xbe, 0xbf, 0xc5, 0xc7, + 0xce, 0xcf, 0xda, 0xdb, 0x48, 0x98, 0xbd, 0xcd, 0xc6, 0xce, 0xcf, 0x49, + 0x4e, 0x4f, 0x57, 0x59, 0x5e, 0x5f, 0x89, 0x8e, 0x8f, 0xb1, 0xb6, 0xb7, + 0xbf, 0xc1, 0xc6, 0xc7, 0xd7, 0x11, 0x16, 0x17, 0x5b, 0x5c, 0xf6, 0xf7, + 0xfe, 0xff, 0x80, 0x0d, 0x6d, 0x71, 0xde, 0xdf, 0x0e, 0x0f, 0x1f, 0x6e, + 0x6f, 0x1c, 0x1d, 0x5f, 0x7d, 0x7e, 0xae, 0xaf, 0xbb, 0xbc, 0xfa, 0x16, + 0x17, 0x1e, 0x1f, 0x46, 0x47, 0x4e, 0x4f, 0x58, 0x5a, 0x5c, 0x5e, 0x7e, + 0x7f, 0xb5, 0xc5, 0xd4, 0xd5, 0xdc, 0xf0, 0xf1, 0xf5, 0x72, 0x73, 0x8f, + 0x74, 0x75, 0x96, 0x2f, 0x5f, 0x26, 0x2e, 0x2f, 0xa7, 0xaf, 0xb7, 0xbf, + 0xc7, 0xcf, 0xd7, 0xdf, 0x9a, 0x40, 0x97, 0x98, 0x30, 0x8f, 0x1f, 0xc0, + 0xc1, 0xce, 0xff, 0x4e, 0x4f, 0x5a, 0x5b, 0x07, 0x08, 0x0f, 0x10, 0x27, + 0x2f, 0xee, 0xef, 0x6e, 0x6f, 0x37, 0x3d, 0x3f, 0x42, 0x45, 0x90, 0x91, + 0xfe, 0xff, 0x53, 0x67, 0x75, 0xc8, 0xc9, 0xd0, 0xd1, 0xd8, 0xd9, 0xe7, + 0xfe, 0xff, + }; + static constexpr singleton singletons1[] = { + {0x00, 6}, {0x01, 1}, {0x03, 1}, {0x04, 2}, {0x08, 8}, {0x09, 2}, + {0x0a, 5}, {0x0b, 2}, {0x0e, 4}, {0x10, 1}, {0x11, 2}, {0x12, 5}, + {0x13, 17}, {0x14, 1}, {0x15, 2}, {0x17, 2}, {0x19, 13}, {0x1c, 5}, + {0x1d, 8}, {0x24, 1}, {0x6a, 3}, {0x6b, 2}, {0xbc, 2}, {0xd1, 2}, + {0xd4, 12}, {0xd5, 9}, {0xd6, 2}, {0xd7, 2}, {0xda, 1}, {0xe0, 5}, + {0xe1, 2}, {0xe8, 2}, {0xee, 32}, {0xf0, 4}, {0xf8, 2}, {0xf9, 2}, + {0xfa, 2}, {0xfb, 1}, + }; + static constexpr unsigned char singletons1_lower[] = { + 0x0c, 0x27, 0x3b, 0x3e, 0x4e, 0x4f, 0x8f, 0x9e, 0x9e, 0x9f, 0x06, 0x07, + 0x09, 0x36, 0x3d, 0x3e, 0x56, 0xf3, 0xd0, 0xd1, 0x04, 0x14, 0x18, 0x36, + 0x37, 0x56, 0x57, 0x7f, 0xaa, 0xae, 0xaf, 0xbd, 0x35, 0xe0, 0x12, 0x87, + 0x89, 0x8e, 0x9e, 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, 0x31, 0x34, 0x3a, + 0x45, 0x46, 0x49, 0x4a, 0x4e, 0x4f, 0x64, 0x65, 0x5c, 0xb6, 0xb7, 0x1b, + 0x1c, 0x07, 0x08, 0x0a, 0x0b, 0x14, 0x17, 0x36, 0x39, 0x3a, 0xa8, 0xa9, + 0xd8, 0xd9, 0x09, 0x37, 0x90, 0x91, 0xa8, 0x07, 0x0a, 0x3b, 0x3e, 0x66, + 0x69, 0x8f, 0x92, 0x6f, 0x5f, 0xee, 0xef, 0x5a, 0x62, 0x9a, 0x9b, 0x27, + 0x28, 0x55, 0x9d, 0xa0, 0xa1, 0xa3, 0xa4, 0xa7, 0xa8, 0xad, 0xba, 0xbc, + 0xc4, 0x06, 0x0b, 0x0c, 0x15, 0x1d, 0x3a, 0x3f, 0x45, 0x51, 0xa6, 0xa7, + 0xcc, 0xcd, 0xa0, 0x07, 0x19, 0x1a, 0x22, 0x25, 0x3e, 0x3f, 0xc5, 0xc6, + 0x04, 0x20, 0x23, 0x25, 0x26, 0x28, 0x33, 0x38, 0x3a, 0x48, 0x4a, 0x4c, + 0x50, 0x53, 0x55, 0x56, 0x58, 0x5a, 0x5c, 0x5e, 0x60, 0x63, 0x65, 0x66, + 0x6b, 0x73, 0x78, 0x7d, 0x7f, 0x8a, 0xa4, 0xaa, 0xaf, 0xb0, 0xc0, 0xd0, + 0xae, 0xaf, 0x79, 0xcc, 0x6e, 0x6f, 0x93, + }; + static constexpr unsigned char normal0[] = { + 0x00, 0x20, 0x5f, 0x22, 0x82, 0xdf, 0x04, 0x82, 0x44, 0x08, 0x1b, 0x04, + 0x06, 0x11, 0x81, 0xac, 0x0e, 0x80, 0xab, 0x35, 0x28, 0x0b, 0x80, 0xe0, + 0x03, 0x19, 0x08, 0x01, 0x04, 0x2f, 0x04, 0x34, 0x04, 0x07, 0x03, 0x01, + 0x07, 0x06, 0x07, 0x11, 0x0a, 0x50, 0x0f, 0x12, 0x07, 0x55, 0x07, 0x03, + 0x04, 0x1c, 0x0a, 0x09, 0x03, 0x08, 0x03, 0x07, 0x03, 0x02, 0x03, 0x03, + 0x03, 0x0c, 0x04, 0x05, 0x03, 0x0b, 0x06, 0x01, 0x0e, 0x15, 0x05, 0x3a, + 0x03, 0x11, 0x07, 0x06, 0x05, 0x10, 0x07, 0x57, 0x07, 0x02, 0x07, 0x15, + 0x0d, 0x50, 0x04, 0x43, 0x03, 0x2d, 0x03, 0x01, 0x04, 0x11, 0x06, 0x0f, + 0x0c, 0x3a, 0x04, 0x1d, 0x25, 0x5f, 0x20, 0x6d, 0x04, 0x6a, 0x25, 0x80, + 0xc8, 0x05, 0x82, 0xb0, 0x03, 0x1a, 0x06, 0x82, 0xfd, 0x03, 0x59, 0x07, + 0x15, 0x0b, 0x17, 0x09, 0x14, 0x0c, 0x14, 0x0c, 0x6a, 0x06, 0x0a, 0x06, + 0x1a, 0x06, 0x59, 0x07, 0x2b, 0x05, 0x46, 0x0a, 0x2c, 0x04, 0x0c, 0x04, + 0x01, 0x03, 0x31, 0x0b, 0x2c, 0x04, 0x1a, 0x06, 0x0b, 0x03, 0x80, 0xac, + 0x06, 0x0a, 0x06, 0x21, 0x3f, 0x4c, 0x04, 0x2d, 0x03, 0x74, 0x08, 0x3c, + 0x03, 0x0f, 0x03, 0x3c, 0x07, 0x38, 0x08, 0x2b, 0x05, 0x82, 0xff, 0x11, + 0x18, 0x08, 0x2f, 0x11, 0x2d, 0x03, 0x20, 0x10, 0x21, 0x0f, 0x80, 0x8c, + 0x04, 0x82, 0x97, 0x19, 0x0b, 0x15, 0x88, 0x94, 0x05, 0x2f, 0x05, 0x3b, + 0x07, 0x02, 0x0e, 0x18, 0x09, 0x80, 0xb3, 0x2d, 0x74, 0x0c, 0x80, 0xd6, + 0x1a, 0x0c, 0x05, 0x80, 0xff, 0x05, 0x80, 0xdf, 0x0c, 0xee, 0x0d, 0x03, + 0x84, 0x8d, 0x03, 0x37, 0x09, 0x81, 0x5c, 0x14, 0x80, 0xb8, 0x08, 0x80, + 0xcb, 0x2a, 0x38, 0x03, 0x0a, 0x06, 0x38, 0x08, 0x46, 0x08, 0x0c, 0x06, + 0x74, 0x0b, 0x1e, 0x03, 0x5a, 0x04, 0x59, 0x09, 0x80, 0x83, 0x18, 0x1c, + 0x0a, 0x16, 0x09, 0x4c, 0x04, 0x80, 0x8a, 0x06, 0xab, 0xa4, 0x0c, 0x17, + 0x04, 0x31, 0xa1, 0x04, 0x81, 0xda, 0x26, 0x07, 0x0c, 0x05, 0x05, 0x80, + 0xa5, 0x11, 0x81, 0x6d, 0x10, 0x78, 0x28, 0x2a, 0x06, 0x4c, 0x04, 0x80, + 0x8d, 0x04, 0x80, 0xbe, 0x03, 0x1b, 0x03, 0x0f, 0x0d, + }; + static constexpr unsigned char normal1[] = { + 0x5e, 0x22, 0x7b, 0x05, 0x03, 0x04, 0x2d, 0x03, 0x66, 0x03, 0x01, 0x2f, + 0x2e, 0x80, 0x82, 0x1d, 0x03, 0x31, 0x0f, 0x1c, 0x04, 0x24, 0x09, 0x1e, + 0x05, 0x2b, 0x05, 0x44, 0x04, 0x0e, 0x2a, 0x80, 0xaa, 0x06, 0x24, 0x04, + 0x24, 0x04, 0x28, 0x08, 0x34, 0x0b, 0x01, 0x80, 0x90, 0x81, 0x37, 0x09, + 0x16, 0x0a, 0x08, 0x80, 0x98, 0x39, 0x03, 0x63, 0x08, 0x09, 0x30, 0x16, + 0x05, 0x21, 0x03, 0x1b, 0x05, 0x01, 0x40, 0x38, 0x04, 0x4b, 0x05, 0x2f, + 0x04, 0x0a, 0x07, 0x09, 0x07, 0x40, 0x20, 0x27, 0x04, 0x0c, 0x09, 0x36, + 0x03, 0x3a, 0x05, 0x1a, 0x07, 0x04, 0x0c, 0x07, 0x50, 0x49, 0x37, 0x33, + 0x0d, 0x33, 0x07, 0x2e, 0x08, 0x0a, 0x81, 0x26, 0x52, 0x4e, 0x28, 0x08, + 0x2a, 0x56, 0x1c, 0x14, 0x17, 0x09, 0x4e, 0x04, 0x1e, 0x0f, 0x43, 0x0e, + 0x19, 0x07, 0x0a, 0x06, 0x48, 0x08, 0x27, 0x09, 0x75, 0x0b, 0x3f, 0x41, + 0x2a, 0x06, 0x3b, 0x05, 0x0a, 0x06, 0x51, 0x06, 0x01, 0x05, 0x10, 0x03, + 0x05, 0x80, 0x8b, 0x62, 0x1e, 0x48, 0x08, 0x0a, 0x80, 0xa6, 0x5e, 0x22, + 0x45, 0x0b, 0x0a, 0x06, 0x0d, 0x13, 0x39, 0x07, 0x0a, 0x36, 0x2c, 0x04, + 0x10, 0x80, 0xc0, 0x3c, 0x64, 0x53, 0x0c, 0x48, 0x09, 0x0a, 0x46, 0x45, + 0x1b, 0x48, 0x08, 0x53, 0x1d, 0x39, 0x81, 0x07, 0x46, 0x0a, 0x1d, 0x03, + 0x47, 0x49, 0x37, 0x03, 0x0e, 0x08, 0x0a, 0x06, 0x39, 0x07, 0x0a, 0x81, + 0x36, 0x19, 0x80, 0xb7, 0x01, 0x0f, 0x32, 0x0d, 0x83, 0x9b, 0x66, 0x75, + 0x0b, 0x80, 0xc4, 0x8a, 0xbc, 0x84, 0x2f, 0x8f, 0xd1, 0x82, 0x47, 0xa1, + 0xb9, 0x82, 0x39, 0x07, 0x2a, 0x04, 0x02, 0x60, 0x26, 0x0a, 0x46, 0x0a, + 0x28, 0x05, 0x13, 0x82, 0xb0, 0x5b, 0x65, 0x4b, 0x04, 0x39, 0x07, 0x11, + 0x40, 0x05, 0x0b, 0x02, 0x0e, 0x97, 0xf8, 0x08, 0x84, 0xd6, 0x2a, 0x09, + 0xa2, 0xf7, 0x81, 0x1f, 0x31, 0x03, 0x11, 0x04, 0x08, 0x81, 0x8c, 0x89, + 0x04, 0x6b, 0x05, 0x0d, 0x03, 0x09, 0x07, 0x10, 0x93, 0x60, 0x80, 0xf6, + 0x0a, 0x73, 0x08, 0x6e, 0x17, 0x46, 0x80, 0x9a, 0x14, 0x0c, 0x57, 0x09, + 0x19, 0x80, 0x87, 0x81, 0x47, 0x03, 0x85, 0x42, 0x0f, 0x15, 0x85, 0x50, + 0x2b, 0x80, 0xd5, 0x2d, 0x03, 0x1a, 0x04, 0x02, 0x81, 0x70, 0x3a, 0x05, + 0x01, 0x85, 0x00, 0x80, 0xd7, 0x29, 0x4c, 0x04, 0x0a, 0x04, 0x02, 0x83, + 0x11, 0x44, 0x4c, 0x3d, 0x80, 0xc2, 0x3c, 0x06, 0x01, 0x04, 0x55, 0x05, + 0x1b, 0x34, 0x02, 0x81, 0x0e, 0x2c, 0x04, 0x64, 0x0c, 0x56, 0x0a, 0x80, + 0xae, 0x38, 0x1d, 0x0d, 0x2c, 0x04, 0x09, 0x07, 0x02, 0x0e, 0x06, 0x80, + 0x9a, 0x83, 0xd8, 0x08, 0x0d, 0x03, 0x0d, 0x03, 0x74, 0x0c, 0x59, 0x07, + 0x0c, 0x14, 0x0c, 0x04, 0x38, 0x08, 0x0a, 0x06, 0x28, 0x08, 0x22, 0x4e, + 0x81, 0x54, 0x0c, 0x15, 0x03, 0x03, 0x05, 0x07, 0x09, 0x19, 0x07, 0x07, + 0x09, 0x03, 0x0d, 0x07, 0x29, 0x80, 0xcb, 0x25, 0x0a, 0x84, 0x06, + }; + auto lower = static_cast(cp); + if (cp < 0x10000) { + return is_printable(lower, singletons0, + sizeof(singletons0) / sizeof(*singletons0), + singletons0_lower, normal0, sizeof(normal0)); + } + if (cp < 0x20000) { + return is_printable(lower, singletons1, + sizeof(singletons1) / sizeof(*singletons1), + singletons1_lower, normal1, sizeof(normal1)); + } + if (0x2a6de <= cp && cp < 0x2a700) return false; + if (0x2b735 <= cp && cp < 0x2b740) return false; + if (0x2b81e <= cp && cp < 0x2b820) return false; + if (0x2cea2 <= cp && cp < 0x2ceb0) return false; + if (0x2ebe1 <= cp && cp < 0x2f800) return false; + if (0x2fa1e <= cp && cp < 0x30000) return false; + if (0x3134b <= cp && cp < 0xe0100) return false; + if (0xe01f0 <= cp && cp < 0x110000) return false; + return cp < 0x110000; } } // namespace detail diff --git a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/format.h b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/format.h index 181159440..50e571442 100644 --- a/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/format.h +++ b/modules/common/chowdsp_logging/third_party/spdlog/include/spdlog/fmt/bundled/format.h @@ -33,396 +33,354 @@ #ifndef FMT_FORMAT_H_ #define FMT_FORMAT_H_ -#include // std::signbit -#include // uint32_t -#include // std::memcpy -#include // std::numeric_limits -#include // std::uninitialized_copy -#include // std::runtime_error -#include // std::system_error - -#ifdef __cpp_lib_bit_cast - #include // std::bitcast +#ifndef _LIBCPP_REMOVE_TRANSITIVE_INCLUDES +# define _LIBCPP_REMOVE_TRANSITIVE_INCLUDES +# define FMT_REMOVE_TRANSITIVE_INCLUDES #endif -#include "core.h" - -#if FMT_GCC_VERSION - #define FMT_GCC_VISIBILITY_HIDDEN __attribute__((visibility("hidden"))) +#include "base.h" + +#ifndef FMT_MODULE +# include // std::signbit +# include // std::byte +# include // uint32_t +# include // std::memcpy +# include // std::numeric_limits +# include // std::bad_alloc +# if defined(__GLIBCXX__) && !defined(_GLIBCXX_USE_DUAL_ABI) +// Workaround for pre gcc 5 libstdc++. +# include // std::allocator_traits +# endif +# include // std::runtime_error +# include // std::string +# include // std::system_error + +// Check FMT_CPLUSPLUS to avoid a warning in MSVC. +# if FMT_HAS_INCLUDE() && FMT_CPLUSPLUS > 201703L +# include // std::bit_cast +# endif + +// libc++ supports string_view in pre-c++17. +# if FMT_HAS_INCLUDE() && \ + (FMT_CPLUSPLUS >= 201703L || defined(_LIBCPP_VERSION)) +# include +# define FMT_USE_STRING_VIEW +# endif + +# if FMT_MSC_VERSION +# include // _BitScanReverse[64], _umul128 +# endif +#endif // FMT_MODULE + +#if defined(FMT_USE_NONTYPE_TEMPLATE_ARGS) +// Use the provided definition. +#elif defined(__NVCOMPILER) +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 0 +#elif FMT_GCC_VERSION >= 903 && FMT_CPLUSPLUS >= 201709L +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 1 +#elif defined(__cpp_nontype_template_args) && \ + __cpp_nontype_template_args >= 201911L +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 1 +#elif FMT_CLANG_VERSION >= 1200 && FMT_CPLUSPLUS >= 202002L +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 1 #else - #define FMT_GCC_VISIBILITY_HIDDEN +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 0 #endif -#ifdef __NVCC__ - #define FMT_CUDA_VERSION (__CUDACC_VER_MAJOR__ * 100 + __CUDACC_VER_MINOR__) +#if defined __cpp_inline_variables && __cpp_inline_variables >= 201606L +# define FMT_INLINE_VARIABLE inline #else - #define FMT_CUDA_VERSION 0 +# define FMT_INLINE_VARIABLE #endif -#ifdef __has_builtin - #define FMT_HAS_BUILTIN(x) __has_builtin(x) +// Check if RTTI is disabled. +#ifdef FMT_USE_RTTI +// Use the provided definition. +#elif defined(__GXX_RTTI) || FMT_HAS_FEATURE(cxx_rtti) || defined(_CPPRTTI) || \ + defined(__INTEL_RTTI__) || defined(__RTTI) +// __RTTI is for EDG compilers. _CPPRTTI is for MSVC. +# define FMT_USE_RTTI 1 #else - #define FMT_HAS_BUILTIN(x) 0 +# define FMT_USE_RTTI 0 #endif -#if FMT_GCC_VERSION || FMT_CLANG_VERSION - #define FMT_NOINLINE __attribute__((noinline)) +// Visibility when compiled as a shared library/object. +#if defined(FMT_LIB_EXPORT) || defined(FMT_SHARED) +# define FMT_SO_VISIBILITY(value) FMT_VISIBILITY(value) #else - #define FMT_NOINLINE +# define FMT_SO_VISIBILITY(value) #endif -#if FMT_MSC_VERSION - #define FMT_MSC_DEFAULT = default +#if FMT_GCC_VERSION || FMT_CLANG_VERSION +# define FMT_NOINLINE __attribute__((noinline)) #else - #define FMT_MSC_DEFAULT +# define FMT_NOINLINE #endif +// GCC 4.9 doesn't support qualified names in specializations. +namespace std { +template struct iterator_traits> { + using iterator_category = output_iterator_tag; + using value_type = T; + using difference_type = + decltype(static_cast(nullptr) - static_cast(nullptr)); + using pointer = void; + using reference = void; +}; +} // namespace std + #ifndef FMT_THROW - #if FMT_EXCEPTIONS - #if FMT_MSC_VERSION || defined(__NVCC__) +# if FMT_USE_EXCEPTIONS +# if FMT_MSC_VERSION || defined(__NVCC__) FMT_BEGIN_NAMESPACE namespace detail { -template -inline void do_throw(const Exception& x) { - // Silence unreachable code warnings in MSVC and NVCC because these - // are nearly impossible to fix in a generic code. - volatile bool b = true; - if (b) throw x; +template inline void do_throw(const Exception& x) { + // Silence unreachable code warnings in MSVC and NVCC because these + // are nearly impossible to fix in a generic code. + volatile bool b = true; + if (b) throw x; } } // namespace detail FMT_END_NAMESPACE - #define FMT_THROW(x) detail::do_throw(x) - #else - #define FMT_THROW(x) throw x - #endif - #else - #define FMT_THROW(x) \ - do { \ - FMT_ASSERT(false, (x).what()); \ - } while (false) - #endif -#endif - -#if FMT_EXCEPTIONS - #define FMT_TRY try - #define FMT_CATCH(x) catch (x) -#else - #define FMT_TRY if (true) - #define FMT_CATCH(x) if (false) -#endif - -#ifndef FMT_MAYBE_UNUSED - #if FMT_HAS_CPP17_ATTRIBUTE(maybe_unused) - #define FMT_MAYBE_UNUSED [[maybe_unused]] - #else - #define FMT_MAYBE_UNUSED - #endif -#endif - -#ifndef FMT_USE_USER_DEFINED_LITERALS - // EDG based compilers (Intel, NVIDIA, Elbrus, etc), GCC and MSVC support UDLs. - #if (FMT_HAS_FEATURE(cxx_user_literals) || FMT_GCC_VERSION >= 407 || \ - FMT_MSC_VERSION >= 1900) && \ - (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= /* UDL feature */ 480) - #define FMT_USE_USER_DEFINED_LITERALS 1 - #else - #define FMT_USE_USER_DEFINED_LITERALS 0 - #endif -#endif +# define FMT_THROW(x) detail::do_throw(x) +# else +# define FMT_THROW(x) throw x +# endif +# else +# define FMT_THROW(x) \ + ::fmt::detail::assert_fail(__FILE__, __LINE__, (x).what()) +# endif // FMT_USE_EXCEPTIONS +#endif // FMT_THROW // Defining FMT_REDUCE_INT_INSTANTIATIONS to 1, will reduce the number of // integer formatter template instantiations to just one by only using the // largest integer type. This results in a reduction in binary size but will // cause a decrease in integer formatting performance. #if !defined(FMT_REDUCE_INT_INSTANTIATIONS) - #define FMT_REDUCE_INT_INSTANTIATIONS 0 +# define FMT_REDUCE_INT_INSTANTIATIONS 0 #endif -// __builtin_clz is broken in clang with Microsoft CodeGen: -// https://github.com/fmtlib/fmt/issues/519. -#if !FMT_MSC_VERSION - #if FMT_HAS_BUILTIN(__builtin_clz) || FMT_GCC_VERSION || FMT_ICC_VERSION - #define FMT_BUILTIN_CLZ(n) __builtin_clz(n) - #endif - #if FMT_HAS_BUILTIN(__builtin_clzll) || FMT_GCC_VERSION || FMT_ICC_VERSION - #define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n) - #endif -#endif +FMT_BEGIN_NAMESPACE -// __builtin_ctz is broken in Intel Compiler Classic on Windows: -// https://github.com/fmtlib/fmt/issues/2510. -#ifndef __ICL - #if FMT_HAS_BUILTIN(__builtin_ctz) || FMT_GCC_VERSION || FMT_ICC_VERSION || \ - defined(__NVCOMPILER) - #define FMT_BUILTIN_CTZ(n) __builtin_ctz(n) - #endif - #if FMT_HAS_BUILTIN(__builtin_ctzll) || FMT_GCC_VERSION || FMT_ICC_VERSION || \ - defined(__NVCOMPILER) - #define FMT_BUILTIN_CTZLL(n) __builtin_ctzll(n) - #endif -#endif +template +struct is_contiguous> + : std::true_type {}; -#if FMT_MSC_VERSION - #include // _BitScanReverse[64], _BitScanForward[64], _umul128 +namespace detail { + +// __builtin_clz is broken in clang with Microsoft codegen: +// https://github.com/fmtlib/fmt/issues/519. +#if !FMT_MSC_VERSION +# if FMT_HAS_BUILTIN(__builtin_clz) || FMT_GCC_VERSION || FMT_ICC_VERSION +# define FMT_BUILTIN_CLZ(n) __builtin_clz(n) +# endif +# if FMT_HAS_BUILTIN(__builtin_clzll) || FMT_GCC_VERSION || FMT_ICC_VERSION +# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n) +# endif #endif -// Some compilers masquerade as both MSVC and GCC-likes or otherwise support +// Some compilers masquerade as both MSVC and GCC but otherwise support // __builtin_clz and __builtin_clzll, so only define FMT_BUILTIN_CLZ using the // MSVC intrinsics if the clz and clzll builtins are not available. -#if FMT_MSC_VERSION && !defined(FMT_BUILTIN_CLZLL) && !defined(FMT_BUILTIN_CTZLL) -FMT_BEGIN_NAMESPACE -namespace detail { - // Avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning. - #if !defined(__clang__) - #pragma intrinsic(_BitScanForward) - #pragma intrinsic(_BitScanReverse) - #if defined(_WIN64) - #pragma intrinsic(_BitScanForward64) - #pragma intrinsic(_BitScanReverse64) - #endif - #endif +#if FMT_MSC_VERSION && !defined(FMT_BUILTIN_CLZLL) +// Avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning. +# ifndef __clang__ +# pragma intrinsic(_BitScanReverse) +# ifdef _WIN64 +# pragma intrinsic(_BitScanReverse64) +# endif +# endif inline auto clz(uint32_t x) -> int { - unsigned long r = 0; - _BitScanReverse(&r, x); - FMT_ASSERT(x != 0, ""); - // Static analysis complains about using uninitialized data - // "r", but the only way that can happen is if "x" is 0, - // which the callers guarantee to not happen. - FMT_MSC_WARNING(suppress : 6102) - return 31 ^ static_cast(r); + FMT_ASSERT(x != 0, ""); + FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning. + unsigned long r = 0; + _BitScanReverse(&r, x); + return 31 ^ static_cast(r); } - #define FMT_BUILTIN_CLZ(n) detail::clz(n) +# define FMT_BUILTIN_CLZ(n) detail::clz(n) inline auto clzll(uint64_t x) -> int { - unsigned long r = 0; - #ifdef _WIN64 - _BitScanReverse64(&r, x); - #else - // Scan the high 32 bits. - if (_BitScanReverse(&r, static_cast(x >> 32))) return 63 ^ (r + 32); - // Scan the low 32 bits. - _BitScanReverse(&r, static_cast(x)); - #endif - FMT_ASSERT(x != 0, ""); - FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning. - return 63 ^ static_cast(r); -} - #define FMT_BUILTIN_CLZLL(n) detail::clzll(n) - -inline auto ctz(uint32_t x) -> int { - unsigned long r = 0; - _BitScanForward(&r, x); - FMT_ASSERT(x != 0, ""); - FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning. - return static_cast(r); -} - #define FMT_BUILTIN_CTZ(n) detail::ctz(n) - -inline auto ctzll(uint64_t x) -> int { - unsigned long r = 0; - FMT_ASSERT(x != 0, ""); - FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning. - #ifdef _WIN64 - _BitScanForward64(&r, x); - #else - // Scan the low 32 bits. - if (_BitScanForward(&r, static_cast(x))) return static_cast(r); - // Scan the high 32 bits. - _BitScanForward(&r, static_cast(x >> 32)); - r += 32; - #endif - return static_cast(r); -} - #define FMT_BUILTIN_CTZLL(n) detail::ctzll(n) -} // namespace detail -FMT_END_NAMESPACE -#endif - -FMT_BEGIN_NAMESPACE -namespace detail { + FMT_ASSERT(x != 0, ""); + FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning. + unsigned long r = 0; +# ifdef _WIN64 + _BitScanReverse64(&r, x); +# else + // Scan the high 32 bits. + if (_BitScanReverse(&r, static_cast(x >> 32))) + return 63 ^ static_cast(r + 32); + // Scan the low 32 bits. + _BitScanReverse(&r, static_cast(x)); +# endif + return 63 ^ static_cast(r); +} +# define FMT_BUILTIN_CLZLL(n) detail::clzll(n) +#endif // FMT_MSC_VERSION && !defined(FMT_BUILTIN_CLZLL) FMT_CONSTEXPR inline void abort_fuzzing_if(bool condition) { - ignore_unused(condition); + ignore_unused(condition); #ifdef FMT_FUZZ - if (condition) throw std::runtime_error("fuzzing limit reached"); + if (condition) throw std::runtime_error("fuzzing limit reached"); #endif } -template -struct string_literal { - static constexpr CharT value[sizeof...(C)] = {C...}; - constexpr operator basic_string_view() const { return {value, sizeof...(C)}; } +#if defined(FMT_USE_STRING_VIEW) +template using std_string_view = std::basic_string_view; +#else +template struct std_string_view { + operator basic_string_view() const; }; - -#if FMT_CPLUSPLUS < 201703L -template -constexpr CharT string_literal::value[sizeof...(C)]; #endif -template -class formatbuf : public Streambuf { -private: - using char_type = typename Streambuf::char_type; - using streamsize = decltype(std::declval().sputn(nullptr, 0)); - using int_type = typename Streambuf::int_type; - using traits_type = typename Streambuf::traits_type; - - buffer& buffer_; - -public: - explicit formatbuf(buffer& buf) - : buffer_(buf) {} - -protected: - // The put area is always empty. This makes the implementation simpler and has - // the advantage that the streambuf and the buffer are always in sync and - // sputc never writes into uninitialized memory. A disadvantage is that each - // call to sputc always results in a (virtual) call to overflow. There is no - // disadvantage here for sputn since this always results in a call to xsputn. - - auto overflow(int_type ch) -> int_type override { - if (!traits_type::eq_int_type(ch, traits_type::eof())) - buffer_.push_back(static_cast(ch)); - return ch; - } - - auto xsputn(const char_type* s, streamsize count) -> streamsize override { - buffer_.append(s, s + count); - return count; - } +template struct string_literal { + static constexpr Char value[sizeof...(C)] = {C...}; + constexpr operator basic_string_view() const { + return {value, sizeof...(C)}; + } }; +#if FMT_CPLUSPLUS < 201703L +template +constexpr Char string_literal::value[sizeof...(C)]; +#endif // Implementation of std::bit_cast for pre-C++20. template FMT_CONSTEXPR20 auto bit_cast(const From& from) -> To { #ifdef __cpp_lib_bit_cast - if (is_constant_evaluated()) return std::bit_cast(from); + if (is_constant_evaluated()) return std::bit_cast(from); #endif - auto to = To(); - // The cast suppresses a bogus -Wclass-memaccess on GCC. - std::memcpy(static_cast(&to), &from, sizeof(to)); - return to; + auto to = To(); + // The cast suppresses a bogus -Wclass-memaccess on GCC. + std::memcpy(static_cast(&to), &from, sizeof(to)); + return to; } inline auto is_big_endian() -> bool { #ifdef _WIN32 - return false; + return false; #elif defined(__BIG_ENDIAN__) - return true; + return true; #elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) - return __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__; + return __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__; #else - struct bytes { - char data[sizeof(int)]; - }; - return bit_cast(1).data[0] == 0; + struct bytes { + char data[sizeof(int)]; + }; + return bit_cast(1).data[0] == 0; #endif } class uint128_fallback { -private: - uint64_t lo_, hi_; - - friend uint128_fallback umul128(uint64_t x, uint64_t y) noexcept; - -public: - constexpr uint128_fallback(uint64_t hi, uint64_t lo) - : lo_(lo), - hi_(hi) {} - constexpr uint128_fallback(uint64_t value = 0) - : lo_(value), - hi_(0) {} - - constexpr uint64_t high() const noexcept { return hi_; } - constexpr uint64_t low() const noexcept { return lo_; } - - template ::value)> - constexpr explicit operator T() const { - return static_cast(lo_); - } - - friend constexpr auto operator==(const uint128_fallback& lhs, const uint128_fallback& rhs) - -> bool { - return lhs.hi_ == rhs.hi_ && lhs.lo_ == rhs.lo_; - } - friend constexpr auto operator!=(const uint128_fallback& lhs, const uint128_fallback& rhs) - -> bool { - return !(lhs == rhs); - } - friend constexpr auto operator>(const uint128_fallback& lhs, const uint128_fallback& rhs) - -> bool { - return lhs.hi_ != rhs.hi_ ? lhs.hi_ > rhs.hi_ : lhs.lo_ > rhs.lo_; - } - friend constexpr auto operator|(const uint128_fallback& lhs, const uint128_fallback& rhs) - -> uint128_fallback { - return {lhs.hi_ | rhs.hi_, lhs.lo_ | rhs.lo_}; - } - friend constexpr auto operator&(const uint128_fallback& lhs, const uint128_fallback& rhs) - -> uint128_fallback { - return {lhs.hi_ & rhs.hi_, lhs.lo_ & rhs.lo_}; - } - friend auto operator+(const uint128_fallback& lhs, const uint128_fallback& rhs) - -> uint128_fallback { - auto result = uint128_fallback(lhs); - result += rhs; - return result; - } - friend auto operator*(const uint128_fallback& lhs, uint32_t rhs) -> uint128_fallback { - FMT_ASSERT(lhs.hi_ == 0, ""); - uint64_t hi = (lhs.lo_ >> 32) * rhs; - uint64_t lo = (lhs.lo_ & ~uint32_t()) * rhs; - uint64_t new_lo = (hi << 32) + lo; - return {(hi >> 32) + (new_lo < lo ? 1 : 0), new_lo}; - } - friend auto operator-(const uint128_fallback& lhs, uint64_t rhs) -> uint128_fallback { - return {lhs.hi_ - (lhs.lo_ < rhs ? 1 : 0), lhs.lo_ - rhs}; - } - FMT_CONSTEXPR auto operator>>(int shift) const -> uint128_fallback { - if (shift == 64) return {0, hi_}; - if (shift > 64) return uint128_fallback(0, hi_) >> (shift - 64); - return {hi_ >> shift, (hi_ << (64 - shift)) | (lo_ >> shift)}; - } - FMT_CONSTEXPR auto operator<<(int shift) const -> uint128_fallback { - if (shift == 64) return {lo_, 0}; - if (shift > 64) return uint128_fallback(lo_, 0) << (shift - 64); - return {hi_ << shift | (lo_ >> (64 - shift)), (lo_ << shift)}; - } - FMT_CONSTEXPR auto operator>>=(int shift) -> uint128_fallback& { - return *this = *this >> shift; - } - FMT_CONSTEXPR void operator+=(uint128_fallback n) { - uint64_t new_lo = lo_ + n.lo_; - uint64_t new_hi = hi_ + n.hi_ + (new_lo < lo_ ? 1 : 0); - FMT_ASSERT(new_hi >= hi_, ""); - lo_ = new_lo; - hi_ = new_hi; + private: + uint64_t lo_, hi_; + + public: + constexpr uint128_fallback(uint64_t hi, uint64_t lo) : lo_(lo), hi_(hi) {} + constexpr uint128_fallback(uint64_t value = 0) : lo_(value), hi_(0) {} + + constexpr auto high() const noexcept -> uint64_t { return hi_; } + constexpr auto low() const noexcept -> uint64_t { return lo_; } + + template ::value)> + constexpr explicit operator T() const { + return static_cast(lo_); + } + + friend constexpr auto operator==(const uint128_fallback& lhs, + const uint128_fallback& rhs) -> bool { + return lhs.hi_ == rhs.hi_ && lhs.lo_ == rhs.lo_; + } + friend constexpr auto operator!=(const uint128_fallback& lhs, + const uint128_fallback& rhs) -> bool { + return !(lhs == rhs); + } + friend constexpr auto operator>(const uint128_fallback& lhs, + const uint128_fallback& rhs) -> bool { + return lhs.hi_ != rhs.hi_ ? lhs.hi_ > rhs.hi_ : lhs.lo_ > rhs.lo_; + } + friend constexpr auto operator|(const uint128_fallback& lhs, + const uint128_fallback& rhs) + -> uint128_fallback { + return {lhs.hi_ | rhs.hi_, lhs.lo_ | rhs.lo_}; + } + friend constexpr auto operator&(const uint128_fallback& lhs, + const uint128_fallback& rhs) + -> uint128_fallback { + return {lhs.hi_ & rhs.hi_, lhs.lo_ & rhs.lo_}; + } + friend constexpr auto operator~(const uint128_fallback& n) + -> uint128_fallback { + return {~n.hi_, ~n.lo_}; + } + friend FMT_CONSTEXPR auto operator+(const uint128_fallback& lhs, + const uint128_fallback& rhs) + -> uint128_fallback { + auto result = uint128_fallback(lhs); + result += rhs; + return result; + } + friend FMT_CONSTEXPR auto operator*(const uint128_fallback& lhs, uint32_t rhs) + -> uint128_fallback { + FMT_ASSERT(lhs.hi_ == 0, ""); + uint64_t hi = (lhs.lo_ >> 32) * rhs; + uint64_t lo = (lhs.lo_ & ~uint32_t()) * rhs; + uint64_t new_lo = (hi << 32) + lo; + return {(hi >> 32) + (new_lo < lo ? 1 : 0), new_lo}; + } + friend constexpr auto operator-(const uint128_fallback& lhs, uint64_t rhs) + -> uint128_fallback { + return {lhs.hi_ - (lhs.lo_ < rhs ? 1 : 0), lhs.lo_ - rhs}; + } + FMT_CONSTEXPR auto operator>>(int shift) const -> uint128_fallback { + if (shift == 64) return {0, hi_}; + if (shift > 64) return uint128_fallback(0, hi_) >> (shift - 64); + return {hi_ >> shift, (hi_ << (64 - shift)) | (lo_ >> shift)}; + } + FMT_CONSTEXPR auto operator<<(int shift) const -> uint128_fallback { + if (shift == 64) return {lo_, 0}; + if (shift > 64) return uint128_fallback(lo_, 0) << (shift - 64); + return {hi_ << shift | (lo_ >> (64 - shift)), (lo_ << shift)}; + } + FMT_CONSTEXPR auto operator>>=(int shift) -> uint128_fallback& { + return *this = *this >> shift; + } + FMT_CONSTEXPR void operator+=(uint128_fallback n) { + uint64_t new_lo = lo_ + n.lo_; + uint64_t new_hi = hi_ + n.hi_ + (new_lo < lo_ ? 1 : 0); + FMT_ASSERT(new_hi >= hi_, ""); + lo_ = new_lo; + hi_ = new_hi; + } + FMT_CONSTEXPR void operator&=(uint128_fallback n) { + lo_ &= n.lo_; + hi_ &= n.hi_; + } + + FMT_CONSTEXPR20 auto operator+=(uint64_t n) noexcept -> uint128_fallback& { + if (is_constant_evaluated()) { + lo_ += n; + hi_ += (lo_ < n ? 1 : 0); + return *this; } - - FMT_CONSTEXPR20 uint128_fallback& operator+=(uint64_t n) noexcept { - if (is_constant_evaluated()) { - lo_ += n; - hi_ += (lo_ < n ? 1 : 0); - return *this; - } #if FMT_HAS_BUILTIN(__builtin_addcll) && !defined(__ibmxl__) - unsigned long long carry; - lo_ = __builtin_addcll(lo_, n, 0, &carry); - hi_ += carry; + unsigned long long carry; + lo_ = __builtin_addcll(lo_, n, 0, &carry); + hi_ += carry; #elif FMT_HAS_BUILTIN(__builtin_ia32_addcarryx_u64) && !defined(__ibmxl__) - unsigned long long result; - auto carry = __builtin_ia32_addcarryx_u64(0, lo_, n, &result); - lo_ = result; - hi_ += carry; + unsigned long long result; + auto carry = __builtin_ia32_addcarryx_u64(0, lo_, n, &result); + lo_ = result; + hi_ += carry; #elif defined(_MSC_VER) && defined(_M_X64) - auto carry = _addcarry_u64(0, lo_, n, &lo_); - _addcarry_u64(carry, hi_, 0, &hi_); + auto carry = _addcarry_u64(0, lo_, n, &lo_); + _addcarry_u64(carry, hi_, 0, &hi_); #else - lo_ += n; - hi_ += (lo_ < n ? 1 : 0); + lo_ += n; + hi_ += (lo_ < n ? 1 : 0); #endif - return *this; - } + return *this; + } }; using uint128_t = conditional_t; @@ -435,163 +393,147 @@ using uintptr_t = uint128_t; // Returns the largest possible value for type T. Same as // std::numeric_limits::max() but shorter and not affected by the max macro. -template -constexpr auto max_value() -> T { - return (std::numeric_limits::max)(); +template constexpr auto max_value() -> T { + return (std::numeric_limits::max)(); } -template -constexpr auto num_bits() -> int { - return std::numeric_limits::digits; +template constexpr auto num_bits() -> int { + return std::numeric_limits::digits; } // std::numeric_limits::digits may return 0 for 128-bit ints. -template <> -constexpr auto num_bits() -> int { - return 128; -} -template <> -constexpr auto num_bits() -> int { - return 128; -} +template <> constexpr auto num_bits() -> int { return 128; } +template <> constexpr auto num_bits() -> int { return 128; } +template <> constexpr auto num_bits() -> int { return 128; } // A heterogeneous bit_cast used for converting 96-bit long double to uint128_t // and 128-bit pointers to uint128_fallback. template sizeof(From))> inline auto bit_cast(const From& from) -> To { - constexpr auto size = static_cast(sizeof(From) / sizeof(unsigned)); - struct data_t { - unsigned value[static_cast(size)]; - } data = bit_cast(from); - auto result = To(); - if (const_check(is_big_endian())) { - for (int i = 0; i < size; ++i) result = (result << num_bits()) | data.value[i]; - } else { - for (int i = size - 1; i >= 0; --i) - result = (result << num_bits()) | data.value[i]; - } - return result; + constexpr auto size = static_cast(sizeof(From) / sizeof(unsigned short)); + struct data_t { + unsigned short value[static_cast(size)]; + } data = bit_cast(from); + auto result = To(); + if (const_check(is_big_endian())) { + for (int i = 0; i < size; ++i) + result = (result << num_bits()) | data.value[i]; + } else { + for (int i = size - 1; i >= 0; --i) + result = (result << num_bits()) | data.value[i]; + } + return result; } -FMT_INLINE void assume(bool condition) { - (void)condition; -#if FMT_HAS_BUILTIN(__builtin_assume) && !FMT_ICC_VERSION - __builtin_assume(condition); -#endif +template +FMT_CONSTEXPR20 inline auto countl_zero_fallback(UInt n) -> int { + int lz = 0; + constexpr UInt msb_mask = static_cast(1) << (num_bits() - 1); + for (; (n & msb_mask) == 0; n <<= 1) lz++; + return lz; } -// An approximation of iterator_t for pre-C++20 systems. -template -using iterator_t = decltype(std::begin(std::declval())); -template -using sentinel_t = decltype(std::end(std::declval())); - -// A workaround for std::string not having mutable data() until C++17. -template -inline auto get_data(std::basic_string& s) -> Char* { - return &s[0]; -} -template -inline auto get_data(Container& c) -> typename Container::value_type* { - return c.data(); +FMT_CONSTEXPR20 inline auto countl_zero(uint32_t n) -> int { +#ifdef FMT_BUILTIN_CLZ + if (!is_constant_evaluated()) return FMT_BUILTIN_CLZ(n); +#endif + return countl_zero_fallback(n); } -#if defined(_SECURE_SCL) && _SECURE_SCL -// Make a checked iterator to avoid MSVC warnings. -template -using checked_ptr = stdext::checked_array_iterator; -template -constexpr auto make_checked(T* p, size_t size) -> checked_ptr { - return {p, size}; -} -#else -template -using checked_ptr = T*; -template -constexpr auto make_checked(T* p, size_t) -> T* { - return p; +FMT_CONSTEXPR20 inline auto countl_zero(uint64_t n) -> int { +#ifdef FMT_BUILTIN_CLZLL + if (!is_constant_evaluated()) return FMT_BUILTIN_CLZLL(n); +#endif + return countl_zero_fallback(n); } + +FMT_INLINE void assume(bool condition) { + (void)condition; +#if FMT_HAS_BUILTIN(__builtin_assume) && !FMT_ICC_VERSION + __builtin_assume(condition); +#elif FMT_GCC_VERSION + if (!condition) __builtin_unreachable(); #endif +} // Attempts to reserve space for n extra characters in the output range. // Returns a pointer to the reserved range or a reference to it. -template ::value)> +template ::value&& + is_contiguous::value)> #if FMT_CLANG_VERSION >= 307 && !FMT_ICC_VERSION __attribute__((no_sanitize("undefined"))) #endif -inline auto -reserve(std::back_insert_iterator it, size_t n) - -> checked_ptr { - Container& c = get_container(it); - size_t size = c.size(); - c.resize(size + n); - return make_checked(get_data(c) + size, n); +FMT_CONSTEXPR20 inline auto +reserve(OutputIt it, size_t n) -> typename OutputIt::value_type* { + auto& c = get_container(it); + size_t size = c.size(); + c.resize(size + n); + return &c[size]; } template -inline auto reserve(buffer_appender it, size_t n) -> buffer_appender { - buffer& buf = get_container(it); - buf.try_reserve(buf.size() + n); - return it; +FMT_CONSTEXPR20 inline auto reserve(basic_appender it, size_t n) + -> basic_appender { + buffer& buf = get_container(it); + buf.try_reserve(buf.size() + n); + return it; } template constexpr auto reserve(Iterator& it, size_t) -> Iterator& { - return it; + return it; } template -using reserve_iterator = remove_reference_t(), 0))>; +using reserve_iterator = + remove_reference_t(), 0))>; template constexpr auto to_pointer(OutputIt, size_t) -> T* { - return nullptr; + return nullptr; } template -auto to_pointer(buffer_appender it, size_t n) -> T* { - buffer& buf = get_container(it); - auto size = buf.size(); - if (buf.capacity() < size + n) return nullptr; - buf.try_resize(size + n); - return buf.data() + size; -} - -template ::value)> -inline auto base_iterator(std::back_insert_iterator& it, - checked_ptr) - -> std::back_insert_iterator { - return it; +FMT_CONSTEXPR20 auto to_pointer(basic_appender it, size_t n) -> T* { + buffer& buf = get_container(it); + buf.try_reserve(buf.size() + n); + auto size = buf.size(); + if (buf.capacity() < size + n) return nullptr; + buf.try_resize(size + n); + return buf.data() + size; +} + +template ::value&& + is_contiguous::value)> +inline auto base_iterator(OutputIt it, + typename OutputIt::container_type::value_type*) + -> OutputIt { + return it; } template constexpr auto base_iterator(Iterator, Iterator it) -> Iterator { - return it; + return it; } // is spectacularly slow to compile in C++20 so use a simple fill_n // instead (#1998). template -FMT_CONSTEXPR auto fill_n(OutputIt out, Size count, const T& value) -> OutputIt { - for (Size i = 0; i < count; ++i) *out++ = value; - return out; +FMT_CONSTEXPR auto fill_n(OutputIt out, Size count, const T& value) + -> OutputIt { + for (Size i = 0; i < count; ++i) *out++ = value; + return out; } template FMT_CONSTEXPR20 auto fill_n(T* out, Size count, char value) -> T* { - if (is_constant_evaluated()) { - return fill_n(out, count, value); - } - std::memset(out, value, to_unsigned(count)); - return out + count; + if (is_constant_evaluated()) return fill_n(out, count, value); + std::memset(out, value, to_unsigned(count)); + return out + count; } -#ifdef __cpp_char8_t -using char8_type = char8_t; -#else -enum char8_type : unsigned char {}; -#endif - template -FMT_CONSTEXPR FMT_NOINLINE auto copy_str_noinline(InputIt begin, InputIt end, OutputIt out) - -> OutputIt { - return copy_str(begin, end, out); +FMT_CONSTEXPR FMT_NOINLINE auto copy_noinline(InputIt begin, InputIt end, + OutputIt out) -> OutputIt { + return copy(begin, end, out); } // A public domain branchless UTF-8 decoder by Christopher Wellons: @@ -611,409 +553,427 @@ FMT_CONSTEXPR FMT_NOINLINE auto copy_str_noinline(InputIt begin, InputIt end, Ou * occurs, this pointer will be a guess that depends on the particular * error, but it will always advance at least one byte. */ -FMT_CONSTEXPR inline auto utf8_decode(const char* s, uint32_t* c, int* e) -> const char* { - constexpr const int masks[] = {0x00, 0x7f, 0x1f, 0x0f, 0x07}; - constexpr const uint32_t mins[] = {4194304, 0, 128, 2048, 65536}; - constexpr const int shiftc[] = {0, 18, 12, 6, 0}; - constexpr const int shifte[] = {0, 6, 4, 2, 0}; - - int len = code_point_length_impl(*s); - // Compute the pointer to the next character early so that the next - // iteration can start working on the next character. Neither Clang - // nor GCC figure out this reordering on their own. - const char* next = s + len + !len; - - using uchar = unsigned char; - - // Assume a four-byte character and load four bytes. Unused bits are - // shifted out. - *c = uint32_t(uchar(s[0]) & masks[len]) << 18; - *c |= uint32_t(uchar(s[1]) & 0x3f) << 12; - *c |= uint32_t(uchar(s[2]) & 0x3f) << 6; - *c |= uint32_t(uchar(s[3]) & 0x3f) << 0; - *c >>= shiftc[len]; - - // Accumulate the various error conditions. - *e = (*c < mins[len]) << 6; // non-canonical encoding - *e |= ((*c >> 11) == 0x1b) << 7; // surrogate half? - *e |= (*c > 0x10FFFF) << 8; // out of range? - *e |= (uchar(s[1]) & 0xc0) >> 2; - *e |= (uchar(s[2]) & 0xc0) >> 4; - *e |= uchar(s[3]) >> 6; - *e ^= 0x2a; // top two bits of each tail byte correct? - *e >>= shifte[len]; - - return next; -} - -constexpr uint32_t invalid_code_point = ~uint32_t(); +FMT_CONSTEXPR inline auto utf8_decode(const char* s, uint32_t* c, int* e) + -> const char* { + constexpr const int masks[] = {0x00, 0x7f, 0x1f, 0x0f, 0x07}; + constexpr const uint32_t mins[] = {4194304, 0, 128, 2048, 65536}; + constexpr const int shiftc[] = {0, 18, 12, 6, 0}; + constexpr const int shifte[] = {0, 6, 4, 2, 0}; + + int len = "\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0\0\0\2\2\2\2\3\3\4" + [static_cast(*s) >> 3]; + // Compute the pointer to the next character early so that the next + // iteration can start working on the next character. Neither Clang + // nor GCC figure out this reordering on their own. + const char* next = s + len + !len; + + using uchar = unsigned char; + + // Assume a four-byte character and load four bytes. Unused bits are + // shifted out. + *c = uint32_t(uchar(s[0]) & masks[len]) << 18; + *c |= uint32_t(uchar(s[1]) & 0x3f) << 12; + *c |= uint32_t(uchar(s[2]) & 0x3f) << 6; + *c |= uint32_t(uchar(s[3]) & 0x3f) << 0; + *c >>= shiftc[len]; + + // Accumulate the various error conditions. + *e = (*c < mins[len]) << 6; // non-canonical encoding + *e |= ((*c >> 11) == 0x1b) << 7; // surrogate half? + *e |= (*c > 0x10FFFF) << 8; // out of range? + *e |= (uchar(s[1]) & 0xc0) >> 2; + *e |= (uchar(s[2]) & 0xc0) >> 4; + *e |= uchar(s[3]) >> 6; + *e ^= 0x2a; // top two bits of each tail byte correct? + *e >>= shifte[len]; + + return next; +} + +constexpr FMT_INLINE_VARIABLE uint32_t invalid_code_point = ~uint32_t(); // Invokes f(cp, sv) for every code point cp in s with sv being the string view // corresponding to the code point. cp is invalid_code_point on error. template FMT_CONSTEXPR void for_each_codepoint(string_view s, F f) { - auto decode = [f](const char* buf_ptr, const char* ptr) { - auto cp = uint32_t(); - auto error = 0; - auto end = utf8_decode(buf_ptr, &cp, &error); - bool result = f(error ? invalid_code_point : cp, - string_view(ptr, error ? 1 : to_unsigned(end - buf_ptr))); - return result ? (error ? buf_ptr + 1 : end) : nullptr; - }; - auto p = s.data(); - const size_t block_size = 4; // utf8_decode always reads blocks of 4 chars. - if (s.size() >= block_size) { - for (auto end = p + s.size() - block_size + 1; p < end;) { - p = decode(p, p); - if (!p) return; - } - } - if (auto num_chars_left = s.data() + s.size() - p) { - char buf[2 * block_size - 1] = {}; - copy_str(p, p + num_chars_left, buf); - const char* buf_ptr = buf; - do { - auto end = decode(buf_ptr, p); - if (!end) return; - p += end - buf_ptr; - buf_ptr = end; - } while (buf_ptr - buf < num_chars_left); - } + auto decode = [f](const char* buf_ptr, const char* ptr) { + auto cp = uint32_t(); + auto error = 0; + auto end = utf8_decode(buf_ptr, &cp, &error); + bool result = f(error ? invalid_code_point : cp, + string_view(ptr, error ? 1 : to_unsigned(end - buf_ptr))); + return result ? (error ? buf_ptr + 1 : end) : nullptr; + }; + + auto p = s.data(); + const size_t block_size = 4; // utf8_decode always reads blocks of 4 chars. + if (s.size() >= block_size) { + for (auto end = p + s.size() - block_size + 1; p < end;) { + p = decode(p, p); + if (!p) return; + } + } + auto num_chars_left = to_unsigned(s.data() + s.size() - p); + if (num_chars_left == 0) return; + + // Suppress bogus -Wstringop-overflow. + if (FMT_GCC_VERSION) num_chars_left &= 3; + char buf[2 * block_size - 1] = {}; + copy(p, p + num_chars_left, buf); + const char* buf_ptr = buf; + do { + auto end = decode(buf_ptr, p); + if (!end) return; + p += end - buf_ptr; + buf_ptr = end; + } while (buf_ptr < buf + num_chars_left); } template inline auto compute_width(basic_string_view s) -> size_t { - return s.size(); + return s.size(); } // Computes approximate display width of a UTF-8 string. -FMT_CONSTEXPR inline size_t compute_width(string_view s) { - size_t num_code_points = 0; - // It is not a lambda for compatibility with C++14. - struct count_code_points { - size_t* count; - FMT_CONSTEXPR auto operator()(uint32_t cp, string_view) const -> bool { - *count += detail::to_unsigned( - 1 + - (cp >= 0x1100 && (cp <= 0x115f || // Hangul Jamo init. consonants - cp == 0x2329 || // LEFT-POINTING ANGLE BRACKET - cp == 0x232a || // RIGHT-POINTING ANGLE BRACKET - // CJK ... Yi except IDEOGRAPHIC HALF FILL SPACE: - (cp >= 0x2e80 && cp <= 0xa4cf && cp != 0x303f) || - (cp >= 0xac00 && cp <= 0xd7a3) || // Hangul Syllables - (cp >= 0xf900 && cp <= 0xfaff) || // CJK Compatibility Ideographs - (cp >= 0xfe10 && cp <= 0xfe19) || // Vertical Forms - (cp >= 0xfe30 && cp <= 0xfe6f) || // CJK Compatibility Forms - (cp >= 0xff00 && cp <= 0xff60) || // Fullwidth Forms - (cp >= 0xffe0 && cp <= 0xffe6) || // Fullwidth Forms - (cp >= 0x20000 && cp <= 0x2fffd) || // CJK - (cp >= 0x30000 && cp <= 0x3fffd) || - // Miscellaneous Symbols and Pictographs + Emoticons: - (cp >= 0x1f300 && cp <= 0x1f64f) || - // Supplemental Symbols and Pictographs: - (cp >= 0x1f900 && cp <= 0x1f9ff)))); - return true; - } - }; - for_each_codepoint(s, count_code_points{&num_code_points}); - return num_code_points; -} - -inline auto compute_width(basic_string_view s) -> size_t { - return compute_width(string_view(reinterpret_cast(s.data()), s.size())); +FMT_CONSTEXPR inline auto compute_width(string_view s) -> size_t { + size_t num_code_points = 0; + // It is not a lambda for compatibility with C++14. + struct count_code_points { + size_t* count; + FMT_CONSTEXPR auto operator()(uint32_t cp, string_view) const -> bool { + *count += to_unsigned( + 1 + + (cp >= 0x1100 && + (cp <= 0x115f || // Hangul Jamo init. consonants + cp == 0x2329 || // LEFT-POINTING ANGLE BRACKET + cp == 0x232a || // RIGHT-POINTING ANGLE BRACKET + // CJK ... Yi except IDEOGRAPHIC HALF FILL SPACE: + (cp >= 0x2e80 && cp <= 0xa4cf && cp != 0x303f) || + (cp >= 0xac00 && cp <= 0xd7a3) || // Hangul Syllables + (cp >= 0xf900 && cp <= 0xfaff) || // CJK Compatibility Ideographs + (cp >= 0xfe10 && cp <= 0xfe19) || // Vertical Forms + (cp >= 0xfe30 && cp <= 0xfe6f) || // CJK Compatibility Forms + (cp >= 0xff00 && cp <= 0xff60) || // Fullwidth Forms + (cp >= 0xffe0 && cp <= 0xffe6) || // Fullwidth Forms + (cp >= 0x20000 && cp <= 0x2fffd) || // CJK + (cp >= 0x30000 && cp <= 0x3fffd) || + // Miscellaneous Symbols and Pictographs + Emoticons: + (cp >= 0x1f300 && cp <= 0x1f64f) || + // Supplemental Symbols and Pictographs: + (cp >= 0x1f900 && cp <= 0x1f9ff)))); + return true; + } + }; + // We could avoid branches by using utf8_decode directly. + for_each_codepoint(s, count_code_points{&num_code_points}); + return num_code_points; } template inline auto code_point_index(basic_string_view s, size_t n) -> size_t { - size_t size = s.size(); - return n < size ? n : size; + return min_of(n, s.size()); } // Calculates the index of the nth code point in a UTF-8 string. inline auto code_point_index(string_view s, size_t n) -> size_t { - const char* data = s.data(); - size_t num_code_points = 0; - for (size_t i = 0, size = s.size(); i != size; ++i) { - if ((data[i] & 0xc0) != 0x80 && ++num_code_points > n) return i; - } - return s.size(); + size_t result = s.size(); + const char* begin = s.begin(); + for_each_codepoint(s, [begin, &n, &result](uint32_t, string_view sv) { + if (n != 0) { + --n; + return true; + } + result = to_unsigned(sv.begin() - begin); + return false; + }); + return result; } -inline auto code_point_index(basic_string_view s, size_t n) -> size_t { - return code_point_index(string_view(reinterpret_cast(s.data()), s.size()), n); -} +template struct is_integral : std::is_integral {}; +template <> struct is_integral : std::true_type {}; +template <> struct is_integral : std::true_type {}; + +template +using is_signed = + std::integral_constant::is_signed || + std::is_same::value>; -#ifndef FMT_USE_FLOAT128 - #ifdef __SIZEOF_FLOAT128__ - #define FMT_USE_FLOAT128 1 - #else - #define FMT_USE_FLOAT128 0 - #endif +template +using is_integer = + bool_constant::value && !std::is_same::value && + !std::is_same::value && + !std::is_same::value>; + +#if defined(FMT_USE_FLOAT128) +// Use the provided definition. +#elif FMT_CLANG_VERSION >= 309 && FMT_HAS_INCLUDE() +# define FMT_USE_FLOAT128 1 +#elif FMT_GCC_VERSION && defined(_GLIBCXX_USE_FLOAT128) && \ + !defined(__STRICT_ANSI__) +# define FMT_USE_FLOAT128 1 +#else +# define FMT_USE_FLOAT128 0 #endif #if FMT_USE_FLOAT128 using float128 = __float128; #else -using float128 = void; +struct float128 {}; #endif -template -using is_float128 = std::is_same; -template -using is_floating_point = bool_constant::value || is_float128::value>; +template using is_float128 = std::is_same; -template ::value> -struct is_fast_float - : bool_constant::is_iec559 && sizeof(T) <= sizeof(double)> {}; -template -struct is_fast_float : std::false_type {}; +template struct is_floating_point : std::is_floating_point {}; +template <> struct is_floating_point : std::true_type {}; + +template ::value> +struct is_fast_float : bool_constant::is_iec559 && + sizeof(T) <= sizeof(double)> {}; +template struct is_fast_float : std::false_type {}; template using is_double_double = bool_constant::digits == 106>; #ifndef FMT_USE_FULL_CACHE_DRAGONBOX - #define FMT_USE_FULL_CACHE_DRAGONBOX 0 +# define FMT_USE_FULL_CACHE_DRAGONBOX 0 #endif -template -template -void buffer::append(const U* begin, const U* end) { - while (begin != end) { - auto count = to_unsigned(end - begin); - try_reserve(size_ + count); - auto free_cap = capacity_ - size_; - if (free_cap < count) count = free_cap; - std::uninitialized_copy_n(begin, count, make_checked(ptr_ + size_, count)); - size_ += count; - begin += count; - } -} +// An allocator that uses malloc/free to allow removing dependency on the C++ +// standard libary runtime. +template struct allocator { + using value_type = T; + + T* allocate(size_t n) { + FMT_ASSERT(n <= max_value() / sizeof(T), ""); + T* p = static_cast(malloc(n * sizeof(T))); + if (!p) FMT_THROW(std::bad_alloc()); + return p; + } + + void deallocate(T* p, size_t) { free(p); } +}; -template -struct is_locale : std::false_type {}; -template -struct is_locale> : std::true_type {}; } // namespace detail -FMT_MODULE_EXPORT_BEGIN +FMT_BEGIN_EXPORT // The number of characters to store in the basic_memory_buffer object itself // to avoid dynamic memory allocation. enum { inline_buffer_size = 500 }; /** - \rst - A dynamically growing memory buffer for trivially copyable/constructible types - with the first ``SIZE`` elements stored in the object itself. - - You can use the ``memory_buffer`` type alias for ``char`` instead. - - **Example**:: - - auto out = fmt::memory_buffer(); - format_to(std::back_inserter(out), "The answer is {}.", 42); - - This will append the following output to the ``out`` object: - - .. code-block:: none - - The answer is 42. - - The output can be converted to an ``std::string`` with ``to_string(out)``. - \endrst + * A dynamically growing memory buffer for trivially copyable/constructible + * types with the first `SIZE` elements stored in the object itself. Most + * commonly used via the `memory_buffer` alias for `char`. + * + * **Example**: + * + * auto out = fmt::memory_buffer(); + * fmt::format_to(std::back_inserter(out), "The answer is {}.", 42); + * + * This will append "The answer is 42." to `out`. The buffer content can be + * converted to `std::string` with `to_string(out)`. */ -template > -class basic_memory_buffer final : public detail::buffer { -private: - T store_[SIZE]; - - // Don't inherit from Allocator avoid generating type_info for it. - Allocator alloc_; - - // Deallocate memory allocated by the buffer. - FMT_CONSTEXPR20 void deallocate() { - T* data = this->data(); - if (data != store_) alloc_.deallocate(data, this->capacity()); - } - -protected: - FMT_CONSTEXPR20 void grow(size_t size) override; - -public: - using value_type = T; - using const_reference = const T&; - - FMT_CONSTEXPR20 explicit basic_memory_buffer(const Allocator& alloc = Allocator()) - : alloc_(alloc) { - this->set(store_, SIZE); - if (detail::is_constant_evaluated()) detail::fill_n(store_, SIZE, T()); - } - FMT_CONSTEXPR20 ~basic_memory_buffer() { deallocate(); } - -private: - // Move data from other to this buffer. - FMT_CONSTEXPR20 void move(basic_memory_buffer& other) { - alloc_ = std::move(other.alloc_); - T* data = other.data(); - size_t size = other.size(), capacity = other.capacity(); - if (data == other.store_) { - this->set(store_, capacity); - detail::copy_str(other.store_, other.store_ + size, - detail::make_checked(store_, capacity)); - } else { - this->set(data, capacity); - // Set pointer to the inline array so that delete is not called - // when deallocating. - other.set(other.store_, 0); - other.clear(); - } - this->resize(size); - } - -public: - /** - \rst - Constructs a :class:`fmt::basic_memory_buffer` object moving the content - of the other object to it. - \endrst - */ - FMT_CONSTEXPR20 basic_memory_buffer(basic_memory_buffer&& other) noexcept { move(other); } - - /** - \rst - Moves the content of the other ``basic_memory_buffer`` object to this one. - \endrst - */ - auto operator=(basic_memory_buffer&& other) noexcept -> basic_memory_buffer& { - FMT_ASSERT(this != &other, ""); - deallocate(); - move(other); - return *this; - } - - // Returns a copy of the allocator associated with this buffer. - auto get_allocator() const -> Allocator { return alloc_; } - - /** - Resizes the buffer to contain *count* elements. If T is a POD type new - elements may not be initialized. - */ - FMT_CONSTEXPR20 void resize(size_t count) { this->try_resize(count); } - - /** Increases the buffer capacity to *new_capacity*. */ - void reserve(size_t new_capacity) { this->try_reserve(new_capacity); } - - // Directly append data into the buffer - using detail::buffer::append; - template - void append(const ContiguousRange& range) { - append(range.data(), range.data() + range.size()); - } -}; - -template -FMT_CONSTEXPR20 void basic_memory_buffer::grow(size_t size) { +template > +class basic_memory_buffer : public detail::buffer { + private: + T store_[SIZE]; + + // Don't inherit from Allocator to avoid generating type_info for it. + FMT_NO_UNIQUE_ADDRESS Allocator alloc_; + + // Deallocate memory allocated by the buffer. + FMT_CONSTEXPR20 void deallocate() { + T* data = this->data(); + if (data != store_) alloc_.deallocate(data, this->capacity()); + } + + static FMT_CONSTEXPR20 void grow(detail::buffer& buf, size_t size) { detail::abort_fuzzing_if(size > 5000); - const size_t max_size = std::allocator_traits::max_size(alloc_); - size_t old_capacity = this->capacity(); + auto& self = static_cast(buf); + const size_t max_size = + std::allocator_traits::max_size(self.alloc_); + size_t old_capacity = buf.capacity(); size_t new_capacity = old_capacity + old_capacity / 2; if (size > new_capacity) - new_capacity = size; + new_capacity = size; else if (new_capacity > max_size) - new_capacity = size > max_size ? size : max_size; - T* old_data = this->data(); - T* new_data = std::allocator_traits::allocate(alloc_, new_capacity); + new_capacity = max_of(size, max_size); + T* old_data = buf.data(); + T* new_data = self.alloc_.allocate(new_capacity); + // Suppress a bogus -Wstringop-overflow in gcc 13.1 (#3481). + detail::assume(buf.size() <= new_capacity); // The following code doesn't throw, so the raw pointer above doesn't leak. - std::uninitialized_copy(old_data, old_data + this->size(), - detail::make_checked(new_data, new_capacity)); - this->set(new_data, new_capacity); + memcpy(new_data, old_data, buf.size() * sizeof(T)); + self.set(new_data, new_capacity); // deallocate must not throw according to the standard, but even if it does, // the buffer already uses the new storage and will deallocate it in // destructor. - if (old_data != store_) alloc_.deallocate(old_data, old_capacity); -} + if (old_data != self.store_) self.alloc_.deallocate(old_data, old_capacity); + } + + public: + using value_type = T; + using const_reference = const T&; + + FMT_CONSTEXPR explicit basic_memory_buffer( + const Allocator& alloc = Allocator()) + : detail::buffer(grow), alloc_(alloc) { + this->set(store_, SIZE); + if (detail::is_constant_evaluated()) detail::fill_n(store_, SIZE, T()); + } + FMT_CONSTEXPR20 ~basic_memory_buffer() { deallocate(); } + + private: + // Move data from other to this buffer. + FMT_CONSTEXPR20 void move(basic_memory_buffer& other) { + alloc_ = std::move(other.alloc_); + T* data = other.data(); + size_t size = other.size(), capacity = other.capacity(); + if (data == other.store_) { + this->set(store_, capacity); + detail::copy(other.store_, other.store_ + size, store_); + } else { + this->set(data, capacity); + // Set pointer to the inline array so that delete is not called + // when deallocating. + other.set(other.store_, 0); + other.clear(); + } + this->resize(size); + } + + public: + /// Constructs a `basic_memory_buffer` object moving the content of the other + /// object to it. + FMT_CONSTEXPR20 basic_memory_buffer(basic_memory_buffer&& other) noexcept + : detail::buffer(grow) { + move(other); + } + + /// Moves the content of the other `basic_memory_buffer` object to this one. + auto operator=(basic_memory_buffer&& other) noexcept -> basic_memory_buffer& { + FMT_ASSERT(this != &other, ""); + deallocate(); + move(other); + return *this; + } + + // Returns a copy of the allocator associated with this buffer. + auto get_allocator() const -> Allocator { return alloc_; } + + /// Resizes the buffer to contain `count` elements. If T is a POD type new + /// elements may not be initialized. + FMT_CONSTEXPR void resize(size_t count) { this->try_resize(count); } + + /// Increases the buffer capacity to `new_capacity`. + void reserve(size_t new_capacity) { this->try_reserve(new_capacity); } + + using detail::buffer::append; + template + FMT_CONSTEXPR20 void append(const ContiguousRange& range) { + append(range.data(), range.data() + range.size()); + } +}; using memory_buffer = basic_memory_buffer; +template +FMT_NODISCARD auto to_string(const basic_memory_buffer& buf) + -> std::string { + auto size = buf.size(); + detail::assume(size < std::string().max_size()); + return {buf.data(), size}; +} + +// A writer to a buffered stream. It doesn't own the underlying stream. +class writer { + private: + detail::buffer* buf_; + + // We cannot create a file buffer in advance because any write to a FILE may + // invalidate it. + FILE* file_; + + public: + inline writer(FILE* f) : buf_(nullptr), file_(f) {} + inline writer(detail::buffer& buf) : buf_(&buf) {} + + /// Formats `args` according to specifications in `fmt` and writes the + /// output to the file. + template void print(format_string fmt, T&&... args) { + if (buf_) + fmt::format_to(appender(*buf_), fmt, std::forward(args)...); + else + fmt::print(file_, fmt, std::forward(args)...); + } +}; + +class string_buffer { + private: + std::string str_; + detail::container_buffer buf_; + + public: + inline string_buffer() : buf_(str_) {} + + inline operator writer() { return buf_; } + inline std::string& str() { return str_; } +}; + template -struct is_contiguous> : std::true_type {}; +struct is_contiguous> : std::true_type { +}; -namespace detail { -#ifdef _WIN32 -FMT_API bool write_console(std::FILE* f, string_view text); -#endif -FMT_API void print(std::FILE*, string_view); -} // namespace detail +// Suppress a misleading warning in older versions of clang. +FMT_PRAGMA_CLANG(diagnostic ignored "-Wweak-vtables") -/** A formatting error such as invalid format string. */ -FMT_CLASS_API -class FMT_API format_error : public std::runtime_error { -public: - explicit format_error(const char* message) - : std::runtime_error(message) {} - explicit format_error(const std::string& message) - : std::runtime_error(message) {} - format_error(const format_error&) = default; - format_error& operator=(const format_error&) = default; - format_error(format_error&&) = default; - format_error& operator=(format_error&&) = default; - ~format_error() noexcept override FMT_MSC_DEFAULT; +/// An error reported from a formatting function. +class FMT_SO_VISIBILITY("default") format_error : public std::runtime_error { + public: + using std::runtime_error::runtime_error; }; -namespace detail_exported { -#if FMT_USE_NONTYPE_TEMPLATE_ARGS -template -struct fixed_string { - constexpr fixed_string(const Char (&str)[N]) { - detail::copy_str(static_cast(str), str + N, data); - } - Char data[N] = {}; +class loc_value; + +FMT_END_EXPORT +namespace detail { +FMT_API auto write_console(int fd, string_view text) -> bool; +FMT_API void print(FILE*, string_view); +} // namespace detail + +namespace detail { +template struct fixed_string { + FMT_CONSTEXPR20 fixed_string(const Char (&s)[N]) { + detail::copy(static_cast(s), s + N, + data); + } + Char data[N] = {}; }; -#endif // Converts a compile-time string to basic_string_view. -template -constexpr auto compile_string_to_view(const Char (&s)[N]) -> basic_string_view { - // Remove trailing NUL character if needed. Won't be present if this is used - // with a raw character array (i.e. not defined as a string). - return {s, N - (std::char_traits::to_int_type(s[N - 1]) == 0 ? 1 : 0)}; +FMT_EXPORT template +constexpr auto compile_string_to_view(const Char (&s)[N]) + -> basic_string_view { + // Remove trailing NUL character if needed. Won't be present if this is used + // with a raw character array (i.e. not defined as a string). + return {s, N - (std::char_traits::to_int_type(s[N - 1]) == 0 ? 1 : 0)}; } -template -constexpr auto compile_string_to_view(detail::std_string_view s) -> basic_string_view { - return {s.data(), s.size()}; +FMT_EXPORT template +constexpr auto compile_string_to_view(basic_string_view s) + -> basic_string_view { + return s; } -} // namespace detail_exported - -FMT_BEGIN_DETAIL_NAMESPACE - -template -struct is_integral : std::is_integral {}; -template <> -struct is_integral : std::true_type {}; -template <> -struct is_integral : std::true_type {}; - -template -using is_signed = - std::integral_constant::is_signed || std::is_same::value>; // Returns true if value is negative, false otherwise. // Same as `value < 0` but doesn't produce warnings if T is an unsigned type. template ::value)> constexpr auto is_negative(T value) -> bool { - return value < 0; + return value < 0; } template ::value)> constexpr auto is_negative(T) -> bool { - return false; -} - -template -FMT_CONSTEXPR auto is_supported_floating_point(T) -> bool { - if (std::is_same()) return FMT_USE_FLOAT; - if (std::is_same()) return FMT_USE_DOUBLE; - if (std::is_same()) return FMT_USE_LONG_DOUBLE; - return true; + return false; } // Smallest of uint32_t, uint64_t, uint128_t that is large enough to @@ -1026,64 +986,68 @@ using uint32_or_64_or_128_t = template using uint64_or_128_t = conditional_t() <= 64, uint64_t, uint128_t>; -#define FMT_POWERS_OF_10(factor) \ - factor * 10, (factor)*100, (factor)*1000, (factor)*10000, (factor)*100000, (factor)*1000000, \ - (factor)*10000000, (factor)*100000000, (factor)*1000000000 +#define FMT_POWERS_OF_10(factor) \ + factor * 10, (factor) * 100, (factor) * 1000, (factor) * 10000, \ + (factor) * 100000, (factor) * 1000000, (factor) * 10000000, \ + (factor) * 100000000, (factor) * 1000000000 // Converts value in the range [0, 100) to a string. -constexpr const char* digits2(size_t value) { - // GCC generates slightly better code when value is pointer-size. - return &"0001020304050607080910111213141516171819" - "2021222324252627282930313233343536373839" - "4041424344454647484950515253545556575859" - "6061626364656667686970717273747576777879" - "8081828384858687888990919293949596979899"[value * 2]; -} - -// Sign is a template parameter to workaround a bug in gcc 4.8. -template -constexpr Char sign(Sign s) { -#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 604 - static_assert(std::is_same::value, ""); -#endif - return static_cast("\0-+ "[s]); -} - -template -FMT_CONSTEXPR auto count_digits_fallback(T n) -> int { - int count = 1; - for (;;) { - // Integer division is slow so do it for a group of four digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - if (n < 10) return count; - if (n < 100) return count + 1; - if (n < 1000) return count + 2; - if (n < 10000) return count + 3; - n /= 10000u; - count += 4; - } +// GCC generates slightly better code when value is pointer-size. +inline auto digits2(size_t value) -> const char* { + // Align data since unaligned access may be slower when crossing a + // hardware-specific boundary. + alignas(2) static const char data[] = + "0001020304050607080910111213141516171819" + "2021222324252627282930313233343536373839" + "4041424344454647484950515253545556575859" + "6061626364656667686970717273747576777879" + "8081828384858687888990919293949596979899"; + return &data[value * 2]; +} + +template constexpr auto getsign(sign s) -> Char { + return static_cast(((' ' << 24) | ('+' << 16) | ('-' << 8)) >> + (static_cast(s) * 8)); +} + +template FMT_CONSTEXPR auto count_digits_fallback(T n) -> int { + int count = 1; + for (;;) { + // Integer division is slow so do it for a group of four digits instead + // of for every digit. The idea comes from the talk by Alexandrescu + // "Three Optimization Tips for C++". See speed-test for a comparison. + if (n < 10) return count; + if (n < 100) return count + 1; + if (n < 1000) return count + 2; + if (n < 10000) return count + 3; + n /= 10000u; + count += 4; + } } #if FMT_USE_INT128 -FMT_CONSTEXPR inline auto count_digits(uint128_opt n) -> int { return count_digits_fallback(n); } +FMT_CONSTEXPR inline auto count_digits(uint128_opt n) -> int { + return count_digits_fallback(n); +} #endif #ifdef FMT_BUILTIN_CLZLL // It is a separate function rather than a part of count_digits to workaround // the lack of static constexpr in constexpr functions. inline auto do_count_digits(uint64_t n) -> int { - // This has comparable performance to the version by Kendall Willets - // (https://github.com/fmtlib/format-benchmark/blob/master/digits10) - // but uses smaller tables. - // Maps bsr(n) to ceil(log10(pow(2, bsr(n) + 1) - 1)). - static constexpr uint8_t bsr2log10[] = { - 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, - 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, - 14, 14, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 19, 20}; - auto t = bsr2log10[FMT_BUILTIN_CLZLL(n | 1) ^ 63]; - static constexpr const uint64_t zero_or_powers_of_10[] = { - 0, 0, FMT_POWERS_OF_10(1U), FMT_POWERS_OF_10(1000000000ULL), 10000000000000000000ULL}; - return t - (n < zero_or_powers_of_10[t]); + // This has comparable performance to the version by Kendall Willets + // (https://github.com/fmtlib/format-benchmark/blob/master/digits10) + // but uses smaller tables. + // Maps bsr(n) to ceil(log10(pow(2, bsr(n) + 1) - 1)). + static constexpr uint8_t bsr2log10[] = { + 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, + 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, + 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 15, 15, + 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 19, 20}; + auto t = bsr2log10[FMT_BUILTIN_CLZLL(n | 1) ^ 63]; + static constexpr const uint64_t zero_or_powers_of_10[] = { + 0, 0, FMT_POWERS_OF_10(1U), FMT_POWERS_OF_10(1000000000ULL), + 10000000000000000000ULL}; + return t - (n < zero_or_powers_of_10[t]); } #endif @@ -1091,3111 +1055,3190 @@ inline auto do_count_digits(uint64_t n) -> int { // except for n == 0 in which case count_digits returns 1. FMT_CONSTEXPR20 inline auto count_digits(uint64_t n) -> int { #ifdef FMT_BUILTIN_CLZLL - if (!is_constant_evaluated()) { - return do_count_digits(n); - } + if (!is_constant_evaluated() && !FMT_OPTIMIZE_SIZE) return do_count_digits(n); #endif - return count_digits_fallback(n); + return count_digits_fallback(n); } // Counts the number of digits in n. BITS = log2(radix). template FMT_CONSTEXPR auto count_digits(UInt n) -> int { #ifdef FMT_BUILTIN_CLZ - if (!is_constant_evaluated() && num_bits() == 32) - return (FMT_BUILTIN_CLZ(static_cast(n) | 1) ^ 31) / BITS + 1; + if (!is_constant_evaluated() && num_bits() == 32) + return (FMT_BUILTIN_CLZ(static_cast(n) | 1) ^ 31) / BITS + 1; #endif - // Lambda avoids unreachable code warnings from NVHPC. - return [](UInt m) { - int num_digits = 0; - do { - ++num_digits; - } while ((m >>= BITS) != 0); - return num_digits; - }(n); + // Lambda avoids unreachable code warnings from NVHPC. + return [](UInt m) { + int num_digits = 0; + do { + ++num_digits; + } while ((m >>= BITS) != 0); + return num_digits; + }(n); } #ifdef FMT_BUILTIN_CLZ // It is a separate function rather than a part of count_digits to workaround // the lack of static constexpr in constexpr functions. FMT_INLINE auto do_count_digits(uint32_t n) -> int { - // An optimization by Kendall Willets from https://bit.ly/3uOIQrB. - // This increments the upper 32 bits (log10(T) - 1) when >= T is added. - #define FMT_INC(T) (((sizeof(#T) - 1ull) << 32) - T) - static constexpr uint64_t table[] = { - FMT_INC(0), FMT_INC(0), FMT_INC(0), // 8 - FMT_INC(10), FMT_INC(10), FMT_INC(10), // 64 - FMT_INC(100), FMT_INC(100), FMT_INC(100), // 512 - FMT_INC(1000), FMT_INC(1000), FMT_INC(1000), // 4096 - FMT_INC(10000), FMT_INC(10000), FMT_INC(10000), // 32k - FMT_INC(100000), FMT_INC(100000), FMT_INC(100000), // 256k - FMT_INC(1000000), FMT_INC(1000000), FMT_INC(1000000), // 2048k - FMT_INC(10000000), FMT_INC(10000000), FMT_INC(10000000), // 16M - FMT_INC(100000000), FMT_INC(100000000), FMT_INC(100000000), // 128M - FMT_INC(1000000000), FMT_INC(1000000000), FMT_INC(1000000000), // 1024M - FMT_INC(1000000000), FMT_INC(1000000000) // 4B - }; - auto inc = table[FMT_BUILTIN_CLZ(n | 1) ^ 31]; - return static_cast((n + inc) >> 32); +// An optimization by Kendall Willets from https://bit.ly/3uOIQrB. +// This increments the upper 32 bits (log10(T) - 1) when >= T is added. +# define FMT_INC(T) (((sizeof(#T) - 1ull) << 32) - T) + static constexpr uint64_t table[] = { + FMT_INC(0), FMT_INC(0), FMT_INC(0), // 8 + FMT_INC(10), FMT_INC(10), FMT_INC(10), // 64 + FMT_INC(100), FMT_INC(100), FMT_INC(100), // 512 + FMT_INC(1000), FMT_INC(1000), FMT_INC(1000), // 4096 + FMT_INC(10000), FMT_INC(10000), FMT_INC(10000), // 32k + FMT_INC(100000), FMT_INC(100000), FMT_INC(100000), // 256k + FMT_INC(1000000), FMT_INC(1000000), FMT_INC(1000000), // 2048k + FMT_INC(10000000), FMT_INC(10000000), FMT_INC(10000000), // 16M + FMT_INC(100000000), FMT_INC(100000000), FMT_INC(100000000), // 128M + FMT_INC(1000000000), FMT_INC(1000000000), FMT_INC(1000000000), // 1024M + FMT_INC(1000000000), FMT_INC(1000000000) // 4B + }; + auto inc = table[FMT_BUILTIN_CLZ(n | 1) ^ 31]; + return static_cast((n + inc) >> 32); } #endif // Optional version of count_digits for better performance on 32-bit platforms. FMT_CONSTEXPR20 inline auto count_digits(uint32_t n) -> int { #ifdef FMT_BUILTIN_CLZ - if (!is_constant_evaluated()) { - return do_count_digits(n); - } + if (!is_constant_evaluated() && !FMT_OPTIMIZE_SIZE) return do_count_digits(n); #endif - return count_digits_fallback(n); + return count_digits_fallback(n); } -template -constexpr auto digits10() noexcept -> int { - return std::numeric_limits::digits10; -} -template <> -constexpr auto digits10() noexcept -> int { - return 38; -} -template <> -constexpr auto digits10() noexcept -> int { - return 38; +template constexpr auto digits10() noexcept -> int { + return std::numeric_limits::digits10; } +template <> constexpr auto digits10() noexcept -> int { return 38; } +template <> constexpr auto digits10() noexcept -> int { return 38; } -template -struct thousands_sep_result { - std::string grouping; - Char thousands_sep; +template struct thousands_sep_result { + std::string grouping; + Char thousands_sep; }; template FMT_API auto thousands_sep_impl(locale_ref loc) -> thousands_sep_result; template inline auto thousands_sep(locale_ref loc) -> thousands_sep_result { - auto result = thousands_sep_impl(loc); - return {result.grouping, Char(result.thousands_sep)}; + auto result = thousands_sep_impl(loc); + return {result.grouping, Char(result.thousands_sep)}; } template <> inline auto thousands_sep(locale_ref loc) -> thousands_sep_result { - return thousands_sep_impl(loc); + return thousands_sep_impl(loc); } template FMT_API auto decimal_point_impl(locale_ref loc) -> Char; -template -inline auto decimal_point(locale_ref loc) -> Char { - return Char(decimal_point_impl(loc)); +template inline auto decimal_point(locale_ref loc) -> Char { + return Char(decimal_point_impl(loc)); } -template <> -inline auto decimal_point(locale_ref loc) -> wchar_t { - return decimal_point_impl(loc); +template <> inline auto decimal_point(locale_ref loc) -> wchar_t { + return decimal_point_impl(loc); } +#ifndef FMT_HEADER_ONLY +FMT_BEGIN_EXPORT +extern template FMT_API auto thousands_sep_impl(locale_ref) + -> thousands_sep_result; +extern template FMT_API auto thousands_sep_impl(locale_ref) + -> thousands_sep_result; +extern template FMT_API auto decimal_point_impl(locale_ref) -> char; +extern template FMT_API auto decimal_point_impl(locale_ref) -> wchar_t; +FMT_END_EXPORT +#endif // FMT_HEADER_ONLY + // Compares two characters for equality. -template -auto equal2(const Char* lhs, const char* rhs) -> bool { - return lhs[0] == Char(rhs[0]) && lhs[1] == Char(rhs[1]); +template auto equal2(const Char* lhs, const char* rhs) -> bool { + return lhs[0] == Char(rhs[0]) && lhs[1] == Char(rhs[1]); +} +inline auto equal2(const char* lhs, const char* rhs) -> bool { + return memcmp(lhs, rhs, 2) == 0; } -inline auto equal2(const char* lhs, const char* rhs) -> bool { return memcmp(lhs, rhs, 2) == 0; } -// Copies two characters from src to dst. +// Writes a two-digit value to out. template -FMT_CONSTEXPR20 FMT_INLINE void copy2(Char* dst, const char* src) { - if (!is_constant_evaluated() && sizeof(Char) == sizeof(char)) { - memcpy(dst, src, 2); - return; - } - *dst++ = static_cast(*src++); - *dst = static_cast(*src); +FMT_CONSTEXPR20 FMT_INLINE void write2digits(Char* out, size_t value) { + if (!is_constant_evaluated() && std::is_same::value && + !FMT_OPTIMIZE_SIZE) { + memcpy(out, digits2(value), 2); + return; + } + *out++ = static_cast('0' + value / 10); + *out = static_cast('0' + value % 10); +} + +// Formats a decimal unsigned integer value writing to out pointing to a buffer +// of specified size. The caller must ensure that the buffer is large enough. +template +FMT_CONSTEXPR20 auto do_format_decimal(Char* out, UInt value, int size) + -> Char* { + FMT_ASSERT(size >= count_digits(value), "invalid digit count"); + unsigned n = to_unsigned(size); + while (value >= 100) { + // Integer division is slow so do it for a group of two digits instead + // of for every digit. The idea comes from the talk by Alexandrescu + // "Three Optimization Tips for C++". See speed-test for a comparison. + n -= 2; + write2digits(out + n, static_cast(value % 100)); + value /= 100; + } + if (value >= 10) { + n -= 2; + write2digits(out + n, static_cast(value)); + } else { + out[--n] = static_cast('0' + value); + } + return out + n; } -template -struct format_decimal_result { - Iterator begin; - Iterator end; -}; - -// Formats a decimal unsigned integer value writing into out pointing to a -// buffer of specified size. The caller must ensure that the buffer is large -// enough. template -FMT_CONSTEXPR20 auto format_decimal(Char* out, UInt value, int size) - -> format_decimal_result { - FMT_ASSERT(size >= count_digits(value), "invalid digit count"); - out += size; - Char* end = out; - while (value >= 100) { - // Integer division is slow so do it for a group of two digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - out -= 2; - copy2(out, digits2(static_cast(value % 100))); - value /= 100; - } - if (value < 10) { - *--out = static_cast('0' + value); - return {out, end}; - } - out -= 2; - copy2(out, digits2(static_cast(value))); - return {out, end}; +FMT_CONSTEXPR FMT_INLINE auto format_decimal(Char* out, UInt value, + int num_digits) -> Char* { + do_format_decimal(out, value, num_digits); + return out + num_digits; } -template >::value)> -FMT_CONSTEXPR inline auto format_decimal(Iterator out, UInt value, int size) - -> format_decimal_result { - // Buffer is large enough to hold all digits (digits10 + 1). - Char buffer[digits10() + 1]; - auto end = format_decimal(buffer, value, size).end; - return {out, detail::copy_str_noinline(buffer, end, out)}; +template >::value)> +FMT_CONSTEXPR auto format_decimal(OutputIt out, UInt value, int num_digits) + -> OutputIt { + if (auto ptr = to_pointer(out, to_unsigned(num_digits))) { + do_format_decimal(ptr, value, num_digits); + return out; + } + // Buffer is large enough to hold all digits (digits10 + 1). + char buffer[digits10() + 1]; + if (is_constant_evaluated()) fill_n(buffer, sizeof(buffer), '\0'); + do_format_decimal(buffer, value, num_digits); + return copy_noinline(buffer, buffer + num_digits, out); } -template -FMT_CONSTEXPR auto format_uint(Char* buffer, UInt value, int num_digits, bool upper = false) - -> Char* { - buffer += num_digits; - Char* end = buffer; - do { - const char* digits = upper ? "0123456789ABCDEF" : "0123456789abcdef"; - unsigned digit = static_cast(value & ((1 << BASE_BITS) - 1)); - *--buffer = - static_cast(BASE_BITS < 4 ? static_cast('0' + digit) : digits[digit]); - } while ((value >>= BASE_BITS) != 0); - return end; -} - -template -inline auto format_uint(It out, UInt value, int num_digits, bool upper = false) -> It { - if (auto ptr = to_pointer(out, to_unsigned(num_digits))) { - format_uint(ptr, value, num_digits, upper); - return out; - } - // Buffer should be large enough to hold all digits (digits / BASE_BITS + 1). - char buffer[num_bits() / BASE_BITS + 1]; - format_uint(buffer, value, num_digits, upper); - return detail::copy_str_noinline(buffer, buffer + num_digits, out); -} +template +FMT_CONSTEXPR auto do_format_base2e(int base_bits, Char* out, UInt value, + int size, bool upper = false) -> Char* { + out += size; + do { + const char* digits = upper ? "0123456789ABCDEF" : "0123456789abcdef"; + unsigned digit = static_cast(value & ((1 << base_bits) - 1)); + *--out = static_cast(base_bits < 4 ? static_cast('0' + digit) + : digits[digit]); + } while ((value >>= base_bits) != 0); + return out; +} + +// Formats an unsigned integer in the power of two base (binary, octal, hex). +template +FMT_CONSTEXPR auto format_base2e(int base_bits, Char* out, UInt value, + int num_digits, bool upper = false) -> Char* { + do_format_base2e(base_bits, out, value, num_digits, upper); + return out + num_digits; +} + +template ::value)> +FMT_CONSTEXPR inline auto format_base2e(int base_bits, OutputIt out, UInt value, + int num_digits, bool upper = false) + -> OutputIt { + if (auto ptr = to_pointer(out, to_unsigned(num_digits))) { + format_base2e(base_bits, ptr, value, num_digits, upper); + return out; + } + // Make buffer large enough for any base. + char buffer[num_bits()]; + if (is_constant_evaluated()) fill_n(buffer, sizeof(buffer), '\0'); + format_base2e(base_bits, buffer, value, num_digits, upper); + return detail::copy_noinline(buffer, buffer + num_digits, out); +} // A converter from UTF-8 to UTF-16. class utf8_to_utf16 { -private: - basic_memory_buffer buffer_; - -public: - FMT_API explicit utf8_to_utf16(string_view s); - operator basic_string_view() const { return {&buffer_[0], size()}; } - auto size() const -> size_t { return buffer_.size() - 1; } - auto c_str() const -> const wchar_t* { return &buffer_[0]; } - auto str() const -> std::wstring { return {&buffer_[0], size()}; } + private: + basic_memory_buffer buffer_; + + public: + FMT_API explicit utf8_to_utf16(string_view s); + inline operator basic_string_view() const { + return {&buffer_[0], size()}; + } + inline auto size() const -> size_t { return buffer_.size() - 1; } + inline auto c_str() const -> const wchar_t* { return &buffer_[0]; } + inline auto str() const -> std::wstring { return {&buffer_[0], size()}; } +}; + +enum class to_utf8_error_policy { abort, replace }; + +// A converter from UTF-16/UTF-32 (host endian) to UTF-8. +template class to_utf8 { + private: + Buffer buffer_; + + public: + to_utf8() {} + explicit to_utf8(basic_string_view s, + to_utf8_error_policy policy = to_utf8_error_policy::abort) { + static_assert(sizeof(WChar) == 2 || sizeof(WChar) == 4, + "Expect utf16 or utf32"); + if (!convert(s, policy)) + FMT_THROW(std::runtime_error(sizeof(WChar) == 2 ? "invalid utf16" + : "invalid utf32")); + } + operator string_view() const { return string_view(&buffer_[0], size()); } + auto size() const -> size_t { return buffer_.size() - 1; } + auto c_str() const -> const char* { return &buffer_[0]; } + auto str() const -> std::string { return std::string(&buffer_[0], size()); } + + // Performs conversion returning a bool instead of throwing exception on + // conversion error. This method may still throw in case of memory allocation + // error. + auto convert(basic_string_view s, + to_utf8_error_policy policy = to_utf8_error_policy::abort) + -> bool { + if (!convert(buffer_, s, policy)) return false; + buffer_.push_back(0); + return true; + } + static auto convert(Buffer& buf, basic_string_view s, + to_utf8_error_policy policy = to_utf8_error_policy::abort) + -> bool { + for (auto p = s.begin(); p != s.end(); ++p) { + uint32_t c = static_cast(*p); + if (sizeof(WChar) == 2 && c >= 0xd800 && c <= 0xdfff) { + // Handle a surrogate pair. + ++p; + if (p == s.end() || (c & 0xfc00) != 0xd800 || (*p & 0xfc00) != 0xdc00) { + if (policy == to_utf8_error_policy::abort) return false; + buf.append(string_view("\xEF\xBF\xBD")); + --p; + continue; + } else { + c = (c << 10) + static_cast(*p) - 0x35fdc00; + } + } + if (c < 0x80) { + buf.push_back(static_cast(c)); + } else if (c < 0x800) { + buf.push_back(static_cast(0xc0 | (c >> 6))); + buf.push_back(static_cast(0x80 | (c & 0x3f))); + } else if ((c >= 0x800 && c <= 0xd7ff) || (c >= 0xe000 && c <= 0xffff)) { + buf.push_back(static_cast(0xe0 | (c >> 12))); + buf.push_back(static_cast(0x80 | ((c & 0xfff) >> 6))); + buf.push_back(static_cast(0x80 | (c & 0x3f))); + } else if (c >= 0x10000 && c <= 0x10ffff) { + buf.push_back(static_cast(0xf0 | (c >> 18))); + buf.push_back(static_cast(0x80 | ((c & 0x3ffff) >> 12))); + buf.push_back(static_cast(0x80 | ((c & 0xfff) >> 6))); + buf.push_back(static_cast(0x80 | (c & 0x3f))); + } else { + return false; + } + } + return true; + } }; +// Computes 128-bit result of multiplication of two 64-bit unsigned integers. +inline auto umul128(uint64_t x, uint64_t y) noexcept -> uint128_fallback { +#if FMT_USE_INT128 + auto p = static_cast(x) * static_cast(y); + return {static_cast(p >> 64), static_cast(p)}; +#elif defined(_MSC_VER) && defined(_M_X64) + auto hi = uint64_t(); + auto lo = _umul128(x, y, &hi); + return {hi, lo}; +#else + const uint64_t mask = static_cast(max_value()); + + uint64_t a = x >> 32; + uint64_t b = x & mask; + uint64_t c = y >> 32; + uint64_t d = y & mask; + + uint64_t ac = a * c; + uint64_t bc = b * c; + uint64_t ad = a * d; + uint64_t bd = b * d; + + uint64_t intermediate = (bd >> 32) + (ad & mask) + (bc & mask); + + return {ac + (intermediate >> 32) + (ad >> 32) + (bc >> 32), + (intermediate << 32) + (bd & mask)}; +#endif +} + namespace dragonbox { +// Computes floor(log10(pow(2, e))) for e in [-2620, 2620] using the method from +// https://fmt.dev/papers/Dragonbox.pdf#page=28, section 6.1. +inline auto floor_log10_pow2(int e) noexcept -> int { + FMT_ASSERT(e <= 2620 && e >= -2620, "too large exponent"); + static_assert((-1 >> 1) == -1, "right shift is not arithmetic"); + return (e * 315653) >> 20; +} -// Type-specific information that Dragonbox uses. -template -struct float_info; +inline auto floor_log2_pow10(int e) noexcept -> int { + FMT_ASSERT(e <= 1233 && e >= -1233, "too large exponent"); + return (e * 1741647) >> 19; +} -template <> -struct float_info { - using carrier_uint = uint32_t; - static const int exponent_bits = 8; - static const int kappa = 1; - static const int big_divisor = 100; - static const int small_divisor = 10; - static const int min_k = -31; - static const int max_k = 46; - static const int shorter_interval_tie_lower_threshold = -35; - static const int shorter_interval_tie_upper_threshold = -35; +// Computes upper 64 bits of multiplication of two 64-bit unsigned integers. +inline auto umul128_upper64(uint64_t x, uint64_t y) noexcept -> uint64_t { +#if FMT_USE_INT128 + auto p = static_cast(x) * static_cast(y); + return static_cast(p >> 64); +#elif defined(_MSC_VER) && defined(_M_X64) + return __umulh(x, y); +#else + return umul128(x, y).high(); +#endif +} + +// Computes upper 128 bits of multiplication of a 64-bit unsigned integer and a +// 128-bit unsigned integer. +inline auto umul192_upper128(uint64_t x, uint128_fallback y) noexcept + -> uint128_fallback { + uint128_fallback r = umul128(x, y.high()); + r += umul128_upper64(x, y.low()); + return r; +} + +FMT_API auto get_cached_power(int k) noexcept -> uint128_fallback; + +// Type-specific information that Dragonbox uses. +template struct float_info; + +template <> struct float_info { + using carrier_uint = uint32_t; + static const int exponent_bits = 8; + static const int kappa = 1; + static const int big_divisor = 100; + static const int small_divisor = 10; + static const int min_k = -31; + static const int max_k = 46; + static const int shorter_interval_tie_lower_threshold = -35; + static const int shorter_interval_tie_upper_threshold = -35; }; -template <> -struct float_info { - using carrier_uint = uint64_t; - static const int exponent_bits = 11; - static const int kappa = 2; - static const int big_divisor = 1000; - static const int small_divisor = 100; - static const int min_k = -292; - static const int max_k = 326; - static const int shorter_interval_tie_lower_threshold = -77; - static const int shorter_interval_tie_upper_threshold = -77; +template <> struct float_info { + using carrier_uint = uint64_t; + static const int exponent_bits = 11; + static const int kappa = 2; + static const int big_divisor = 1000; + static const int small_divisor = 100; + static const int min_k = -292; + static const int max_k = 341; + static const int shorter_interval_tie_lower_threshold = -77; + static const int shorter_interval_tie_upper_threshold = -77; }; // An 80- or 128-bit floating point number. template -struct float_info::digits == 64 || - std::numeric_limits::digits == 113 || is_float128::value>> { - using carrier_uint = detail::uint128_t; - static const int exponent_bits = 15; +struct float_info::digits == 64 || + std::numeric_limits::digits == 113 || + is_float128::value>> { + using carrier_uint = detail::uint128_t; + static const int exponent_bits = 15; }; // A double-double floating point number. template struct float_info::value>> { - using carrier_uint = detail::uint128_t; + using carrier_uint = detail::uint128_t; }; -template -struct decimal_fp { - using significand_type = typename float_info::carrier_uint; - significand_type significand; - int exponent; +template struct decimal_fp { + using significand_type = typename float_info::carrier_uint; + significand_type significand; + int exponent; }; -template -FMT_API auto to_decimal(T x) noexcept -> decimal_fp; +template FMT_API auto to_decimal(T x) noexcept -> decimal_fp; } // namespace dragonbox // Returns true iff Float has the implicit bit which is not stored. -template -constexpr bool has_implicit_bit() { - // An 80-bit FP number has a 64-bit significand an no implicit bit. - return std::numeric_limits::digits != 64; +template constexpr auto has_implicit_bit() -> bool { + // An 80-bit FP number has a 64-bit significand an no implicit bit. + return std::numeric_limits::digits != 64; } // Returns the number of significand bits stored in Float. The implicit bit is // not counted since it is not stored. -template -constexpr int num_significand_bits() { - // std::numeric_limits may not support __float128. - return is_float128() - ? 112 - : (std::numeric_limits::digits - (has_implicit_bit() ? 1 : 0)); +template constexpr auto num_significand_bits() -> int { + // std::numeric_limits may not support __float128. + return is_float128() ? 112 + : (std::numeric_limits::digits - + (has_implicit_bit() ? 1 : 0)); } template -constexpr auto exponent_mask() -> typename dragonbox::float_info::carrier_uint { - using uint = typename dragonbox::float_info::carrier_uint; - return ((uint(1) << dragonbox::float_info::exponent_bits) - 1) - << num_significand_bits(); +constexpr auto exponent_mask() -> + typename dragonbox::float_info::carrier_uint { + using float_uint = typename dragonbox::float_info::carrier_uint; + return ((float_uint(1) << dragonbox::float_info::exponent_bits) - 1) + << num_significand_bits(); } -template -constexpr auto exponent_bias() -> int { - // std::numeric_limits may not support __float128. - return is_float128() ? 16383 : std::numeric_limits::max_exponent - 1; +template constexpr auto exponent_bias() -> int { + // std::numeric_limits may not support __float128. + return is_float128() ? 16383 + : std::numeric_limits::max_exponent - 1; } // Writes the exponent exp in the form "[+-]d{2,3}" to buffer. -template -FMT_CONSTEXPR auto write_exponent(int exp, It it) -> It { - FMT_ASSERT(-10000 < exp && exp < 10000, "exponent out of range"); - if (exp < 0) { - *it++ = static_cast('-'); - exp = -exp; - } else { - *it++ = static_cast('+'); - } - if (exp >= 100) { - const char* top = digits2(to_unsigned(exp / 100)); - if (exp >= 1000) *it++ = static_cast(top[0]); - *it++ = static_cast(top[1]); - exp %= 100; - } - const char* d = digits2(to_unsigned(exp)); - *it++ = static_cast(d[0]); - *it++ = static_cast(d[1]); - return it; +template +FMT_CONSTEXPR auto write_exponent(int exp, OutputIt out) -> OutputIt { + FMT_ASSERT(-10000 < exp && exp < 10000, "exponent out of range"); + if (exp < 0) { + *out++ = static_cast('-'); + exp = -exp; + } else { + *out++ = static_cast('+'); + } + auto uexp = static_cast(exp); + if (is_constant_evaluated()) { + if (uexp < 10) *out++ = '0'; + return format_decimal(out, uexp, count_digits(uexp)); + } + if (uexp >= 100u) { + const char* top = digits2(uexp / 100); + if (uexp >= 1000u) *out++ = static_cast(top[0]); + *out++ = static_cast(top[1]); + uexp %= 100; + } + const char* d = digits2(uexp); + *out++ = static_cast(d[0]); + *out++ = static_cast(d[1]); + return out; } // A floating-point number f * pow(2, e) where F is an unsigned type. -template -struct basic_fp { - F f; - int e; - - static constexpr const int num_significand_bits = - static_cast(sizeof(F) * num_bits()); - - constexpr basic_fp() - : f(0), - e(0) {} - constexpr basic_fp(uint64_t f_val, int e_val) - : f(f_val), - e(e_val) {} - - // Constructs fp from an IEEE754 floating-point number. - template - FMT_CONSTEXPR basic_fp(Float n) { - assign(n); - } - - // Assigns n to this and return true iff predecessor is closer than successor. - template ::value)> - FMT_CONSTEXPR auto assign(Float n) -> bool { - static_assert(std::numeric_limits::digits <= 113, "unsupported FP"); - // Assume Float is in the format [sign][exponent][significand]. - using carrier_uint = typename dragonbox::float_info::carrier_uint; - const auto num_float_significand_bits = detail::num_significand_bits(); - const auto implicit_bit = carrier_uint(1) << num_float_significand_bits; - const auto significand_mask = implicit_bit - 1; - auto u = bit_cast(n); - f = static_cast(u & significand_mask); - auto biased_e = - static_cast((u & exponent_mask()) >> num_float_significand_bits); - // The predecessor is closer if n is a normalized power of 2 (f == 0) - // other than the smallest normalized number (biased_e > 1). - auto is_predecessor_closer = f == 0 && biased_e > 1; - if (biased_e == 0) - biased_e = 1; // Subnormals use biased exponent 1 (min exponent). - else if (has_implicit_bit()) - f += static_cast(implicit_bit); - e = biased_e - exponent_bias() - num_float_significand_bits; - if (!has_implicit_bit()) ++e; - return is_predecessor_closer; - } - - template ::value)> - FMT_CONSTEXPR auto assign(Float n) -> bool { - static_assert(std::numeric_limits::is_iec559, "unsupported FP"); - return assign(static_cast(n)); - } +template struct basic_fp { + F f; + int e; + + static constexpr const int num_significand_bits = + static_cast(sizeof(F) * num_bits()); + + constexpr basic_fp() : f(0), e(0) {} + constexpr basic_fp(uint64_t f_val, int e_val) : f(f_val), e(e_val) {} + + // Constructs fp from an IEEE754 floating-point number. + template FMT_CONSTEXPR basic_fp(Float n) { assign(n); } + + // Assigns n to this and return true iff predecessor is closer than successor. + template ::value)> + FMT_CONSTEXPR auto assign(Float n) -> bool { + static_assert(std::numeric_limits::digits <= 113, "unsupported FP"); + // Assume Float is in the format [sign][exponent][significand]. + using carrier_uint = typename dragonbox::float_info::carrier_uint; + const auto num_float_significand_bits = + detail::num_significand_bits(); + const auto implicit_bit = carrier_uint(1) << num_float_significand_bits; + const auto significand_mask = implicit_bit - 1; + auto u = bit_cast(n); + f = static_cast(u & significand_mask); + auto biased_e = static_cast((u & exponent_mask()) >> + num_float_significand_bits); + // The predecessor is closer if n is a normalized power of 2 (f == 0) + // other than the smallest normalized number (biased_e > 1). + auto is_predecessor_closer = f == 0 && biased_e > 1; + if (biased_e == 0) + biased_e = 1; // Subnormals use biased exponent 1 (min exponent). + else if (has_implicit_bit()) + f += static_cast(implicit_bit); + e = biased_e - exponent_bias() - num_float_significand_bits; + if (!has_implicit_bit()) ++e; + return is_predecessor_closer; + } + + template ::value)> + FMT_CONSTEXPR auto assign(Float n) -> bool { + static_assert(std::numeric_limits::is_iec559, "unsupported FP"); + return assign(static_cast(n)); + } }; using fp = basic_fp; // Normalizes the value converted from double and multiplied by (1 << SHIFT). template -FMT_CONSTEXPR basic_fp normalize(basic_fp value) { - // Handle subnormals. - const auto implicit_bit = F(1) << num_significand_bits(); - const auto shifted_implicit_bit = implicit_bit << SHIFT; - while ((value.f & shifted_implicit_bit) == 0) { - value.f <<= 1; - --value.e; - } - // Subtract 1 to account for hidden bit. - const auto offset = - basic_fp::num_significand_bits - num_significand_bits() - SHIFT - 1; - value.f <<= offset; - value.e -= offset; - return value; +FMT_CONSTEXPR auto normalize(basic_fp value) -> basic_fp { + // Handle subnormals. + const auto implicit_bit = F(1) << num_significand_bits(); + const auto shifted_implicit_bit = implicit_bit << SHIFT; + while ((value.f & shifted_implicit_bit) == 0) { + value.f <<= 1; + --value.e; + } + // Subtract 1 to account for hidden bit. + const auto offset = basic_fp::num_significand_bits - + num_significand_bits() - SHIFT - 1; + value.f <<= offset; + value.e -= offset; + return value; } // Computes lhs * rhs / pow(2, 64) rounded to nearest with half-up tie breaking. -FMT_CONSTEXPR inline uint64_t multiply(uint64_t lhs, uint64_t rhs) { +FMT_CONSTEXPR inline auto multiply(uint64_t lhs, uint64_t rhs) -> uint64_t { #if FMT_USE_INT128 - auto product = static_cast<__uint128_t>(lhs) * rhs; - auto f = static_cast(product >> 64); - return (static_cast(product) & (1ULL << 63)) != 0 ? f + 1 : f; + auto product = static_cast<__uint128_t>(lhs) * rhs; + auto f = static_cast(product >> 64); + return (static_cast(product) & (1ULL << 63)) != 0 ? f + 1 : f; #else - // Multiply 32-bit parts of significands. - uint64_t mask = (1ULL << 32) - 1; - uint64_t a = lhs >> 32, b = lhs & mask; - uint64_t c = rhs >> 32, d = rhs & mask; - uint64_t ac = a * c, bc = b * c, ad = a * d, bd = b * d; - // Compute mid 64-bit of result and round. - uint64_t mid = (bd >> 32) + (ad & mask) + (bc & mask) + (1U << 31); - return ac + (ad >> 32) + (bc >> 32) + (mid >> 32); + // Multiply 32-bit parts of significands. + uint64_t mask = (1ULL << 32) - 1; + uint64_t a = lhs >> 32, b = lhs & mask; + uint64_t c = rhs >> 32, d = rhs & mask; + uint64_t ac = a * c, bc = b * c, ad = a * d, bd = b * d; + // Compute mid 64-bit of result and round. + uint64_t mid = (bd >> 32) + (ad & mask) + (bc & mask) + (1U << 31); + return ac + (ad >> 32) + (bc >> 32) + (mid >> 32); #endif } -FMT_CONSTEXPR inline fp operator*(fp x, fp y) { return {multiply(x.f, y.f), x.e + y.e + 64}; } - -template -struct basic_data { - // Normalized 64-bit significands of pow(10, k), for k = -348, -340, ..., 340. - // These are generated by support/compute-powers.py. - static constexpr uint64_t pow10_significands[87] = { - 0xfa8fd5a0081c0288, 0xbaaee17fa23ebf76, 0x8b16fb203055ac76, 0xcf42894a5dce35ea, - 0x9a6bb0aa55653b2d, 0xe61acf033d1a45df, 0xab70fe17c79ac6ca, 0xff77b1fcbebcdc4f, - 0xbe5691ef416bd60c, 0x8dd01fad907ffc3c, 0xd3515c2831559a83, 0x9d71ac8fada6c9b5, - 0xea9c227723ee8bcb, 0xaecc49914078536d, 0x823c12795db6ce57, 0xc21094364dfb5637, - 0x9096ea6f3848984f, 0xd77485cb25823ac7, 0xa086cfcd97bf97f4, 0xef340a98172aace5, - 0xb23867fb2a35b28e, 0x84c8d4dfd2c63f3b, 0xc5dd44271ad3cdba, 0x936b9fcebb25c996, - 0xdbac6c247d62a584, 0xa3ab66580d5fdaf6, 0xf3e2f893dec3f126, 0xb5b5ada8aaff80b8, - 0x87625f056c7c4a8b, 0xc9bcff6034c13053, 0x964e858c91ba2655, 0xdff9772470297ebd, - 0xa6dfbd9fb8e5b88f, 0xf8a95fcf88747d94, 0xb94470938fa89bcf, 0x8a08f0f8bf0f156b, - 0xcdb02555653131b6, 0x993fe2c6d07b7fac, 0xe45c10c42a2b3b06, 0xaa242499697392d3, - 0xfd87b5f28300ca0e, 0xbce5086492111aeb, 0x8cbccc096f5088cc, 0xd1b71758e219652c, - 0x9c40000000000000, 0xe8d4a51000000000, 0xad78ebc5ac620000, 0x813f3978f8940984, - 0xc097ce7bc90715b3, 0x8f7e32ce7bea5c70, 0xd5d238a4abe98068, 0x9f4f2726179a2245, - 0xed63a231d4c4fb27, 0xb0de65388cc8ada8, 0x83c7088e1aab65db, 0xc45d1df942711d9a, - 0x924d692ca61be758, 0xda01ee641a708dea, 0xa26da3999aef774a, 0xf209787bb47d6b85, - 0xb454e4a179dd1877, 0x865b86925b9bc5c2, 0xc83553c5c8965d3d, 0x952ab45cfa97a0b3, - 0xde469fbd99a05fe3, 0xa59bc234db398c25, 0xf6c69a72a3989f5c, 0xb7dcbf5354e9bece, - 0x88fcf317f22241e2, 0xcc20ce9bd35c78a5, 0x98165af37b2153df, 0xe2a0b5dc971f303a, - 0xa8d9d1535ce3b396, 0xfb9b7cd9a4a7443c, 0xbb764c4ca7a44410, 0x8bab8eefb6409c1a, - 0xd01fef10a657842c, 0x9b10a4e5e9913129, 0xe7109bfba19c0c9d, 0xac2820d9623bf429, - 0x80444b5e7aa7cf85, 0xbf21e44003acdd2d, 0x8e679c2f5e44ff8f, 0xd433179d9c8cb841, - 0x9e19db92b4e31ba9, 0xeb96bf6ebadf77d9, 0xaf87023b9bf0ee6b, - }; - -#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 - #pragma GCC diagnostic push - #pragma GCC diagnostic ignored "-Wnarrowing" -#endif - // Binary exponents of pow(10, k), for k = -348, -340, ..., 340, corresponding - // to significands above. - static constexpr int16_t pow10_exponents[87] = { - -1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007, -980, -954, -927, -901, - -874, -847, -821, -794, -768, -741, -715, -688, -661, -635, -608, -582, -555, - -529, -502, -475, -449, -422, -396, -369, -343, -316, -289, -263, -236, -210, - -183, -157, -130, -103, -77, -50, -24, 3, 30, 56, 83, 109, 136, - 162, 189, 216, 242, 269, 295, 322, 348, 375, 402, 428, 455, 481, - 508, 534, 561, 588, 614, 641, 667, 694, 720, 747, 774, 800, 827, - 853, 880, 907, 933, 960, 986, 1013, 1039, 1066}; -#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 - #pragma GCC diagnostic pop -#endif - - static constexpr uint64_t power_of_10_64[20] = { - 1, FMT_POWERS_OF_10(1ULL), FMT_POWERS_OF_10(1000000000ULL), 10000000000000000000ULL}; -}; - -#if FMT_CPLUSPLUS < 201703L -template -constexpr uint64_t basic_data::pow10_significands[]; -template -constexpr int16_t basic_data::pow10_exponents[]; -template -constexpr uint64_t basic_data::power_of_10_64[]; -#endif - -// This is a struct rather than an alias to avoid shadowing warnings in gcc. -struct data : basic_data<> {}; - -// Returns a cached power of 10 `c_k = c_k.f * pow(2, c_k.e)` such that its -// (binary) exponent satisfies `min_exponent <= c_k.e <= min_exponent + 28`. -FMT_CONSTEXPR inline fp get_cached_power(int min_exponent, int& pow10_exponent) { - const int shift = 32; - // log10(2) = 0x0.4d104d427de7fbcc... - const int64_t significand = 0x4d104d427de7fbcc; - int index = - static_cast(((min_exponent + fp::num_significand_bits - 1) * (significand >> shift) + - ((int64_t(1) << shift) - 1)) // ceil - >> 32 // arithmetic shift - ); - // Decimal exponent of the first (smallest) cached power of 10. - const int first_dec_exp = -348; - // Difference between 2 consecutive decimal exponents in cached powers of 10. - const int dec_exp_step = 8; - index = (index - first_dec_exp - 1) / dec_exp_step + 1; - pow10_exponent = first_dec_exp + index * dec_exp_step; - // Using *(x + index) instead of x[index] avoids an issue with some compilers - // using the EDG frontend (e.g. nvhpc/22.3 in C++17 mode). - return {*(data::pow10_significands + index), *(data::pow10_exponents + index)}; -} - -#ifndef _MSC_VER - #define FMT_SNPRINTF snprintf -#else -FMT_API auto fmt_snprintf(char* buf, size_t size, const char* fmt, ...) -> int; - #define FMT_SNPRINTF fmt_snprintf -#endif // _MSC_VER - -// Formats a floating-point number with snprintf using the hexfloat format. -template -auto snprintf_float(T value, int precision, float_specs specs, buffer& buf) -> int { - // Buffer capacity must be non-zero, otherwise MSVC's vsnprintf_s will fail. - FMT_ASSERT(buf.capacity() > buf.size(), "empty buffer"); - FMT_ASSERT(specs.format == float_format::hex, ""); - static_assert(!std::is_same::value, ""); - - // Build the format string. - char format[7]; // The longest format is "%#.*Le". - char* format_ptr = format; - *format_ptr++ = '%'; - if (specs.showpoint) *format_ptr++ = '#'; - if (precision >= 0) { - *format_ptr++ = '.'; - *format_ptr++ = '*'; - } - if (std::is_same()) *format_ptr++ = 'L'; - *format_ptr++ = specs.upper ? 'A' : 'a'; - *format_ptr = '\0'; - - // Format using snprintf. - auto offset = buf.size(); - for (;;) { - auto begin = buf.data() + offset; - auto capacity = buf.capacity() - offset; - abort_fuzzing_if(precision > 100000); - // Suppress the warning about a nonliteral format string. - // Cannot use auto because of a bug in MinGW (#1532). - int (*snprintf_ptr)(char*, size_t, const char*, ...) = FMT_SNPRINTF; - int result = precision >= 0 ? snprintf_ptr(begin, capacity, format, precision, value) - : snprintf_ptr(begin, capacity, format, value); - if (result < 0) { - // The buffer will grow exponentially. - buf.try_reserve(buf.capacity() + 1); - continue; - } - auto size = to_unsigned(result); - // Size equal to capacity means that the last character was truncated. - if (size < capacity) { - buf.try_resize(size + offset); - return 0; - } - buf.try_reserve(size + offset + 1); // Add 1 for the terminating '\0'. - } +FMT_CONSTEXPR inline auto operator*(fp x, fp y) -> fp { + return {multiply(x.f, y.f), x.e + y.e + 64}; } -template +template () == num_bits()> using convert_float_result = - conditional_t::value || sizeof(T) == sizeof(double), double, T>; + conditional_t::value || doublish, double, T>; template constexpr auto convert_float(T value) -> convert_float_result { - return static_cast>(value); + return static_cast>(value); } -template -FMT_NOINLINE FMT_CONSTEXPR auto fill(OutputIt it, size_t n, const fill_t& fill) -> OutputIt { - auto fill_size = fill.size(); - if (fill_size == 1) return detail::fill_n(it, n, fill[0]); - auto data = fill.data(); - for (size_t i = 0; i < n; ++i) it = copy_str(data, data + fill_size, it); - return it; +template +FMT_CONSTEXPR FMT_NOINLINE auto fill(OutputIt it, size_t n, + const basic_specs& specs) -> OutputIt { + auto fill_size = specs.fill_size(); + if (fill_size == 1) return detail::fill_n(it, n, specs.fill_unit()); + if (const Char* data = specs.fill()) { + for (size_t i = 0; i < n; ++i) it = copy(data, data + fill_size, it); + } + return it; } // Writes the output of f, padded according to format specifications in specs. // size: output size in code units. // width: output display width in (terminal) column positions. -template -FMT_CONSTEXPR auto write_padded( - OutputIt out, const basic_format_specs& specs, size_t size, size_t width, F&& f) - -> OutputIt { - static_assert(align == align::left || align == align::right, ""); - unsigned spec_width = to_unsigned(specs.width); - size_t padding = spec_width > width ? spec_width - width : 0; - // Shifts are encoded as string literals because static constexpr is not - // supported in constexpr functions. - auto* shifts = align == align::left ? "\x1f\x1f\x00\x01" : "\x00\x1f\x00\x01"; - size_t left_padding = padding >> shifts[specs.align]; - size_t right_padding = padding - left_padding; - auto it = reserve(out, size + padding * specs.fill.size()); - if (left_padding != 0) it = fill(it, left_padding, specs.fill); - it = f(it); - if (right_padding != 0) it = fill(it, right_padding, specs.fill); - return base_iterator(out, it); -} - -template -constexpr auto write_padded(OutputIt out, const basic_format_specs& specs, size_t size, F&& f) - -> OutputIt { - return write_padded(out, specs, size, size, f); -} - -template -FMT_CONSTEXPR auto write_bytes(OutputIt out, - string_view bytes, - const basic_format_specs& specs) -> OutputIt { - return write_padded(out, specs, bytes.size(), [bytes](reserve_iterator it) { +template +FMT_CONSTEXPR auto write_padded(OutputIt out, const format_specs& specs, + size_t size, size_t width, F&& f) -> OutputIt { + static_assert(default_align == align::left || default_align == align::right, + ""); + unsigned spec_width = to_unsigned(specs.width); + size_t padding = spec_width > width ? spec_width - width : 0; + // Shifts are encoded as string literals because static constexpr is not + // supported in constexpr functions. + auto* shifts = + default_align == align::left ? "\x1f\x1f\x00\x01" : "\x00\x1f\x00\x01"; + size_t left_padding = padding >> shifts[static_cast(specs.align())]; + size_t right_padding = padding - left_padding; + auto it = reserve(out, size + padding * specs.fill_size()); + if (left_padding != 0) it = fill(it, left_padding, specs); + it = f(it); + if (right_padding != 0) it = fill(it, right_padding, specs); + return base_iterator(out, it); +} + +template +constexpr auto write_padded(OutputIt out, const format_specs& specs, + size_t size, F&& f) -> OutputIt { + return write_padded(out, specs, size, size, f); +} + +template +FMT_CONSTEXPR auto write_bytes(OutputIt out, string_view bytes, + const format_specs& specs = {}) -> OutputIt { + return write_padded( + out, specs, bytes.size(), [bytes](reserve_iterator it) { const char* data = bytes.data(); - return copy_str(data, data + bytes.size(), it); - }); + return copy(data, data + bytes.size(), it); + }); } template -auto write_ptr(OutputIt out, UIntPtr value, const basic_format_specs* specs) -> OutputIt { - int num_digits = count_digits<4>(value); - auto size = to_unsigned(num_digits) + size_t(2); - auto write = [=](reserve_iterator it) { - *it++ = static_cast('0'); - *it++ = static_cast('x'); - return format_uint<4, Char>(it, value, num_digits); - }; - return specs ? write_padded(out, *specs, size, write) - : base_iterator(out, write(reserve(out, size))); +auto write_ptr(OutputIt out, UIntPtr value, const format_specs* specs) + -> OutputIt { + int num_digits = count_digits<4>(value); + auto size = to_unsigned(num_digits) + size_t(2); + auto write = [=](reserve_iterator it) { + *it++ = static_cast('0'); + *it++ = static_cast('x'); + return format_base2e(4, it, value, num_digits); + }; + return specs ? write_padded(out, *specs, size, write) + : base_iterator(out, write(reserve(out, size))); } // Returns true iff the code point cp is printable. FMT_API auto is_printable(uint32_t cp) -> bool; inline auto needs_escape(uint32_t cp) -> bool { - return cp < 0x20 || cp == 0x7f || cp == '"' || cp == '\\' || !is_printable(cp); + if (cp < 0x20 || cp == 0x7f || cp == '"' || cp == '\\') return true; + if (const_check(FMT_OPTIMIZE_SIZE > 1)) return false; + return !is_printable(cp); } -template -struct find_escape_result { - const Char* begin; - const Char* end; - uint32_t cp; +template struct find_escape_result { + const Char* begin; + const Char* end; + uint32_t cp; }; template -using make_unsigned_char = typename conditional_t::value, - std::make_unsigned, - type_identity>::type; - -template -auto find_escape(const Char* begin, const Char* end) -> find_escape_result { - for (; begin != end; ++begin) { - uint32_t cp = static_cast>(*begin); - if (const_check(sizeof(Char) == 1) && cp >= 0x80) continue; - if (needs_escape(cp)) return {begin, begin + 1, cp}; - } - return {begin, nullptr, 0}; -} - -inline auto find_escape(const char* begin, const char* end) -> find_escape_result { - if (!is_utf8()) return find_escape(begin, end); - auto result = find_escape_result{end, nullptr, 0}; - for_each_codepoint(string_view(begin, to_unsigned(end - begin)), - [&](uint32_t cp, string_view sv) { - if (needs_escape(cp)) { - result = {sv.begin(), sv.end(), cp}; - return false; - } - return true; - }); - return result; +auto find_escape(const Char* begin, const Char* end) + -> find_escape_result { + for (; begin != end; ++begin) { + uint32_t cp = static_cast>(*begin); + if (const_check(sizeof(Char) == 1) && cp >= 0x80) continue; + if (needs_escape(cp)) return {begin, begin + 1, cp}; + } + return {begin, nullptr, 0}; +} + +inline auto find_escape(const char* begin, const char* end) + -> find_escape_result { + if (const_check(!use_utf8)) return find_escape(begin, end); + auto result = find_escape_result{end, nullptr, 0}; + for_each_codepoint(string_view(begin, to_unsigned(end - begin)), + [&](uint32_t cp, string_view sv) { + if (needs_escape(cp)) { + result = {sv.begin(), sv.end(), cp}; + return false; + } + return true; + }); + return result; } -#define FMT_STRING_IMPL(s, base, explicit) \ - [] { \ - /* Use the hidden visibility as a workaround for a GCC bug (#1973). */ \ - /* Use a macro-like name to avoid shadowing warnings. */ \ - struct FMT_GCC_VISIBILITY_HIDDEN FMT_COMPILE_STRING : base { \ - using char_type FMT_MAYBE_UNUSED = fmt::remove_cvref_t; \ - FMT_MAYBE_UNUSED FMT_CONSTEXPR explicit operator fmt::basic_string_view() \ - const { \ - return fmt::detail_exported::compile_string_to_view(s); \ - } \ - }; \ - return FMT_COMPILE_STRING(); \ - }() - -/** - \rst - Constructs a compile-time format string from a string literal *s*. - - **Example**:: - - // A compile-time error because 'd' is an invalid specifier for strings. - std::string s = fmt::format(FMT_STRING("{:d}"), "foo"); - \endrst - */ -#define FMT_STRING(s) FMT_STRING_IMPL(s, fmt::detail::compile_string, ) - template auto write_codepoint(OutputIt out, char prefix, uint32_t cp) -> OutputIt { - *out++ = static_cast('\\'); - *out++ = static_cast(prefix); - Char buf[width]; - fill_n(buf, width, static_cast('0')); - format_uint<4>(buf, cp, width); - return copy_str(buf, buf + width, out); + *out++ = static_cast('\\'); + *out++ = static_cast(prefix); + Char buf[width]; + fill_n(buf, width, static_cast('0')); + format_base2e(4, buf, cp, width); + return copy(buf, buf + width, out); } template -auto write_escaped_cp(OutputIt out, const find_escape_result& escape) -> OutputIt { - auto c = static_cast(escape.cp); - switch (escape.cp) { - case '\n': - *out++ = static_cast('\\'); - c = static_cast('n'); - break; - case '\r': - *out++ = static_cast('\\'); - c = static_cast('r'); - break; - case '\t': - *out++ = static_cast('\\'); - c = static_cast('t'); - break; - case '"': - FMT_FALLTHROUGH; - case '\'': - FMT_FALLTHROUGH; - case '\\': - *out++ = static_cast('\\'); - break; - default: - if (is_utf8()) { - if (escape.cp < 0x100) { - return write_codepoint<2, Char>(out, 'x', escape.cp); - } - if (escape.cp < 0x10000) { - return write_codepoint<4, Char>(out, 'u', escape.cp); - } - if (escape.cp < 0x110000) { - return write_codepoint<8, Char>(out, 'U', escape.cp); - } - } - for (Char escape_char : - basic_string_view(escape.begin, to_unsigned(escape.end - escape.begin))) { - out = write_codepoint<2, Char>(out, 'x', static_cast(escape_char) & 0xFF); - } - return out; +auto write_escaped_cp(OutputIt out, const find_escape_result& escape) + -> OutputIt { + auto c = static_cast(escape.cp); + switch (escape.cp) { + case '\n': + *out++ = static_cast('\\'); + c = static_cast('n'); + break; + case '\r': + *out++ = static_cast('\\'); + c = static_cast('r'); + break; + case '\t': + *out++ = static_cast('\\'); + c = static_cast('t'); + break; + case '"': FMT_FALLTHROUGH; + case '\'': FMT_FALLTHROUGH; + case '\\': *out++ = static_cast('\\'); break; + default: + if (escape.cp < 0x100) return write_codepoint<2, Char>(out, 'x', escape.cp); + if (escape.cp < 0x10000) + return write_codepoint<4, Char>(out, 'u', escape.cp); + if (escape.cp < 0x110000) + return write_codepoint<8, Char>(out, 'U', escape.cp); + for (Char escape_char : basic_string_view( + escape.begin, to_unsigned(escape.end - escape.begin))) { + out = write_codepoint<2, Char>(out, 'x', + static_cast(escape_char) & 0xFF); } - *out++ = c; return out; + } + *out++ = c; + return out; } template -auto write_escaped_string(OutputIt out, basic_string_view str) -> OutputIt { - *out++ = static_cast('"'); - auto begin = str.begin(), end = str.end(); - do { - auto escape = find_escape(begin, end); - out = copy_str(begin, escape.begin, out); - begin = escape.end; - if (!begin) break; - out = write_escaped_cp(out, escape); - } while (begin != end); - *out++ = static_cast('"'); - return out; +auto write_escaped_string(OutputIt out, basic_string_view str) + -> OutputIt { + *out++ = static_cast('"'); + auto begin = str.begin(), end = str.end(); + do { + auto escape = find_escape(begin, end); + out = copy(begin, escape.begin, out); + begin = escape.end; + if (!begin) break; + out = write_escaped_cp(out, escape); + } while (begin != end); + *out++ = static_cast('"'); + return out; } template auto write_escaped_char(OutputIt out, Char v) -> OutputIt { - *out++ = static_cast('\''); - if ((needs_escape(static_cast(v)) && v != static_cast('"')) || - v == static_cast('\'')) { - out = write_escaped_cp(out, find_escape_result{&v, &v + 1, static_cast(v)}); - } else { - *out++ = v; - } - *out++ = static_cast('\''); - return out; + Char v_array[1] = {v}; + *out++ = static_cast('\''); + if ((needs_escape(static_cast(v)) && v != static_cast('"')) || + v == static_cast('\'')) { + out = write_escaped_cp(out, + find_escape_result{v_array, v_array + 1, + static_cast(v)}); + } else { + *out++ = v; + } + *out++ = static_cast('\''); + return out; } template -FMT_CONSTEXPR auto write_char(OutputIt out, Char value, const basic_format_specs& specs) - -> OutputIt { - bool is_debug = specs.type == presentation_type::debug; - return write_padded(out, specs, 1, [=](reserve_iterator it) { - if (is_debug) return write_escaped_char(it, value); - *it++ = value; - return it; - }); +FMT_CONSTEXPR auto write_char(OutputIt out, Char value, + const format_specs& specs) -> OutputIt { + bool is_debug = specs.type() == presentation_type::debug; + return write_padded(out, specs, 1, [=](reserve_iterator it) { + if (is_debug) return write_escaped_char(it, value); + *it++ = value; + return it; + }); } template -FMT_CONSTEXPR auto write(OutputIt out, - Char value, - const basic_format_specs& specs, +FMT_CONSTEXPR auto write(OutputIt out, Char value, const format_specs& specs, locale_ref loc = {}) -> OutputIt { - return check_char_specs(specs) ? write_char(out, value, specs) - : write(out, static_cast(value), specs, loc); -} - -// Data for write_int that doesn't depend on output iterator type. It is used to -// avoid template code bloat. -template -struct write_int_data { - size_t size; - size_t padding; - - FMT_CONSTEXPR write_int_data(int num_digits, - unsigned prefix, - const basic_format_specs& specs) - : size((prefix >> 24) + to_unsigned(num_digits)), - padding(0) { - if (specs.align == align::numeric) { - auto width = to_unsigned(specs.width); - if (width > size) { - padding = width - size; - size = width; - } - } else if (specs.precision > num_digits) { - size = (prefix >> 24) + to_unsigned(specs.precision); - padding = to_unsigned(specs.precision - num_digits); - } - } -}; - -// Writes an integer in the format -// -// where are written by write_digits(it). -// prefix contains chars in three lower bytes and the size in the fourth byte. -template -FMT_CONSTEXPR FMT_INLINE auto write_int(OutputIt out, - int num_digits, - unsigned prefix, - const basic_format_specs& specs, - W write_digits) -> OutputIt { - // Slightly faster check for specs.width == 0 && specs.precision == -1. - if ((specs.width | (specs.precision + 1)) == 0) { - auto it = reserve(out, to_unsigned(num_digits) + (prefix >> 24)); - if (prefix != 0) { - for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8) - *it++ = static_cast(p & 0xff); - } - return base_iterator(out, write_digits(it)); - } - auto data = write_int_data(num_digits, prefix, specs); - return write_padded(out, specs, data.size, [=](reserve_iterator it) { - for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8) *it++ = static_cast(p & 0xff); - it = detail::fill_n(it, data.padding, static_cast('0')); - return write_digits(it); - }); -} - -template -class digit_grouping { -private: - thousands_sep_result sep_; - - struct next_state { - std::string::const_iterator group; - int pos; - }; - next_state initial_state() const { return {sep_.grouping.begin(), 0}; } - - // Returns the next digit group separator position. - int next(next_state& state) const { - if (!sep_.thousands_sep) return max_value(); - if (state.group == sep_.grouping.end()) return state.pos += sep_.grouping.back(); - if (*state.group <= 0 || *state.group == max_value()) return max_value(); - state.pos += *state.group++; - return state.pos; - } - -public: - explicit digit_grouping(locale_ref loc, bool localized = true) { - if (localized) - sep_ = thousands_sep(loc); - else - sep_.thousands_sep = Char(); - } - explicit digit_grouping(thousands_sep_result sep) - : sep_(sep) {} - - Char separator() const { return sep_.thousands_sep; } - - int count_separators(int num_digits) const { - int count = 0; - auto state = initial_state(); - while (num_digits > next(state)) ++count; - return count; - } - - // Applies grouping to digits and write the output to out. - template - Out apply(Out out, basic_string_view digits) const { - auto num_digits = static_cast(digits.size()); - auto separators = basic_memory_buffer(); - separators.push_back(0); - auto state = initial_state(); - while (int i = next(state)) { - if (i >= num_digits) break; - separators.push_back(i); - } - for (int i = 0, sep_index = static_cast(separators.size() - 1); i < num_digits; ++i) { - if (num_digits - i == separators[sep_index]) { - *out++ = separator(); - --sep_index; - } - *out++ = static_cast(digits[to_unsigned(i)]); - } - return out; + // char is formatted as unsigned char for consistency across platforms. + using unsigned_type = + conditional_t::value, unsigned char, unsigned>; + return check_char_specs(specs) + ? write_char(out, value, specs) + : write(out, static_cast(value), specs, loc); +} + +template class digit_grouping { + private: + std::string grouping_; + std::basic_string thousands_sep_; + + struct next_state { + std::string::const_iterator group; + int pos; + }; + auto initial_state() const -> next_state { return {grouping_.begin(), 0}; } + + // Returns the next digit group separator position. + auto next(next_state& state) const -> int { + if (thousands_sep_.empty()) return max_value(); + if (state.group == grouping_.end()) return state.pos += grouping_.back(); + if (*state.group <= 0 || *state.group == max_value()) + return max_value(); + state.pos += *state.group++; + return state.pos; + } + + public: + template ::value)> + explicit digit_grouping(Locale loc, bool localized = true) { + if (!localized) return; + auto sep = thousands_sep(loc); + grouping_ = sep.grouping; + if (sep.thousands_sep) thousands_sep_.assign(1, sep.thousands_sep); + } + digit_grouping(std::string grouping, std::basic_string sep) + : grouping_(std::move(grouping)), thousands_sep_(std::move(sep)) {} + + auto has_separator() const -> bool { return !thousands_sep_.empty(); } + + auto count_separators(int num_digits) const -> int { + int count = 0; + auto state = initial_state(); + while (num_digits > next(state)) ++count; + return count; + } + + // Applies grouping to digits and write the output to out. + template + auto apply(Out out, basic_string_view digits) const -> Out { + auto num_digits = static_cast(digits.size()); + auto separators = basic_memory_buffer(); + separators.push_back(0); + auto state = initial_state(); + while (int i = next(state)) { + if (i >= num_digits) break; + separators.push_back(i); + } + for (int i = 0, sep_index = static_cast(separators.size() - 1); + i < num_digits; ++i) { + if (num_digits - i == separators[sep_index]) { + out = copy(thousands_sep_.data(), + thousands_sep_.data() + thousands_sep_.size(), out); + --sep_index; + } + *out++ = static_cast(digits[to_unsigned(i)]); } + return out; + } }; -template -auto write_int_localized(OutputIt out, - UInt value, - unsigned prefix, - const basic_format_specs& specs, - const digit_grouping& grouping) -> OutputIt { - static_assert(std::is_same, UInt>::value, ""); - int num_digits = count_digits(value); - char digits[40]; - format_decimal(digits, value, num_digits); - unsigned size = - to_unsigned((prefix != 0 ? 1 : 0) + num_digits + grouping.count_separators(num_digits)); - return write_padded(out, specs, size, size, [&](reserve_iterator it) { - if (prefix != 0) { - char sign = static_cast(prefix); - *it++ = static_cast(sign); - } - return grouping.apply(it, string_view(digits, to_unsigned(num_digits))); - }); +FMT_CONSTEXPR inline void prefix_append(unsigned& prefix, unsigned value) { + prefix |= prefix != 0 ? value << 8 : value; + prefix += (1u + (value > 0xff ? 1 : 0)) << 24; } +// Writes a decimal integer with digit grouping. template -auto write_int_localized(OutputIt& out, - UInt value, - unsigned prefix, - const basic_format_specs& specs, - locale_ref loc) -> bool { - auto grouping = digit_grouping(loc); - out = write_int_localized(out, value, prefix, specs, grouping); - return true; -} - -FMT_CONSTEXPR inline void prefix_append(unsigned& prefix, unsigned value) { - prefix |= prefix != 0 ? value << 8 : value; - prefix += (1u + (value > 0xff ? 1 : 0)) << 24; +auto write_int(OutputIt out, UInt value, unsigned prefix, + const format_specs& specs, const digit_grouping& grouping) + -> OutputIt { + static_assert(std::is_same, UInt>::value, ""); + int num_digits = 0; + auto buffer = memory_buffer(); + switch (specs.type()) { + default: FMT_ASSERT(false, ""); FMT_FALLTHROUGH; + case presentation_type::none: + case presentation_type::dec: + num_digits = count_digits(value); + format_decimal(appender(buffer), value, num_digits); + break; + case presentation_type::hex: + if (specs.alt()) + prefix_append(prefix, unsigned(specs.upper() ? 'X' : 'x') << 8 | '0'); + num_digits = count_digits<4>(value); + format_base2e(4, appender(buffer), value, num_digits, specs.upper()); + break; + case presentation_type::oct: + num_digits = count_digits<3>(value); + // Octal prefix '0' is counted as a digit, so only add it if precision + // is not greater than the number of digits. + if (specs.alt() && specs.precision <= num_digits && value != 0) + prefix_append(prefix, '0'); + format_base2e(3, appender(buffer), value, num_digits); + break; + case presentation_type::bin: + if (specs.alt()) + prefix_append(prefix, unsigned(specs.upper() ? 'B' : 'b') << 8 | '0'); + num_digits = count_digits<1>(value); + format_base2e(1, appender(buffer), value, num_digits); + break; + case presentation_type::chr: + return write_char(out, static_cast(value), specs); + } + + unsigned size = (prefix != 0 ? prefix >> 24 : 0) + to_unsigned(num_digits) + + to_unsigned(grouping.count_separators(num_digits)); + return write_padded( + out, specs, size, size, [&](reserve_iterator it) { + for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8) + *it++ = static_cast(p & 0xff); + return grouping.apply(it, string_view(buffer.data(), buffer.size())); + }); +} + +#if FMT_USE_LOCALE +// Writes a localized value. +FMT_API auto write_loc(appender out, loc_value value, const format_specs& specs, + locale_ref loc) -> bool; +#endif +template +inline auto write_loc(OutputIt, const loc_value&, const format_specs&, + locale_ref) -> bool { + return false; } -template -struct write_int_arg { - UInt abs_value; - unsigned prefix; +template struct write_int_arg { + UInt abs_value; + unsigned prefix; }; template -FMT_CONSTEXPR auto make_write_int_arg(T value, sign_t sign) +FMT_CONSTEXPR auto make_write_int_arg(T value, sign s) -> write_int_arg> { - auto prefix = 0u; - auto abs_value = static_cast>(value); - if (is_negative(value)) { - prefix = 0x01000000 | '-'; - abs_value = 0 - abs_value; - } else { - constexpr const unsigned prefixes[4] = {0, 0, 0x1000000u | '+', 0x1000000u | ' '}; - prefix = prefixes[sign]; - } - return {abs_value, prefix}; -} + auto prefix = 0u; + auto abs_value = static_cast>(value); + if (is_negative(value)) { + prefix = 0x01000000 | '-'; + abs_value = 0 - abs_value; + } else { + constexpr const unsigned prefixes[4] = {0, 0, 0x1000000u | '+', + 0x1000000u | ' '}; + prefix = prefixes[static_cast(s)]; + } + return {abs_value, prefix}; +} + +template struct loc_writer { + basic_appender out; + const format_specs& specs; + std::basic_string sep; + std::string grouping; + std::basic_string decimal_point; + + template ::value)> + auto operator()(T value) -> bool { + auto arg = make_write_int_arg(value, specs.sign()); + write_int(out, static_cast>(arg.abs_value), arg.prefix, + specs, digit_grouping(grouping, sep)); + return true; + } + + template ::value)> + auto operator()(T) -> bool { + return false; + } +}; + +// Size and padding computation separate from write_int to avoid template bloat. +struct size_padding { + unsigned size; + unsigned padding; + + FMT_CONSTEXPR size_padding(int num_digits, unsigned prefix, + const format_specs& specs) + : size((prefix >> 24) + to_unsigned(num_digits)), padding(0) { + if (specs.align() == align::numeric) { + auto width = to_unsigned(specs.width); + if (width > size) { + padding = width - size; + size = width; + } + } else if (specs.precision > num_digits) { + size = (prefix >> 24) + to_unsigned(specs.precision); + padding = to_unsigned(specs.precision - num_digits); + } + } +}; template -FMT_CONSTEXPR FMT_INLINE auto write_int(OutputIt out, - write_int_arg arg, - const basic_format_specs& specs, - locale_ref loc) -> OutputIt { - static_assert(std::is_same>::value, ""); - auto abs_value = arg.abs_value; - auto prefix = arg.prefix; - switch (specs.type) { - case presentation_type::none: - case presentation_type::dec: { - if (specs.localized && - write_int_localized(out, static_cast>(abs_value), prefix, specs, - loc)) { - return out; - } - auto num_digits = count_digits(abs_value); - return write_int(out, num_digits, prefix, specs, [=](reserve_iterator it) { - return format_decimal(it, abs_value, num_digits).end; - }); - } - case presentation_type::hex_lower: - case presentation_type::hex_upper: { - bool upper = specs.type == presentation_type::hex_upper; - if (specs.alt) prefix_append(prefix, unsigned(upper ? 'X' : 'x') << 8 | '0'); - int num_digits = count_digits<4>(abs_value); - return write_int(out, num_digits, prefix, specs, [=](reserve_iterator it) { - return format_uint<4, Char>(it, abs_value, num_digits, upper); - }); - } - case presentation_type::bin_lower: - case presentation_type::bin_upper: { - bool upper = specs.type == presentation_type::bin_upper; - if (specs.alt) prefix_append(prefix, unsigned(upper ? 'B' : 'b') << 8 | '0'); - int num_digits = count_digits<1>(abs_value); - return write_int(out, num_digits, prefix, specs, [=](reserve_iterator it) { - return format_uint<1, Char>(it, abs_value, num_digits); - }); - } - case presentation_type::oct: { - int num_digits = count_digits<3>(abs_value); - // Octal prefix '0' is counted as a digit, so only add it if precision - // is not greater than the number of digits. - if (specs.alt && specs.precision <= num_digits && abs_value != 0) - prefix_append(prefix, '0'); - return write_int(out, num_digits, prefix, specs, [=](reserve_iterator it) { - return format_uint<3, Char>(it, abs_value, num_digits); - }); - } - case presentation_type::chr: - return write_char(out, static_cast(abs_value), specs); - default: - throw_format_error("invalid type specifier"); - } - return out; +FMT_CONSTEXPR FMT_INLINE auto write_int(OutputIt out, write_int_arg arg, + const format_specs& specs) -> OutputIt { + static_assert(std::is_same>::value, ""); + + constexpr int buffer_size = num_bits(); + char buffer[buffer_size]; + if (is_constant_evaluated()) fill_n(buffer, buffer_size, '\0'); + const char* begin = nullptr; + const char* end = buffer + buffer_size; + + auto abs_value = arg.abs_value; + auto prefix = arg.prefix; + switch (specs.type()) { + default: FMT_ASSERT(false, ""); FMT_FALLTHROUGH; + case presentation_type::none: + case presentation_type::dec: + begin = do_format_decimal(buffer, abs_value, buffer_size); + break; + case presentation_type::hex: + begin = do_format_base2e(4, buffer, abs_value, buffer_size, specs.upper()); + if (specs.alt()) + prefix_append(prefix, unsigned(specs.upper() ? 'X' : 'x') << 8 | '0'); + break; + case presentation_type::oct: { + begin = do_format_base2e(3, buffer, abs_value, buffer_size); + // Octal prefix '0' is counted as a digit, so only add it if precision + // is not greater than the number of digits. + auto num_digits = end - begin; + if (specs.alt() && specs.precision <= num_digits && abs_value != 0) + prefix_append(prefix, '0'); + break; + } + case presentation_type::bin: + begin = do_format_base2e(1, buffer, abs_value, buffer_size); + if (specs.alt()) + prefix_append(prefix, unsigned(specs.upper() ? 'B' : 'b') << 8 | '0'); + break; + case presentation_type::chr: + return write_char(out, static_cast(abs_value), specs); + } + + // Write an integer in the format + // + // prefix contains chars in three lower bytes and the size in the fourth byte. + int num_digits = static_cast(end - begin); + // Slightly faster check for specs.width == 0 && specs.precision == -1. + if ((specs.width | (specs.precision + 1)) == 0) { + auto it = reserve(out, to_unsigned(num_digits) + (prefix >> 24)); + for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8) + *it++ = static_cast(p & 0xff); + return base_iterator(out, copy(begin, end, it)); + } + auto sp = size_padding(num_digits, prefix, specs); + unsigned padding = sp.padding; + return write_padded( + out, specs, sp.size, [=](reserve_iterator it) { + for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8) + *it++ = static_cast(p & 0xff); + it = detail::fill_n(it, padding, static_cast('0')); + return copy(begin, end, it); + }); } + template FMT_CONSTEXPR FMT_NOINLINE auto write_int_noinline(OutputIt out, write_int_arg arg, - const basic_format_specs& specs, - locale_ref loc) -> OutputIt { - return write_int(out, arg, specs, loc); -} -template ::value && !std::is_same::value && - std::is_same>::value)> -FMT_CONSTEXPR FMT_INLINE auto write(OutputIt out, - T value, - const basic_format_specs& specs, - locale_ref loc) -> OutputIt { - return write_int_noinline(out, make_write_int_arg(value, specs.sign), specs, loc); + const format_specs& specs) + -> OutputIt { + return write_int(out, arg, specs); } -// An inlined version of write used in format string compilation. -template ::value && !std::is_same::value && - !std::is_same>::value)> -FMT_CONSTEXPR FMT_INLINE auto write(OutputIt out, - T value, - const basic_format_specs& specs, - locale_ref loc) -> OutputIt { - return write_int(out, make_write_int_arg(value, specs.sign), specs, loc); -} - -// An output iterator that counts the number of objects written to it and -// discards them. -class counting_iterator { -private: - size_t count_; - -public: - using iterator_category = std::output_iterator_tag; - using difference_type = std::ptrdiff_t; - using pointer = void; - using reference = void; - FMT_UNCHECKED_ITERATOR(counting_iterator); - - struct value_type { - template - FMT_CONSTEXPR void operator=(const T&) {} - }; - - FMT_CONSTEXPR counting_iterator() - : count_(0) {} - - FMT_CONSTEXPR size_t count() const { return count_; } - - FMT_CONSTEXPR counting_iterator& operator++() { - ++count_; - return *this; - } - FMT_CONSTEXPR counting_iterator operator++(int) { - auto it = *this; - ++*this; - return it; - } - FMT_CONSTEXPR friend counting_iterator operator+(counting_iterator it, difference_type n) { - it.count_ += static_cast(n); - return it; - } +template ::value && + !std::is_same::value && + !std::is_same::value)> +FMT_CONSTEXPR FMT_INLINE auto write(basic_appender out, T value, + const format_specs& specs, locale_ref loc) + -> basic_appender { + if (specs.localized() && write_loc(out, value, specs, loc)) return out; + return write_int_noinline(out, make_write_int_arg(value, specs.sign()), + specs); +} - FMT_CONSTEXPR value_type operator*() const { return {}; } -}; +// An inlined version of write used in format string compilation. +template ::value && + !std::is_same::value && + !std::is_same::value && + !std::is_same>::value)> +FMT_CONSTEXPR FMT_INLINE auto write(OutputIt out, T value, + const format_specs& specs, locale_ref loc) + -> OutputIt { + if (specs.localized() && write_loc(out, value, specs, loc)) return out; + return write_int(out, make_write_int_arg(value, specs.sign()), specs); +} template -FMT_CONSTEXPR auto write(OutputIt out, - basic_string_view s, - const basic_format_specs& specs) -> OutputIt { - auto data = s.data(); - auto size = s.size(); - if (specs.precision >= 0 && to_unsigned(specs.precision) < size) - size = code_point_index(s, to_unsigned(specs.precision)); - bool is_debug = specs.type == presentation_type::debug; - size_t width = 0; - if (specs.width != 0) { - if (is_debug) - width = write_escaped_string(counting_iterator{}, s).count(); - else - width = compute_width(basic_string_view(data, size)); - } - return write_padded(out, specs, size, width, [=](reserve_iterator it) { - if (is_debug) return write_escaped_string(it, s); - return copy_str(data, data + size, it); - }); +FMT_CONSTEXPR auto write(OutputIt out, basic_string_view s, + const format_specs& specs) -> OutputIt { + auto data = s.data(); + auto size = s.size(); + if (specs.precision >= 0 && to_unsigned(specs.precision) < size) + size = code_point_index(s, to_unsigned(specs.precision)); + + bool is_debug = specs.type() == presentation_type::debug; + if (is_debug) { + auto buf = counting_buffer(); + write_escaped_string(basic_appender(buf), s); + size = buf.count(); + } + + size_t width = 0; + if (specs.width != 0) { + width = + is_debug ? size : compute_width(basic_string_view(data, size)); + } + return write_padded( + out, specs, size, width, [=](reserve_iterator it) { + return is_debug ? write_escaped_string(it, s) + : copy(data, data + size, it); + }); } template -FMT_CONSTEXPR auto write(OutputIt out, - basic_string_view> s, - const basic_format_specs& specs, - locale_ref) -> OutputIt { - check_string_type_spec(specs.type); - return write(out, s, specs); +FMT_CONSTEXPR auto write(OutputIt out, basic_string_view s, + const format_specs& specs, locale_ref) -> OutputIt { + return write(out, s, specs); } template -FMT_CONSTEXPR auto write(OutputIt out, - const Char* s, - const basic_format_specs& specs, +FMT_CONSTEXPR auto write(OutputIt out, const Char* s, const format_specs& specs, locale_ref) -> OutputIt { - return check_cstring_type_spec(specs.type) - ? write(out, basic_string_view(s), specs, {}) - : write_ptr(out, bit_cast(s), &specs); + if (specs.type() == presentation_type::pointer) + return write_ptr(out, bit_cast(s), &specs); + if (!s) report_error("string pointer is null"); + return write(out, basic_string_view(s), specs, {}); } -template ::value && !std::is_same::value && +template ::value && + !std::is_same::value && !std::is_same::value)> FMT_CONSTEXPR auto write(OutputIt out, T value) -> OutputIt { - auto abs_value = static_cast>(value); - bool negative = is_negative(value); - // Don't do -abs_value since it trips unsigned-integer-overflow sanitizer. - if (negative) abs_value = ~abs_value + 1; - int num_digits = count_digits(abs_value); - auto size = (negative ? 1 : 0) + static_cast(num_digits); - auto it = reserve(out, size); - if (auto ptr = to_pointer(it, size)) { - if (negative) *ptr++ = static_cast('-'); - format_decimal(ptr, abs_value, num_digits); - return out; + auto abs_value = static_cast>(value); + bool negative = is_negative(value); + // Don't do -abs_value since it trips unsigned-integer-overflow sanitizer. + if (negative) abs_value = ~abs_value + 1; + int num_digits = count_digits(abs_value); + auto size = (negative ? 1 : 0) + static_cast(num_digits); + if (auto ptr = to_pointer(out, size)) { + if (negative) *ptr++ = static_cast('-'); + format_decimal(ptr, abs_value, num_digits); + return out; + } + if (negative) *out++ = static_cast('-'); + return format_decimal(out, abs_value, num_digits); +} + +template +FMT_CONSTEXPR auto parse_align(const Char* begin, const Char* end, + format_specs& specs) -> const Char* { + FMT_ASSERT(begin != end, ""); + auto alignment = align::none; + auto p = begin + code_point_length(begin); + if (end - p <= 0) p = begin; + for (;;) { + switch (to_ascii(*p)) { + case '<': alignment = align::left; break; + case '>': alignment = align::right; break; + case '^': alignment = align::center; break; + } + if (alignment != align::none) { + if (p != begin) { + auto c = *begin; + if (c == '}') return begin; + if (c == '{') { + report_error("invalid fill character '{'"); + return begin; + } + specs.set_fill(basic_string_view(begin, to_unsigned(p - begin))); + begin = p + 1; + } else { + ++begin; + } + break; + } else if (p == begin) { + break; } - if (negative) *it++ = static_cast('-'); - it = format_decimal(it, abs_value, num_digits).end; - return base_iterator(out, it); + p = begin; + } + specs.set_align(alignment); + return begin; } template -FMT_CONSTEXPR20 auto write_nonfinite(OutputIt out, - bool isnan, - basic_format_specs specs, - const float_specs& fspecs) -> OutputIt { - auto str = isnan ? (fspecs.upper ? "NAN" : "nan") : (fspecs.upper ? "INF" : "inf"); - constexpr size_t str_size = 3; - auto sign = fspecs.sign; - auto size = str_size + (sign ? 1 : 0); - // Replace '0'-padding with space for non-finite values. - const bool is_zero_fill = - specs.fill.size() == 1 && *specs.fill.data() == static_cast('0'); - if (is_zero_fill) specs.fill[0] = static_cast(' '); - return write_padded(out, specs, size, [=](reserve_iterator it) { - if (sign) *it++ = detail::sign(sign); - return copy_str(str, str + str_size, it); - }); +FMT_CONSTEXPR20 auto write_nonfinite(OutputIt out, bool isnan, + format_specs specs, sign s) -> OutputIt { + auto str = + isnan ? (specs.upper() ? "NAN" : "nan") : (specs.upper() ? "INF" : "inf"); + constexpr size_t str_size = 3; + auto size = str_size + (s != sign::none ? 1 : 0); + // Replace '0'-padding with space for non-finite values. + const bool is_zero_fill = + specs.fill_size() == 1 && specs.fill_unit() == '0'; + if (is_zero_fill) specs.set_fill(' '); + return write_padded(out, specs, size, + [=](reserve_iterator it) { + if (s != sign::none) + *it++ = detail::getsign(s); + return copy(str, str + str_size, it); + }); } // A decimal floating-point number significand * pow(10, exp). struct big_decimal_fp { - const char* significand; - int significand_size; - int exponent; + const char* significand; + int significand_size; + int exponent; }; -constexpr auto get_significand_size(const big_decimal_fp& f) -> int { return f.significand_size; } +constexpr auto get_significand_size(const big_decimal_fp& f) -> int { + return f.significand_size; +} template inline auto get_significand_size(const dragonbox::decimal_fp& f) -> int { - return count_digits(f.significand); + return count_digits(f.significand); } template -constexpr auto write_significand(OutputIt out, const char* significand, int significand_size) - -> OutputIt { - return copy_str(significand, significand + significand_size, out); +constexpr auto write_significand(OutputIt out, const char* significand, + int significand_size) -> OutputIt { + return copy(significand, significand + significand_size, out); } template -inline auto write_significand(OutputIt out, UInt significand, int significand_size) -> OutputIt { - return format_decimal(out, significand, significand_size).end; +inline auto write_significand(OutputIt out, UInt significand, + int significand_size) -> OutputIt { + return format_decimal(out, significand, significand_size); } template -FMT_CONSTEXPR20 auto write_significand( - OutputIt out, T significand, int significand_size, int exponent, const Grouping& grouping) - -> OutputIt { - if (!grouping.separator()) { - out = write_significand(out, significand, significand_size); - return detail::fill_n(out, exponent, static_cast('0')); - } - auto buffer = memory_buffer(); - write_significand(appender(buffer), significand, significand_size); - detail::fill_n(appender(buffer), exponent, '0'); - return grouping.apply(out, string_view(buffer.data(), buffer.size())); -} - -template ::value)> -inline auto write_significand( - Char* out, UInt significand, int significand_size, int integral_size, Char decimal_point) - -> Char* { - if (!decimal_point) return format_decimal(out, significand, significand_size).end; - out += significand_size + 1; - Char* end = out; - int floating_size = significand_size - integral_size; - for (int i = floating_size / 2; i > 0; --i) { - out -= 2; - copy2(out, digits2(static_cast(significand % 100))); - significand /= 100; - } - if (floating_size % 2 != 0) { - *--out = static_cast('0' + significand % 10); - significand /= 10; - } - *--out = decimal_point; - format_decimal(out - integral_size, significand, integral_size); - return end; -} - -template OutputIt { + if (!grouping.has_separator()) { + out = write_significand(out, significand, significand_size); + return detail::fill_n(out, exponent, static_cast('0')); + } + auto buffer = memory_buffer(); + write_significand(appender(buffer), significand, significand_size); + detail::fill_n(appender(buffer), exponent, '0'); + return grouping.apply(out, string_view(buffer.data(), buffer.size())); +} + +template ::value)> +inline auto write_significand(Char* out, UInt significand, int significand_size, + int integral_size, Char decimal_point) -> Char* { + if (!decimal_point) return format_decimal(out, significand, significand_size); + out += significand_size + 1; + Char* end = out; + int floating_size = significand_size - integral_size; + for (int i = floating_size / 2; i > 0; --i) { + out -= 2; + write2digits(out, static_cast(significand % 100)); + significand /= 100; + } + if (floating_size % 2 != 0) { + *--out = static_cast('0' + significand % 10); + significand /= 10; + } + *--out = decimal_point; + format_decimal(out - integral_size, significand, integral_size); + return end; +} + +template >::value)> -inline auto write_significand( - OutputIt out, UInt significand, int significand_size, int integral_size, Char decimal_point) - -> OutputIt { - // Buffer is large enough to hold digits (digits10 + 1) and a decimal point. - Char buffer[digits10() + 2]; - auto end = - write_significand(buffer, significand, significand_size, integral_size, decimal_point); - return detail::copy_str_noinline(buffer, end, out); +inline auto write_significand(OutputIt out, UInt significand, + int significand_size, int integral_size, + Char decimal_point) -> OutputIt { + // Buffer is large enough to hold digits (digits10 + 1) and a decimal point. + Char buffer[digits10() + 2]; + auto end = write_significand(buffer, significand, significand_size, + integral_size, decimal_point); + return detail::copy_noinline(buffer, end, out); } template -FMT_CONSTEXPR auto write_significand(OutputIt out, - const char* significand, - int significand_size, - int integral_size, +FMT_CONSTEXPR auto write_significand(OutputIt out, const char* significand, + int significand_size, int integral_size, Char decimal_point) -> OutputIt { - out = detail::copy_str_noinline(significand, significand + integral_size, out); - if (!decimal_point) return out; - *out++ = decimal_point; - return detail::copy_str_noinline(significand + integral_size, - significand + significand_size, out); + out = detail::copy_noinline(significand, significand + integral_size, + out); + if (!decimal_point) return out; + *out++ = decimal_point; + return detail::copy_noinline(significand + integral_size, + significand + significand_size, out); } template -FMT_CONSTEXPR20 auto write_significand(OutputIt out, - T significand, - int significand_size, - int integral_size, +FMT_CONSTEXPR20 auto write_significand(OutputIt out, T significand, + int significand_size, int integral_size, Char decimal_point, const Grouping& grouping) -> OutputIt { - if (!grouping.separator()) { - return write_significand(out, significand, significand_size, integral_size, decimal_point); - } - auto buffer = basic_memory_buffer(); - write_significand(buffer_appender(buffer), significand, significand_size, integral_size, - decimal_point); - grouping.apply(out, basic_string_view(buffer.data(), to_unsigned(integral_size))); - return detail::copy_str_noinline(buffer.data() + integral_size, buffer.end(), out); -} - -template (); + write_significand(basic_appender(buffer), significand, significand_size, + integral_size, decimal_point); + grouping.apply( + out, basic_string_view(buffer.data(), to_unsigned(integral_size))); + return detail::copy_noinline(buffer.data() + integral_size, + buffer.end(), out); +} + +template > -FMT_CONSTEXPR20 auto do_write_float(OutputIt out, - const DecimalFP& f, - const basic_format_specs& specs, - float_specs fspecs, - locale_ref loc) -> OutputIt { - auto significand = f.significand; - int significand_size = get_significand_size(f); - const Char zero = static_cast('0'); - auto sign = fspecs.sign; - size_t size = to_unsigned(significand_size) + (sign ? 1 : 0); - using iterator = reserve_iterator; - - Char decimal_point = fspecs.locale ? detail::decimal_point(loc) : static_cast('.'); - - int output_exp = f.exponent + significand_size - 1; - auto use_exp_format = [=]() { - if (fspecs.format == float_format::exp) return true; - if (fspecs.format != float_format::general) return false; - // Use the fixed notation if the exponent is in [exp_lower, exp_upper), - // e.g. 0.0001 instead of 1e-04. Otherwise use the exponent notation. - const int exp_lower = -4, exp_upper = 16; - return output_exp < exp_lower || - output_exp >= (fspecs.precision > 0 ? fspecs.precision : exp_upper); +FMT_CONSTEXPR20 auto do_write_float(OutputIt out, const DecimalFP& f, + const format_specs& specs, sign s, + int exp_upper, locale_ref loc) -> OutputIt { + auto significand = f.significand; + int significand_size = get_significand_size(f); + const Char zero = static_cast('0'); + size_t size = to_unsigned(significand_size) + (s != sign::none ? 1 : 0); + using iterator = reserve_iterator; + + Char decimal_point = specs.localized() ? detail::decimal_point(loc) + : static_cast('.'); + + int output_exp = f.exponent + significand_size - 1; + auto use_exp_format = [=]() { + if (specs.type() == presentation_type::exp) return true; + if (specs.type() == presentation_type::fixed) return false; + // Use the fixed notation if the exponent is in [exp_lower, exp_upper), + // e.g. 0.0001 instead of 1e-04. Otherwise use the exponent notation. + const int exp_lower = -4; + return output_exp < exp_lower || + output_exp >= (specs.precision > 0 ? specs.precision : exp_upper); + }; + if (use_exp_format()) { + int num_zeros = 0; + if (specs.alt()) { + num_zeros = specs.precision - significand_size; + if (num_zeros < 0) num_zeros = 0; + size += to_unsigned(num_zeros); + } else if (significand_size == 1) { + decimal_point = Char(); + } + auto abs_output_exp = output_exp >= 0 ? output_exp : -output_exp; + int exp_digits = 2; + if (abs_output_exp >= 100) exp_digits = abs_output_exp >= 1000 ? 4 : 3; + + size += to_unsigned((decimal_point ? 1 : 0) + 2 + exp_digits); + char exp_char = specs.upper() ? 'E' : 'e'; + auto write = [=](iterator it) { + if (s != sign::none) *it++ = detail::getsign(s); + // Insert a decimal point after the first digit and add an exponent. + it = write_significand(it, significand, significand_size, 1, + decimal_point); + if (num_zeros > 0) it = detail::fill_n(it, num_zeros, zero); + *it++ = static_cast(exp_char); + return write_exponent(output_exp, it); }; - if (use_exp_format()) { - int num_zeros = 0; - if (fspecs.showpoint) { - num_zeros = fspecs.precision - significand_size; - if (num_zeros < 0) num_zeros = 0; - size += to_unsigned(num_zeros); - } else if (significand_size == 1) { - decimal_point = Char(); - } - auto abs_output_exp = output_exp >= 0 ? output_exp : -output_exp; - int exp_digits = 2; - if (abs_output_exp >= 100) exp_digits = abs_output_exp >= 1000 ? 4 : 3; - - size += to_unsigned((decimal_point ? 1 : 0) + 2 + exp_digits); - char exp_char = fspecs.upper ? 'E' : 'e'; - auto write = [=](iterator it) { - if (sign) *it++ = detail::sign(sign); - // Insert a decimal point after the first digit and add an exponent. - it = write_significand(it, significand, significand_size, 1, decimal_point); - if (num_zeros > 0) it = detail::fill_n(it, num_zeros, zero); - *it++ = static_cast(exp_char); - return write_exponent(output_exp, it); - }; - return specs.width > 0 ? write_padded(out, specs, size, write) - : base_iterator(out, write(reserve(out, size))); - } - - int exp = f.exponent + significand_size; - if (f.exponent >= 0) { - // 1234e5 -> 123400000[.0+] - size += to_unsigned(f.exponent); - int num_zeros = fspecs.precision - exp; - abort_fuzzing_if(num_zeros > 5000); - if (fspecs.showpoint) { - ++size; - if (num_zeros <= 0 && fspecs.format != float_format::fixed) num_zeros = 1; - if (num_zeros > 0) size += to_unsigned(num_zeros); - } - auto grouping = Grouping(loc, fspecs.locale); - size += to_unsigned(grouping.count_separators(exp)); - return write_padded(out, specs, size, [&](iterator it) { - if (sign) *it++ = detail::sign(sign); - it = write_significand(it, significand, significand_size, f.exponent, grouping); - if (!fspecs.showpoint) return it; - *it++ = decimal_point; - return num_zeros > 0 ? detail::fill_n(it, num_zeros, zero) : it; - }); - } else if (exp > 0) { - // 1234e-2 -> 12.34[0+] - int num_zeros = fspecs.showpoint ? fspecs.precision - significand_size : 0; - size += 1 + to_unsigned(num_zeros > 0 ? num_zeros : 0); - auto grouping = Grouping(loc, fspecs.locale); - size += to_unsigned(grouping.count_separators(significand_size)); - return write_padded(out, specs, size, [&](iterator it) { - if (sign) *it++ = detail::sign(sign); - it = write_significand(it, significand, significand_size, exp, decimal_point, grouping); - return num_zeros > 0 ? detail::fill_n(it, num_zeros, zero) : it; - }); - } - // 1234e-6 -> 0.001234 - int num_zeros = -exp; - if (significand_size == 0 && fspecs.precision >= 0 && fspecs.precision < num_zeros) { - num_zeros = fspecs.precision; - } - bool pointy = num_zeros != 0 || significand_size != 0 || fspecs.showpoint; - size += 1 + (pointy ? 1 : 0) + to_unsigned(num_zeros); - return write_padded(out, specs, size, [&](iterator it) { - if (sign) *it++ = detail::sign(sign); - *it++ = zero; - if (!pointy) return it; - *it++ = decimal_point; - it = detail::fill_n(it, num_zeros, zero); - return write_significand(it, significand, significand_size); + return specs.width > 0 + ? write_padded(out, specs, size, write) + : base_iterator(out, write(reserve(out, size))); + } + + int exp = f.exponent + significand_size; + if (f.exponent >= 0) { + // 1234e5 -> 123400000[.0+] + size += to_unsigned(f.exponent); + int num_zeros = specs.precision - exp; + abort_fuzzing_if(num_zeros > 5000); + if (specs.alt()) { + ++size; + if (num_zeros <= 0 && specs.type() != presentation_type::fixed) + num_zeros = 0; + if (num_zeros > 0) size += to_unsigned(num_zeros); + } + auto grouping = Grouping(loc, specs.localized()); + size += to_unsigned(grouping.count_separators(exp)); + return write_padded(out, specs, size, [&](iterator it) { + if (s != sign::none) *it++ = detail::getsign(s); + it = write_significand(it, significand, significand_size, + f.exponent, grouping); + if (!specs.alt()) return it; + *it++ = decimal_point; + return num_zeros > 0 ? detail::fill_n(it, num_zeros, zero) : it; }); -} - -template -class fallback_digit_grouping { -public: - constexpr fallback_digit_grouping(locale_ref, bool) {} - - constexpr Char separator() const { return Char(); } - - constexpr int count_separators(int) const { return 0; } - - template - constexpr Out apply(Out out, basic_string_view) const { - return out; - } + } else if (exp > 0) { + // 1234e-2 -> 12.34[0+] + int num_zeros = specs.alt() ? specs.precision - significand_size : 0; + size += 1 + static_cast(max_of(num_zeros, 0)); + auto grouping = Grouping(loc, specs.localized()); + size += to_unsigned(grouping.count_separators(exp)); + return write_padded(out, specs, size, [&](iterator it) { + if (s != sign::none) *it++ = detail::getsign(s); + it = write_significand(it, significand, significand_size, exp, + decimal_point, grouping); + return num_zeros > 0 ? detail::fill_n(it, num_zeros, zero) : it; + }); + } + // 1234e-6 -> 0.001234 + int num_zeros = -exp; + if (significand_size == 0 && specs.precision >= 0 && + specs.precision < num_zeros) { + num_zeros = specs.precision; + } + bool pointy = num_zeros != 0 || significand_size != 0 || specs.alt(); + size += 1 + (pointy ? 1 : 0) + to_unsigned(num_zeros); + return write_padded(out, specs, size, [&](iterator it) { + if (s != sign::none) *it++ = detail::getsign(s); + *it++ = zero; + if (!pointy) return it; + *it++ = decimal_point; + it = detail::fill_n(it, num_zeros, zero); + return write_significand(it, significand, significand_size); + }); +} + +template class fallback_digit_grouping { + public: + constexpr fallback_digit_grouping(locale_ref, bool) {} + + constexpr auto has_separator() const -> bool { return false; } + + constexpr auto count_separators(int) const -> int { return 0; } + + template + constexpr auto apply(Out out, basic_string_view) const -> Out { + return out; + } }; -template -FMT_CONSTEXPR20 auto write_float(OutputIt out, - const DecimalFP& f, - const basic_format_specs& specs, - float_specs fspecs, - locale_ref loc) -> OutputIt { - if (is_constant_evaluated()) { - return do_write_float>( - out, f, specs, fspecs, loc); - } else { - return do_write_float(out, f, specs, fspecs, loc); - } +template +FMT_CONSTEXPR20 auto write_float(OutputIt out, const DecimalFP& f, + const format_specs& specs, sign s, + int exp_upper, locale_ref loc) -> OutputIt { + if (is_constant_evaluated()) { + return do_write_float>(out, f, specs, s, + exp_upper, loc); + } else { + return do_write_float(out, f, specs, s, exp_upper, loc); + } } -template -constexpr bool isnan(T value) { - return !(value >= value); // std::isnan doesn't support __float128. +template constexpr auto isnan(T value) -> bool { + return value != value; // std::isnan doesn't support __float128. } template struct has_isfinite : std::false_type {}; template -struct has_isfinite> : std::true_type {}; +struct has_isfinite> + : std::true_type {}; -template ::value&& has_isfinite::value)> -FMT_CONSTEXPR20 bool isfinite(T value) { - constexpr T inf = T(std::numeric_limits::infinity()); - if (is_constant_evaluated()) return !detail::isnan(value) && value != inf && value != -inf; - return std::isfinite(value); +template ::value&& has_isfinite::value)> +FMT_CONSTEXPR20 auto isfinite(T value) -> bool { + constexpr T inf = T(std::numeric_limits::infinity()); + if (is_constant_evaluated()) + return !detail::isnan(value) && value < inf && value > -inf; + return std::isfinite(value); } template ::value)> -FMT_CONSTEXPR bool isfinite(T value) { - T inf = T(std::numeric_limits::infinity()); - // std::isfinite doesn't support __float128. - return !detail::isnan(value) && value != inf && value != -inf; +FMT_CONSTEXPR auto isfinite(T value) -> bool { + T inf = T(std::numeric_limits::infinity()); + // std::isfinite doesn't support __float128. + return !detail::isnan(value) && value < inf && value > -inf; } template ::value)> FMT_INLINE FMT_CONSTEXPR bool signbit(T value) { - if (is_constant_evaluated()) { + if (is_constant_evaluated()) { #ifdef __cpp_if_constexpr - if constexpr (std::numeric_limits::is_iec559) { - auto bits = detail::bit_cast(static_cast(value)); - return (bits >> (num_bits() - 1)) != 0; - } -#endif + if constexpr (std::numeric_limits::is_iec559) { + auto bits = detail::bit_cast(static_cast(value)); + return (bits >> (num_bits() - 1)) != 0; } - return std::signbit(static_cast(value)); -} - -enum class round_direction { unknown, up, down }; - -// Given the divisor (normally a power of 10), the remainder = v % divisor for -// some number v and the error, returns whether v should be rounded up, down, or -// whether the rounding direction can't be determined due to error. -// error should be less than divisor / 2. -FMT_CONSTEXPR inline round_direction get_round_direction(uint64_t divisor, - uint64_t remainder, - uint64_t error) { - FMT_ASSERT(remainder < divisor, ""); // divisor - remainder won't overflow. - FMT_ASSERT(error < divisor, ""); // divisor - error won't overflow. - FMT_ASSERT(error < divisor - error, ""); // error * 2 won't overflow. - // Round down if (remainder + error) * 2 <= divisor. - if (remainder <= divisor - remainder && error * 2 <= divisor - remainder * 2) - return round_direction::down; - // Round up if (remainder - error) * 2 >= divisor. - if (remainder >= error && remainder - error >= divisor - (remainder - error)) { - return round_direction::up; - } - return round_direction::unknown; +#endif + } + return std::signbit(static_cast(value)); } -namespace digits { -enum result { - more, // Generate more digits. - done, // Done generating digits. - error // Digit generation cancelled due to an error. -}; +inline FMT_CONSTEXPR20 void adjust_precision(int& precision, int exp10) { + // Adjust fixed precision by exponent because it is relative to decimal + // point. + if (exp10 > 0 && precision > max_value() - exp10) + FMT_THROW(format_error("number is too big")); + precision += exp10; } -struct gen_digits_handler { - char* buf; - int size; - int precision; - int exp10; - bool fixed; - - FMT_CONSTEXPR digits::result on_digit( - char digit, uint64_t divisor, uint64_t remainder, uint64_t error, bool integral) { - FMT_ASSERT(remainder < divisor, ""); - buf[size++] = digit; - if (!integral && error >= remainder) return digits::error; - if (size < precision) return digits::more; - if (!integral) { - // Check if error * 2 < divisor with overflow prevention. - // The check is not needed for the integral part because error = 1 - // and divisor > (1 << 32) there. - if (error >= divisor || error >= divisor - error) return digits::error; - } else { - FMT_ASSERT(error == 1 && divisor > 2, ""); - } - auto dir = get_round_direction(divisor, remainder, error); - if (dir != round_direction::up) - return dir == round_direction::down ? digits::done : digits::error; - ++buf[size - 1]; - for (int i = size - 1; i > 0 && buf[i] > '9'; --i) { - buf[i] = '0'; - ++buf[i - 1]; - } - if (buf[0] > '9') { - buf[0] = '1'; - if (fixed) - buf[size++] = '0'; - else - ++exp10; - } - return digits::done; - } +class bigint { + private: + // A bigint is a number in the form bigit_[N - 1] ... bigit_[0] * 32^exp_. + using bigit = uint32_t; // A big digit. + using double_bigit = uint64_t; + enum { bigit_bits = num_bits() }; + enum { bigits_capacity = 32 }; + basic_memory_buffer bigits_; + int exp_; + + friend struct formatter; + + FMT_CONSTEXPR auto get_bigit(int i) const -> bigit { + return i >= exp_ && i < num_bigits() ? bigits_[i - exp_] : 0; + } + + FMT_CONSTEXPR void subtract_bigits(int index, bigit other, bigit& borrow) { + auto result = double_bigit(bigits_[index]) - other - borrow; + bigits_[index] = static_cast(result); + borrow = static_cast(result >> (bigit_bits * 2 - 1)); + } + + FMT_CONSTEXPR void remove_leading_zeros() { + int num_bigits = static_cast(bigits_.size()) - 1; + while (num_bigits > 0 && bigits_[num_bigits] == 0) --num_bigits; + bigits_.resize(to_unsigned(num_bigits + 1)); + } + + // Computes *this -= other assuming aligned bigints and *this >= other. + FMT_CONSTEXPR void subtract_aligned(const bigint& other) { + FMT_ASSERT(other.exp_ >= exp_, "unaligned bigints"); + FMT_ASSERT(compare(*this, other) >= 0, ""); + bigit borrow = 0; + int i = other.exp_ - exp_; + for (size_t j = 0, n = other.bigits_.size(); j != n; ++i, ++j) + subtract_bigits(i, other.bigits_[j], borrow); + if (borrow != 0) subtract_bigits(i, 0, borrow); + FMT_ASSERT(borrow == 0, ""); + remove_leading_zeros(); + } + + FMT_CONSTEXPR void multiply(uint32_t value) { + bigit carry = 0; + const double_bigit wide_value = value; + for (size_t i = 0, n = bigits_.size(); i < n; ++i) { + double_bigit result = bigits_[i] * wide_value + carry; + bigits_[i] = static_cast(result); + carry = static_cast(result >> bigit_bits); + } + if (carry != 0) bigits_.push_back(carry); + } + + template ::value || + std::is_same::value)> + FMT_CONSTEXPR void multiply(UInt value) { + using half_uint = + conditional_t::value, uint64_t, uint32_t>; + const int shift = num_bits() - bigit_bits; + const UInt lower = static_cast(value); + const UInt upper = value >> num_bits(); + UInt carry = 0; + for (size_t i = 0, n = bigits_.size(); i < n; ++i) { + UInt result = lower * bigits_[i] + static_cast(carry); + carry = (upper * bigits_[i] << shift) + (result >> bigit_bits) + + (carry >> bigit_bits); + bigits_[i] = static_cast(result); + } + while (carry != 0) { + bigits_.push_back(static_cast(carry)); + carry >>= bigit_bits; + } + } + + template ::value || + std::is_same::value)> + FMT_CONSTEXPR void assign(UInt n) { + size_t num_bigits = 0; + do { + bigits_[num_bigits++] = static_cast(n); + n >>= bigit_bits; + } while (n != 0); + bigits_.resize(num_bigits); + exp_ = 0; + } + + public: + FMT_CONSTEXPR bigint() : exp_(0) {} + explicit bigint(uint64_t n) { assign(n); } + + bigint(const bigint&) = delete; + void operator=(const bigint&) = delete; + + FMT_CONSTEXPR void assign(const bigint& other) { + auto size = other.bigits_.size(); + bigits_.resize(size); + auto data = other.bigits_.data(); + copy(data, data + size, bigits_.data()); + exp_ = other.exp_; + } + + template FMT_CONSTEXPR void operator=(Int n) { + FMT_ASSERT(n > 0, ""); + assign(uint64_or_128_t(n)); + } + + FMT_CONSTEXPR auto num_bigits() const -> int { + return static_cast(bigits_.size()) + exp_; + } + + FMT_CONSTEXPR auto operator<<=(int shift) -> bigint& { + FMT_ASSERT(shift >= 0, ""); + exp_ += shift / bigit_bits; + shift %= bigit_bits; + if (shift == 0) return *this; + bigit carry = 0; + for (size_t i = 0, n = bigits_.size(); i < n; ++i) { + bigit c = bigits_[i] >> (bigit_bits - shift); + bigits_[i] = (bigits_[i] << shift) + carry; + carry = c; + } + if (carry != 0) bigits_.push_back(carry); + return *this; + } + + template FMT_CONSTEXPR auto operator*=(Int value) -> bigint& { + FMT_ASSERT(value > 0, ""); + multiply(uint32_or_64_or_128_t(value)); + return *this; + } + + friend FMT_CONSTEXPR auto compare(const bigint& b1, const bigint& b2) -> int { + int num_bigits1 = b1.num_bigits(), num_bigits2 = b2.num_bigits(); + if (num_bigits1 != num_bigits2) return num_bigits1 > num_bigits2 ? 1 : -1; + int i = static_cast(b1.bigits_.size()) - 1; + int j = static_cast(b2.bigits_.size()) - 1; + int end = i - j; + if (end < 0) end = 0; + for (; i >= end; --i, --j) { + bigit b1_bigit = b1.bigits_[i], b2_bigit = b2.bigits_[j]; + if (b1_bigit != b2_bigit) return b1_bigit > b2_bigit ? 1 : -1; + } + if (i != j) return i > j ? 1 : -1; + return 0; + } + + // Returns compare(lhs1 + lhs2, rhs). + friend FMT_CONSTEXPR auto add_compare(const bigint& lhs1, const bigint& lhs2, + const bigint& rhs) -> int { + int max_lhs_bigits = max_of(lhs1.num_bigits(), lhs2.num_bigits()); + int num_rhs_bigits = rhs.num_bigits(); + if (max_lhs_bigits + 1 < num_rhs_bigits) return -1; + if (max_lhs_bigits > num_rhs_bigits) return 1; + double_bigit borrow = 0; + int min_exp = min_of(min_of(lhs1.exp_, lhs2.exp_), rhs.exp_); + for (int i = num_rhs_bigits - 1; i >= min_exp; --i) { + double_bigit sum = double_bigit(lhs1.get_bigit(i)) + lhs2.get_bigit(i); + bigit rhs_bigit = rhs.get_bigit(i); + if (sum > rhs_bigit + borrow) return 1; + borrow = rhs_bigit + borrow - sum; + if (borrow > 1) return -1; + borrow <<= bigit_bits; + } + return borrow != 0 ? -1 : 0; + } + + // Assigns pow(10, exp) to this bigint. + FMT_CONSTEXPR20 void assign_pow10(int exp) { + FMT_ASSERT(exp >= 0, ""); + if (exp == 0) return *this = 1; + int bitmask = 1 << (num_bits() - + countl_zero(static_cast(exp)) - 1); + // pow(10, exp) = pow(5, exp) * pow(2, exp). First compute pow(5, exp) by + // repeated squaring and multiplication. + *this = 5; + bitmask >>= 1; + while (bitmask != 0) { + square(); + if ((exp & bitmask) != 0) *this *= 5; + bitmask >>= 1; + } + *this <<= exp; // Multiply by pow(2, exp) by shifting. + } + + FMT_CONSTEXPR20 void square() { + int num_bigits = static_cast(bigits_.size()); + int num_result_bigits = 2 * num_bigits; + basic_memory_buffer n(std::move(bigits_)); + bigits_.resize(to_unsigned(num_result_bigits)); + auto sum = uint128_t(); + for (int bigit_index = 0; bigit_index < num_bigits; ++bigit_index) { + // Compute bigit at position bigit_index of the result by adding + // cross-product terms n[i] * n[j] such that i + j == bigit_index. + for (int i = 0, j = bigit_index; j >= 0; ++i, --j) { + // Most terms are multiplied twice which can be optimized in the future. + sum += double_bigit(n[i]) * n[j]; + } + bigits_[bigit_index] = static_cast(sum); + sum >>= num_bits(); // Compute the carry. + } + // Do the same for the top half. + for (int bigit_index = num_bigits; bigit_index < num_result_bigits; + ++bigit_index) { + for (int j = num_bigits - 1, i = bigit_index - j; i < num_bigits;) + sum += double_bigit(n[i++]) * n[j--]; + bigits_[bigit_index] = static_cast(sum); + sum >>= num_bits(); + } + remove_leading_zeros(); + exp_ *= 2; + } + + // If this bigint has a bigger exponent than other, adds trailing zero to make + // exponents equal. This simplifies some operations such as subtraction. + FMT_CONSTEXPR void align(const bigint& other) { + int exp_difference = exp_ - other.exp_; + if (exp_difference <= 0) return; + int num_bigits = static_cast(bigits_.size()); + bigits_.resize(to_unsigned(num_bigits + exp_difference)); + for (int i = num_bigits - 1, j = i + exp_difference; i >= 0; --i, --j) + bigits_[j] = bigits_[i]; + memset(bigits_.data(), 0, to_unsigned(exp_difference) * sizeof(bigit)); + exp_ -= exp_difference; + } + + // Divides this bignum by divisor, assigning the remainder to this and + // returning the quotient. + FMT_CONSTEXPR auto divmod_assign(const bigint& divisor) -> int { + FMT_ASSERT(this != &divisor, ""); + if (compare(*this, divisor) < 0) return 0; + FMT_ASSERT(divisor.bigits_[divisor.bigits_.size() - 1u] != 0, ""); + align(divisor); + int quotient = 0; + do { + subtract_aligned(divisor); + ++quotient; + } while (compare(*this, divisor) >= 0); + return quotient; + } }; -inline FMT_CONSTEXPR20 void adjust_precision(int& precision, int exp10) { - // Adjust fixed precision by exponent because it is relative to decimal - // point. - if (exp10 > 0 && precision > max_value() - exp10) - FMT_THROW(format_error("number is too big")); - precision += exp10; -} - -// Generates output using the Grisu digit-gen algorithm. -// error: the size of the region (lower, upper) outside of which numbers -// definitely do not round to value (Delta in Grisu3). -FMT_INLINE FMT_CONSTEXPR20 auto grisu_gen_digits(fp value, - uint64_t error, - int& exp, - gen_digits_handler& handler) -> digits::result { - const fp one(1ULL << -value.e, value.e); - // The integral part of scaled value (p1 in Grisu) = value / one. It cannot be - // zero because it contains a product of two 64-bit numbers with MSB set (due - // to normalization) - 1, shifted right by at most 60 bits. - auto integral = static_cast(value.f >> -one.e); - FMT_ASSERT(integral != 0, ""); - FMT_ASSERT(integral == value.f >> -one.e, ""); - // The fractional part of scaled value (p2 in Grisu) c = value % one. - uint64_t fractional = value.f & (one.f - 1); - exp = count_digits(integral); // kappa in Grisu. - // Non-fixed formats require at least one digit and no precision adjustment. - if (handler.fixed) { - adjust_precision(handler.precision, exp + handler.exp10); - // Check if precision is satisfied just by leading zeros, e.g. - // format("{:.2f}", 0.001) gives "0.00" without generating any digits. - if (handler.precision <= 0) { - if (handler.precision < 0) return digits::done; - // Divide by 10 to prevent overflow. - uint64_t divisor = data::power_of_10_64[exp - 1] << -one.e; - auto dir = get_round_direction(divisor, value.f / 10, error * 10); - if (dir == round_direction::unknown) return digits::error; - handler.buf[handler.size++] = dir == round_direction::up ? '1' : '0'; - return digits::done; - } - } - // Generate digits for the integral part. This can produce up to 10 digits. - do { - uint32_t digit = 0; - auto divmod_integral = [&](uint32_t divisor) { - digit = integral / divisor; - integral %= divisor; - }; - // This optimization by Milo Yip reduces the number of integer divisions by - // one per iteration. - switch (exp) { - case 10: - divmod_integral(1000000000); - break; - case 9: - divmod_integral(100000000); - break; - case 8: - divmod_integral(10000000); - break; - case 7: - divmod_integral(1000000); - break; - case 6: - divmod_integral(100000); - break; - case 5: - divmod_integral(10000); - break; - case 4: - divmod_integral(1000); - break; - case 3: - divmod_integral(100); - break; - case 2: - divmod_integral(10); - break; - case 1: - digit = integral; - integral = 0; - break; - default: - FMT_ASSERT(false, "invalid number of digits"); - } - --exp; - auto remainder = (static_cast(integral) << -one.e) + fractional; - auto result = handler.on_digit(static_cast('0' + digit), - data::power_of_10_64[exp] << -one.e, remainder, error, true); - if (result != digits::more) return result; - } while (exp > 0); - // Generate digits for the fractional part. +// format_dragon flags. +enum dragon { + predecessor_closer = 1, + fixup = 2, // Run fixup to correct exp10 which can be off by one. + fixed = 4, +}; + +// Formats a floating-point number using a variation of the Fixed-Precision +// Positive Floating-Point Printout ((FPP)^2) algorithm by Steele & White: +// https://fmt.dev/papers/p372-steele.pdf. +FMT_CONSTEXPR20 inline void format_dragon(basic_fp value, + unsigned flags, int num_digits, + buffer& buf, int& exp10) { + bigint numerator; // 2 * R in (FPP)^2. + bigint denominator; // 2 * S in (FPP)^2. + // lower and upper are differences between value and corresponding boundaries. + bigint lower; // (M^- in (FPP)^2). + bigint upper_store; // upper's value if different from lower. + bigint* upper = nullptr; // (M^+ in (FPP)^2). + // Shift numerator and denominator by an extra bit or two (if lower boundary + // is closer) to make lower and upper integers. This eliminates multiplication + // by 2 during later computations. + bool is_predecessor_closer = (flags & dragon::predecessor_closer) != 0; + int shift = is_predecessor_closer ? 2 : 1; + if (value.e >= 0) { + numerator = value.f; + numerator <<= value.e + shift; + lower = 1; + lower <<= value.e; + if (is_predecessor_closer) { + upper_store = 1; + upper_store <<= value.e + 1; + upper = &upper_store; + } + denominator.assign_pow10(exp10); + denominator <<= shift; + } else if (exp10 < 0) { + numerator.assign_pow10(-exp10); + lower.assign(numerator); + if (is_predecessor_closer) { + upper_store.assign(numerator); + upper_store <<= 1; + upper = &upper_store; + } + numerator *= value.f; + numerator <<= shift; + denominator = 1; + denominator <<= shift - value.e; + } else { + numerator = value.f; + numerator <<= shift; + denominator.assign_pow10(exp10); + denominator <<= shift - value.e; + lower = 1; + if (is_predecessor_closer) { + upper_store = 1ULL << 1; + upper = &upper_store; + } + } + int even = static_cast((value.f & 1) == 0); + if (!upper) upper = &lower; + bool shortest = num_digits < 0; + if ((flags & dragon::fixup) != 0) { + if (add_compare(numerator, *upper, denominator) + even <= 0) { + --exp10; + numerator *= 10; + if (num_digits < 0) { + lower *= 10; + if (upper != &lower) *upper *= 10; + } + } + if ((flags & dragon::fixed) != 0) adjust_precision(num_digits, exp10 + 1); + } + // Invariant: value == (numerator / denominator) * pow(10, exp10). + if (shortest) { + // Generate the shortest representation. + num_digits = 0; + char* data = buf.data(); for (;;) { - fractional *= 10; - error *= 10; - char digit = static_cast('0' + (fractional >> -one.e)); - fractional &= one.f - 1; - --exp; - auto result = handler.on_digit(digit, one.f, fractional, error, false); - if (result != digits::more) return result; - } + int digit = numerator.divmod_assign(denominator); + bool low = compare(numerator, lower) - even < 0; // numerator <[=] lower. + // numerator + upper >[=] pow10: + bool high = add_compare(numerator, *upper, denominator) + even > 0; + data[num_digits++] = static_cast('0' + digit); + if (low || high) { + if (!low) { + ++data[num_digits - 1]; + } else if (high) { + int result = add_compare(numerator, numerator, denominator); + // Round half to even. + if (result > 0 || (result == 0 && (digit % 2) != 0)) + ++data[num_digits - 1]; + } + buf.try_resize(to_unsigned(num_digits)); + exp10 -= num_digits - 1; + return; + } + numerator *= 10; + lower *= 10; + if (upper != &lower) *upper *= 10; + } + } + // Generate the given number of digits. + exp10 -= num_digits - 1; + if (num_digits <= 0) { + auto digit = '0'; + if (num_digits == 0) { + denominator *= 10; + digit = add_compare(numerator, numerator, denominator) > 0 ? '1' : '0'; + } + buf.push_back(digit); + return; + } + buf.try_resize(to_unsigned(num_digits)); + for (int i = 0; i < num_digits - 1; ++i) { + int digit = numerator.divmod_assign(denominator); + buf[i] = static_cast('0' + digit); + numerator *= 10; + } + int digit = numerator.divmod_assign(denominator); + auto result = add_compare(numerator, numerator, denominator); + if (result > 0 || (result == 0 && (digit % 2) != 0)) { + if (digit == 9) { + const auto overflow = '0' + 10; + buf[num_digits - 1] = overflow; + // Propagate the carry. + for (int i = num_digits - 1; i > 0 && buf[i] == overflow; --i) { + buf[i] = '0'; + ++buf[i - 1]; + } + if (buf[0] == overflow) { + buf[0] = '1'; + if ((flags & dragon::fixed) != 0) + buf.push_back('0'); + else + ++exp10; + } + return; + } + ++digit; + } + buf[num_digits - 1] = static_cast('0' + digit); } -class bigint { -private: - // A bigint is stored as an array of bigits (big digits), with bigit at index - // 0 being the least significant one. - using bigit = uint32_t; - using double_bigit = uint64_t; - enum { bigits_capacity = 32 }; - basic_memory_buffer bigits_; - int exp_; - - FMT_CONSTEXPR20 bigit operator[](int index) const { return bigits_[to_unsigned(index)]; } - FMT_CONSTEXPR20 bigit& operator[](int index) { return bigits_[to_unsigned(index)]; } - - static constexpr const int bigit_bits = num_bits(); - - friend struct formatter; - - FMT_CONSTEXPR20 void subtract_bigits(int index, bigit other, bigit& borrow) { - auto result = static_cast((*this)[index]) - other - borrow; - (*this)[index] = static_cast(result); - borrow = static_cast(result >> (bigit_bits * 2 - 1)); - } +// Formats a floating-point number using the hexfloat format. +template ::value)> +FMT_CONSTEXPR20 void format_hexfloat(Float value, format_specs specs, + buffer& buf) { + // float is passed as double to reduce the number of instantiations and to + // simplify implementation. + static_assert(!std::is_same::value, ""); - FMT_CONSTEXPR20 void remove_leading_zeros() { - int num_bigits = static_cast(bigits_.size()) - 1; - while (num_bigits > 0 && (*this)[num_bigits] == 0) --num_bigits; - bigits_.resize(to_unsigned(num_bigits + 1)); - } + using info = dragonbox::float_info; - // Computes *this -= other assuming aligned bigints and *this >= other. - FMT_CONSTEXPR20 void subtract_aligned(const bigint& other) { - FMT_ASSERT(other.exp_ >= exp_, "unaligned bigints"); - FMT_ASSERT(compare(*this, other) >= 0, ""); - bigit borrow = 0; - int i = other.exp_ - exp_; - for (size_t j = 0, n = other.bigits_.size(); j != n; ++i, ++j) - subtract_bigits(i, other.bigits_[j], borrow); - while (borrow > 0) subtract_bigits(i, 0, borrow); - remove_leading_zeros(); - } + // Assume Float is in the format [sign][exponent][significand]. + using carrier_uint = typename info::carrier_uint; - FMT_CONSTEXPR20 void multiply(uint32_t value) { - const double_bigit wide_value = value; - bigit carry = 0; - for (size_t i = 0, n = bigits_.size(); i < n; ++i) { - double_bigit result = bigits_[i] * wide_value + carry; - bigits_[i] = static_cast(result); - carry = static_cast(result >> bigit_bits); - } - if (carry != 0) bigits_.push_back(carry); - } + const auto num_float_significand_bits = detail::num_significand_bits(); - template ::value || - std::is_same::value)> - FMT_CONSTEXPR20 void multiply(UInt value) { - using half_uint = conditional_t::value, uint64_t, uint32_t>; - const int shift = num_bits() - bigit_bits; - const UInt lower = static_cast(value); - const UInt upper = value >> num_bits(); - UInt carry = 0; - for (size_t i = 0, n = bigits_.size(); i < n; ++i) { - UInt result = lower * bigits_[i] + static_cast(carry); - carry = (upper * bigits_[i] << shift) + (result >> bigit_bits) + (carry >> bigit_bits); - bigits_[i] = static_cast(result); - } - while (carry != 0) { - bigits_.push_back(static_cast(carry)); - carry >>= bigit_bits; - } - } + basic_fp f(value); + f.e += num_float_significand_bits; + if (!has_implicit_bit()) --f.e; - template ::value || - std::is_same::value)> - FMT_CONSTEXPR20 void assign(UInt n) { - size_t num_bigits = 0; - do { - bigits_[num_bigits++] = static_cast(n); - n >>= bigit_bits; - } while (n != 0); - bigits_.resize(num_bigits); - exp_ = 0; - } + const auto num_fraction_bits = + num_float_significand_bits + (has_implicit_bit() ? 1 : 0); + const auto num_xdigits = (num_fraction_bits + 3) / 4; -public: - FMT_CONSTEXPR20 bigint() - : exp_(0) {} - explicit bigint(uint64_t n) { assign(n); } + const auto leading_shift = ((num_xdigits - 1) * 4); + const auto leading_mask = carrier_uint(0xF) << leading_shift; + const auto leading_xdigit = + static_cast((f.f & leading_mask) >> leading_shift); + if (leading_xdigit > 1) f.e -= (32 - countl_zero(leading_xdigit) - 1); - bigint(const bigint&) = delete; - void operator=(const bigint&) = delete; + int print_xdigits = num_xdigits - 1; + if (specs.precision >= 0 && print_xdigits > specs.precision) { + const int shift = ((print_xdigits - specs.precision - 1) * 4); + const auto mask = carrier_uint(0xF) << shift; + const auto v = static_cast((f.f & mask) >> shift); - FMT_CONSTEXPR20 void assign(const bigint& other) { - auto size = other.bigits_.size(); - bigits_.resize(size); - auto data = other.bigits_.data(); - std::copy(data, data + size, make_checked(bigits_.data(), size)); - exp_ = other.exp_; + if (v >= 8) { + const auto inc = carrier_uint(1) << (shift + 4); + f.f += inc; + f.f &= ~(inc - 1); } - template - FMT_CONSTEXPR20 void operator=(Int n) { - FMT_ASSERT(n > 0, ""); - assign(uint64_or_128_t(n)); + // Check long double overflow + if (!has_implicit_bit()) { + const auto implicit_bit = carrier_uint(1) << num_float_significand_bits; + if ((f.f & implicit_bit) == implicit_bit) { + f.f >>= 4; + f.e += 4; + } } - FMT_CONSTEXPR20 int num_bigits() const { return static_cast(bigits_.size()) + exp_; } - - FMT_NOINLINE FMT_CONSTEXPR20 bigint& operator<<=(int shift) { - FMT_ASSERT(shift >= 0, ""); - exp_ += shift / bigit_bits; - shift %= bigit_bits; - if (shift == 0) return *this; - bigit carry = 0; - for (size_t i = 0, n = bigits_.size(); i < n; ++i) { - bigit c = bigits_[i] >> (bigit_bits - shift); - bigits_[i] = (bigits_[i] << shift) + carry; - carry = c; - } - if (carry != 0) bigits_.push_back(carry); - return *this; - } + print_xdigits = specs.precision; + } - template - FMT_CONSTEXPR20 bigint& operator*=(Int value) { - FMT_ASSERT(value > 0, ""); - multiply(uint32_or_64_or_128_t(value)); - return *this; - } + char xdigits[num_bits() / 4]; + detail::fill_n(xdigits, sizeof(xdigits), '0'); + format_base2e(4, xdigits, f.f, num_xdigits, specs.upper()); - friend FMT_CONSTEXPR20 int compare(const bigint& lhs, const bigint& rhs) { - int num_lhs_bigits = lhs.num_bigits(), num_rhs_bigits = rhs.num_bigits(); - if (num_lhs_bigits != num_rhs_bigits) return num_lhs_bigits > num_rhs_bigits ? 1 : -1; - int i = static_cast(lhs.bigits_.size()) - 1; - int j = static_cast(rhs.bigits_.size()) - 1; - int end = i - j; - if (end < 0) end = 0; - for (; i >= end; --i, --j) { - bigit lhs_bigit = lhs[i], rhs_bigit = rhs[j]; - if (lhs_bigit != rhs_bigit) return lhs_bigit > rhs_bigit ? 1 : -1; - } - if (i != j) return i > j ? 1 : -1; - return 0; - } + // Remove zero tail + while (print_xdigits > 0 && xdigits[print_xdigits] == '0') --print_xdigits; - // Returns compare(lhs1 + lhs2, rhs). - friend FMT_CONSTEXPR20 int add_compare(const bigint& lhs1, - const bigint& lhs2, - const bigint& rhs) { - auto minimum = [](int a, int b) { return a < b ? a : b; }; - auto maximum = [](int a, int b) { return a > b ? a : b; }; - int max_lhs_bigits = maximum(lhs1.num_bigits(), lhs2.num_bigits()); - int num_rhs_bigits = rhs.num_bigits(); - if (max_lhs_bigits + 1 < num_rhs_bigits) return -1; - if (max_lhs_bigits > num_rhs_bigits) return 1; - auto get_bigit = [](const bigint& n, int i) -> bigit { - return i >= n.exp_ && i < n.num_bigits() ? n[i - n.exp_] : 0; - }; - double_bigit borrow = 0; - int min_exp = minimum(minimum(lhs1.exp_, lhs2.exp_), rhs.exp_); - for (int i = num_rhs_bigits - 1; i >= min_exp; --i) { - double_bigit sum = static_cast(get_bigit(lhs1, i)) + get_bigit(lhs2, i); - bigit rhs_bigit = get_bigit(rhs, i); - if (sum > rhs_bigit + borrow) return 1; - borrow = rhs_bigit + borrow - sum; - if (borrow > 1) return -1; - borrow <<= bigit_bits; - } - return borrow != 0 ? -1 : 0; - } + buf.push_back('0'); + buf.push_back(specs.upper() ? 'X' : 'x'); + buf.push_back(xdigits[0]); + if (specs.alt() || print_xdigits > 0 || print_xdigits < specs.precision) + buf.push_back('.'); + buf.append(xdigits + 1, xdigits + 1 + print_xdigits); + for (; print_xdigits < specs.precision; ++print_xdigits) buf.push_back('0'); - // Assigns pow(10, exp) to this bigint. - FMT_CONSTEXPR20 void assign_pow10(int exp) { - FMT_ASSERT(exp >= 0, ""); - if (exp == 0) return *this = 1; - // Find the top bit. - int bitmask = 1; - while (exp >= bitmask) bitmask <<= 1; - bitmask >>= 1; - // pow(10, exp) = pow(5, exp) * pow(2, exp). First compute pow(5, exp) by - // repeated squaring and multiplication. - *this = 5; - bitmask >>= 1; - while (bitmask != 0) { - square(); - if ((exp & bitmask) != 0) *this *= 5; - bitmask >>= 1; - } - *this <<= exp; // Multiply by pow(2, exp) by shifting. - } + buf.push_back(specs.upper() ? 'P' : 'p'); - FMT_CONSTEXPR20 void square() { - int num_bigits = static_cast(bigits_.size()); - int num_result_bigits = 2 * num_bigits; - basic_memory_buffer n(std::move(bigits_)); - bigits_.resize(to_unsigned(num_result_bigits)); - auto sum = uint128_t(); - for (int bigit_index = 0; bigit_index < num_bigits; ++bigit_index) { - // Compute bigit at position bigit_index of the result by adding - // cross-product terms n[i] * n[j] such that i + j == bigit_index. - for (int i = 0, j = bigit_index; j >= 0; ++i, --j) { - // Most terms are multiplied twice which can be optimized in the future. - sum += static_cast(n[i]) * n[j]; - } - (*this)[bigit_index] = static_cast(sum); - sum >>= num_bits(); // Compute the carry. - } - // Do the same for the top half. - for (int bigit_index = num_bigits; bigit_index < num_result_bigits; ++bigit_index) { - for (int j = num_bigits - 1, i = bigit_index - j; i < num_bigits;) - sum += static_cast(n[i++]) * n[j--]; - (*this)[bigit_index] = static_cast(sum); - sum >>= num_bits(); - } - remove_leading_zeros(); - exp_ *= 2; - } - - // If this bigint has a bigger exponent than other, adds trailing zero to make - // exponents equal. This simplifies some operations such as subtraction. - FMT_CONSTEXPR20 void align(const bigint& other) { - int exp_difference = exp_ - other.exp_; - if (exp_difference <= 0) return; - int num_bigits = static_cast(bigits_.size()); - bigits_.resize(to_unsigned(num_bigits + exp_difference)); - for (int i = num_bigits - 1, j = i + exp_difference; i >= 0; --i, --j) - bigits_[j] = bigits_[i]; - std::uninitialized_fill_n(bigits_.data(), exp_difference, 0); - exp_ -= exp_difference; - } - - // Divides this bignum by divisor, assigning the remainder to this and - // returning the quotient. - FMT_CONSTEXPR20 int divmod_assign(const bigint& divisor) { - FMT_ASSERT(this != &divisor, ""); - if (compare(*this, divisor) < 0) return 0; - FMT_ASSERT(divisor.bigits_[divisor.bigits_.size() - 1u] != 0, ""); - align(divisor); - int quotient = 0; - do { - subtract_aligned(divisor); - ++quotient; - } while (compare(*this, divisor) >= 0); - return quotient; - } -}; + uint32_t abs_e; + if (f.e < 0) { + buf.push_back('-'); + abs_e = static_cast(-f.e); + } else { + buf.push_back('+'); + abs_e = static_cast(f.e); + } + format_decimal(appender(buf), abs_e, detail::count_digits(abs_e)); +} -// format_dragon flags. -enum dragon { - predecessor_closer = 1, - fixup = 2, // Run fixup to correct exp10 which can be off by one. - fixed = 4, -}; +template ::value)> +FMT_CONSTEXPR20 void format_hexfloat(Float value, format_specs specs, + buffer& buf) { + format_hexfloat(static_cast(value), specs, buf); +} -// Formats a floating-point number using a variation of the Fixed-Precision -// Positive Floating-Point Printout ((FPP)^2) algorithm by Steele & White: -// https://fmt.dev/papers/p372-steele.pdf. -FMT_CONSTEXPR20 inline void format_dragon( - basic_fp value, unsigned flags, int num_digits, buffer& buf, int& exp10) { - bigint numerator; // 2 * R in (FPP)^2. - bigint denominator; // 2 * S in (FPP)^2. - // lower and upper are differences between value and corresponding boundaries. - bigint lower; // (M^- in (FPP)^2). - bigint upper_store; // upper's value if different from lower. - bigint* upper = nullptr; // (M^+ in (FPP)^2). - // Shift numerator and denominator by an extra bit or two (if lower boundary - // is closer) to make lower and upper integers. This eliminates multiplication - // by 2 during later computations. - bool is_predecessor_closer = (flags & dragon::predecessor_closer) != 0; - int shift = is_predecessor_closer ? 2 : 1; - if (value.e >= 0) { - numerator = value.f; - numerator <<= value.e + shift; - lower = 1; - lower <<= value.e; - if (is_predecessor_closer) { - upper_store = 1; - upper_store <<= value.e + 1; - upper = &upper_store; - } - denominator.assign_pow10(exp10); - denominator <<= shift; - } else if (exp10 < 0) { - numerator.assign_pow10(-exp10); - lower.assign(numerator); - if (is_predecessor_closer) { - upper_store.assign(numerator); - upper_store <<= 1; - upper = &upper_store; - } - numerator *= value.f; - numerator <<= shift; - denominator = 1; - denominator <<= shift - value.e; - } else { - numerator = value.f; - numerator <<= shift; - denominator.assign_pow10(exp10); - denominator <<= shift - value.e; - lower = 1; - if (is_predecessor_closer) { - upper_store = 1ULL << 1; - upper = &upper_store; - } - } - int even = static_cast((value.f & 1) == 0); - if (!upper) upper = &lower; - if ((flags & dragon::fixup) != 0) { - if (add_compare(numerator, *upper, denominator) + even <= 0) { - --exp10; - numerator *= 10; - if (num_digits < 0) { - lower *= 10; - if (upper != &lower) *upper *= 10; - } - } - if ((flags & dragon::fixed) != 0) adjust_precision(num_digits, exp10 + 1); - } - // Invariant: value == (numerator / denominator) * pow(10, exp10). - if (num_digits < 0) { - // Generate the shortest representation. - num_digits = 0; - char* data = buf.data(); - for (;;) { - int digit = numerator.divmod_assign(denominator); - bool low = compare(numerator, lower) - even < 0; // numerator <[=] lower. - // numerator + upper >[=] pow10: - bool high = add_compare(numerator, *upper, denominator) + even > 0; - data[num_digits++] = static_cast('0' + digit); - if (low || high) { - if (!low) { - ++data[num_digits - 1]; - } else if (high) { - int result = add_compare(numerator, numerator, denominator); - // Round half to even. - if (result > 0 || (result == 0 && (digit % 2) != 0)) ++data[num_digits - 1]; - } - buf.try_resize(to_unsigned(num_digits)); - exp10 -= num_digits - 1; - return; - } - numerator *= 10; - lower *= 10; - if (upper != &lower) *upper *= 10; - } - } - // Generate the given number of digits. - exp10 -= num_digits - 1; - if (num_digits == 0) { - denominator *= 10; - auto digit = add_compare(numerator, numerator, denominator) > 0 ? '1' : '0'; - buf.push_back(digit); - return; - } - buf.try_resize(to_unsigned(num_digits)); - for (int i = 0; i < num_digits - 1; ++i) { - int digit = numerator.divmod_assign(denominator); - buf[i] = static_cast('0' + digit); - numerator *= 10; - } - int digit = numerator.divmod_assign(denominator); - auto result = add_compare(numerator, numerator, denominator); - if (result > 0 || (result == 0 && (digit % 2) != 0)) { - if (digit == 9) { - const auto overflow = '0' + 10; - buf[num_digits - 1] = overflow; - // Propagate the carry. - for (int i = num_digits - 1; i > 0 && buf[i] == overflow; --i) { - buf[i] = '0'; - ++buf[i - 1]; - } - if (buf[0] == overflow) { - buf[0] = '1'; - ++exp10; - } - return; - } - ++digit; - } - buf[num_digits - 1] = static_cast('0' + digit); +constexpr auto fractional_part_rounding_thresholds(int index) -> uint32_t { + // For checking rounding thresholds. + // The kth entry is chosen to be the smallest integer such that the + // upper 32-bits of 10^(k+1) times it is strictly bigger than 5 * 10^k. + // It is equal to ceil(2^31 + 2^32/10^(k + 1)). + // These are stored in a string literal because we cannot have static arrays + // in constexpr functions and non-static ones are poorly optimized. + return U"\x9999999a\x828f5c29\x80418938\x80068db9\x8000a7c6\x800010c7" + U"\x800001ae\x8000002b"[index]; } template -FMT_CONSTEXPR20 auto format_float(Float value, int precision, float_specs specs, buffer& buf) - -> int { - // float is passed as double to reduce the number of instantiations. - static_assert(!std::is_same::value, ""); - FMT_ASSERT(value >= 0, "value is negative"); - auto converted_value = convert_float(value); - - const bool fixed = specs.format == float_format::fixed; - if (value <= 0) { // <= instead of == to silence a warning. - if (precision <= 0 || !fixed) { - buf.push_back('0'); - return 0; +FMT_CONSTEXPR20 auto format_float(Float value, int precision, + const format_specs& specs, bool binary32, + buffer& buf) -> int { + // float is passed as double to reduce the number of instantiations. + static_assert(!std::is_same::value, ""); + auto converted_value = convert_float(value); + + const bool fixed = specs.type() == presentation_type::fixed; + if (value == 0) { + if (precision <= 0 || !fixed) { + buf.push_back('0'); + return 0; + } + buf.try_resize(to_unsigned(precision)); + fill_n(buf.data(), precision, '0'); + return -precision; + } + + int exp = 0; + bool use_dragon = true; + unsigned dragon_flags = 0; + if (!is_fast_float() || is_constant_evaluated()) { + const auto inv_log2_10 = 0.3010299956639812; // 1 / log2(10) + using info = dragonbox::float_info; + const auto f = basic_fp(converted_value); + // Compute exp, an approximate power of 10, such that + // 10^(exp - 1) <= value < 10^exp or 10^exp <= value < 10^(exp + 1). + // This is based on log10(value) == log2(value) / log2(10) and approximation + // of log2(value) by e + num_fraction_bits idea from double-conversion. + auto e = (f.e + count_digits<1>(f.f) - 1) * inv_log2_10 - 1e-10; + exp = static_cast(e); + if (e > exp) ++exp; // Compute ceil. + dragon_flags = dragon::fixup; + } else { + // Extract significand bits and exponent bits. + using info = dragonbox::float_info; + auto br = bit_cast(static_cast(value)); + + const uint64_t significand_mask = + (static_cast(1) << num_significand_bits()) - 1; + uint64_t significand = (br & significand_mask); + int exponent = static_cast((br & exponent_mask()) >> + num_significand_bits()); + + if (exponent != 0) { // Check if normal. + exponent -= exponent_bias() + num_significand_bits(); + significand |= + (static_cast(1) << num_significand_bits()); + significand <<= 1; + } else { + // Normalize subnormal inputs. + FMT_ASSERT(significand != 0, "zeros should not appear here"); + int shift = countl_zero(significand); + FMT_ASSERT(shift >= num_bits() - num_significand_bits(), + ""); + shift -= (num_bits() - num_significand_bits() - 2); + exponent = (std::numeric_limits::min_exponent - + num_significand_bits()) - + shift; + significand <<= shift; + } + + // Compute the first several nonzero decimal significand digits. + // We call the number we get the first segment. + const int k = info::kappa - dragonbox::floor_log10_pow2(exponent); + exp = -k; + const int beta = exponent + dragonbox::floor_log2_pow10(k); + uint64_t first_segment; + bool has_more_segments; + int digits_in_the_first_segment; + { + const auto r = dragonbox::umul192_upper128( + significand << beta, dragonbox::get_cached_power(k)); + first_segment = r.high(); + has_more_segments = r.low() != 0; + + // The first segment can have 18 ~ 19 digits. + if (first_segment >= 1000000000000000000ULL) { + digits_in_the_first_segment = 19; + } else { + // When it is of 18-digits, we align it to 19-digits by adding a bogus + // zero at the end. + digits_in_the_first_segment = 18; + first_segment *= 10; + } + } + + // Compute the actual number of decimal digits to print. + if (fixed) adjust_precision(precision, exp + digits_in_the_first_segment); + + // Use Dragon4 only when there might be not enough digits in the first + // segment. + if (digits_in_the_first_segment > precision) { + use_dragon = false; + + if (precision <= 0) { + exp += digits_in_the_first_segment; + + if (precision < 0) { + // Nothing to do, since all we have are just leading zeros. + buf.try_resize(0); + } else { + // We may need to round-up. + buf.try_resize(1); + if ((first_segment | static_cast(has_more_segments)) > + 5000000000000000000ULL) { + buf[0] = '1'; + } else { + buf[0] = '0'; + } } - buf.try_resize(to_unsigned(precision)); - fill_n(buf.data(), precision, '0'); - return -precision; - } + } // precision <= 0 + else { + exp += digits_in_the_first_segment - precision; + + // When precision > 0, we divide the first segment into three + // subsegments, each with 9, 9, and 0 ~ 1 digits so that each fits + // in 32-bits which usually allows faster calculation than in + // 64-bits. Since some compiler (e.g. MSVC) doesn't know how to optimize + // division-by-constant for large 64-bit divisors, we do it here + // manually. The magic number 7922816251426433760 below is equal to + // ceil(2^(64+32) / 10^10). + const uint32_t first_subsegment = static_cast( + dragonbox::umul128_upper64(first_segment, 7922816251426433760ULL) >> + 32); + const uint64_t second_third_subsegments = + first_segment - first_subsegment * 10000000000ULL; + + uint64_t prod; + uint32_t digits; + bool should_round_up; + int number_of_digits_to_print = min_of(precision, 9); + + // Print a 9-digits subsegment, either the first or the second. + auto print_subsegment = [&](uint32_t subsegment, char* buffer) { + int number_of_digits_printed = 0; + + // If we want to print an odd number of digits from the subsegment, + if ((number_of_digits_to_print & 1) != 0) { + // Convert to 64-bit fixed-point fractional form with 1-digit + // integer part. The magic number 720575941 is a good enough + // approximation of 2^(32 + 24) / 10^8; see + // https://jk-jeon.github.io/posts/2022/12/fixed-precision-formatting/#fixed-length-case + // for details. + prod = ((subsegment * static_cast(720575941)) >> 24) + 1; + digits = static_cast(prod >> 32); + *buffer = static_cast('0' + digits); + number_of_digits_printed++; + } + // If we want to print an even number of digits from the + // first_subsegment, + else { + // Convert to 64-bit fixed-point fractional form with 2-digits + // integer part. The magic number 450359963 is a good enough + // approximation of 2^(32 + 20) / 10^7; see + // https://jk-jeon.github.io/posts/2022/12/fixed-precision-formatting/#fixed-length-case + // for details. + prod = ((subsegment * static_cast(450359963)) >> 20) + 1; + digits = static_cast(prod >> 32); + write2digits(buffer, digits); + number_of_digits_printed += 2; + } + + // Print all digit pairs. + while (number_of_digits_printed < number_of_digits_to_print) { + prod = static_cast(prod) * static_cast(100); + digits = static_cast(prod >> 32); + write2digits(buffer + number_of_digits_printed, digits); + number_of_digits_printed += 2; + } + }; - int exp = 0; - bool use_dragon = true; - unsigned dragon_flags = 0; - if (!is_fast_float()) { - const auto inv_log2_10 = 0.3010299956639812; // 1 / log2(10) - using info = dragonbox::float_info; - const auto f = basic_fp(converted_value); - // Compute exp, an approximate power of 10, such that - // 10^(exp - 1) <= value < 10^exp or 10^exp <= value < 10^(exp + 1). - // This is based on log10(value) == log2(value) / log2(10) and approximation - // of log2(value) by e + num_fraction_bits idea from double-conversion. - exp = static_cast(std::ceil((f.e + count_digits<1>(f.f) - 1) * inv_log2_10 - 1e-10)); - dragon_flags = dragon::fixup; - } else if (!is_constant_evaluated() && precision < 0) { - // Use Dragonbox for the shortest format. - if (specs.binary32) { - auto dec = dragonbox::to_decimal(static_cast(value)); - write(buffer_appender(buf), dec.significand); - return dec.exponent; + // Print first subsegment. + print_subsegment(first_subsegment, buf.data()); + + // Perform rounding if the first subsegment is the last subsegment to + // print. + if (precision <= 9) { + // Rounding inside the subsegment. + // We round-up if: + // - either the fractional part is strictly larger than 1/2, or + // - the fractional part is exactly 1/2 and the last digit is odd. + // We rely on the following observations: + // - If fractional_part >= threshold, then the fractional part is + // strictly larger than 1/2. + // - If the MSB of fractional_part is set, then the fractional part + // must be at least 1/2. + // - When the MSB of fractional_part is set, either + // second_third_subsegments being nonzero or has_more_segments + // being true means there are further digits not printed, so the + // fractional part is strictly larger than 1/2. + if (precision < 9) { + uint32_t fractional_part = static_cast(prod); + should_round_up = + fractional_part >= fractional_part_rounding_thresholds( + 8 - number_of_digits_to_print) || + ((fractional_part >> 31) & + ((digits & 1) | (second_third_subsegments != 0) | + has_more_segments)) != 0; + } + // Rounding at the subsegment boundary. + // In this case, the fractional part is at least 1/2 if and only if + // second_third_subsegments >= 5000000000ULL, and is strictly larger + // than 1/2 if we further have either second_third_subsegments > + // 5000000000ULL or has_more_segments == true. + else { + should_round_up = second_third_subsegments > 5000000000ULL || + (second_third_subsegments == 5000000000ULL && + ((digits & 1) != 0 || has_more_segments)); + } } - auto dec = dragonbox::to_decimal(static_cast(value)); - write(buffer_appender(buf), dec.significand); - return dec.exponent; - } else { - // Use Grisu + Dragon4 for the given precision: - // https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf. - const int min_exp = -60; // alpha in Grisu. - int cached_exp10 = 0; // K in Grisu. - fp normalized = normalize(fp(converted_value)); - const auto cached_pow = - get_cached_power(min_exp - (normalized.e + fp::num_significand_bits), cached_exp10); - normalized = normalized * cached_pow; - gen_digits_handler handler{buf.data(), 0, precision, -cached_exp10, fixed}; - if (grisu_gen_digits(normalized, 1, exp, handler) != digits::error && - !is_constant_evaluated()) { - exp += handler.exp10; - buf.try_resize(to_unsigned(handler.size)); - use_dragon = false; - } else { - exp += handler.size - cached_exp10 - 1; - precision = handler.precision; + // Otherwise, print the second subsegment. + else { + // Compilers are not aware of how to leverage the maximum value of + // second_third_subsegments to find out a better magic number which + // allows us to eliminate an additional shift. 1844674407370955162 = + // ceil(2^64/10) < ceil(2^64*(10^9/(10^10 - 1))). + const uint32_t second_subsegment = + static_cast(dragonbox::umul128_upper64( + second_third_subsegments, 1844674407370955162ULL)); + const uint32_t third_subsegment = + static_cast(second_third_subsegments) - + second_subsegment * 10; + + number_of_digits_to_print = precision - 9; + print_subsegment(second_subsegment, buf.data() + 9); + + // Rounding inside the subsegment. + if (precision < 18) { + // The condition third_subsegment != 0 implies that the segment was + // of 19 digits, so in this case the third segment should be + // consisting of a genuine digit from the input. + uint32_t fractional_part = static_cast(prod); + should_round_up = + fractional_part >= fractional_part_rounding_thresholds( + 8 - number_of_digits_to_print) || + ((fractional_part >> 31) & + ((digits & 1) | (third_subsegment != 0) | + has_more_segments)) != 0; + } + // Rounding at the subsegment boundary. + else { + // In this case, the segment must be of 19 digits, thus + // the third subsegment should be consisting of a genuine digit from + // the input. + should_round_up = third_subsegment > 5 || + (third_subsegment == 5 && + ((digits & 1) != 0 || has_more_segments)); + } } - } - if (use_dragon) { - auto f = basic_fp(); - bool is_predecessor_closer = - specs.binary32 ? f.assign(static_cast(value)) : f.assign(converted_value); - if (is_predecessor_closer) dragon_flags |= dragon::predecessor_closer; - if (fixed) dragon_flags |= dragon::fixed; - // Limit precision to the maximum possible number of significant digits in - // an IEEE754 double because we don't need to generate zeros. - const int max_double_digits = 767; - if (precision > max_double_digits) precision = max_double_digits; - format_dragon(f, dragon_flags, precision, buf, exp); - } - if (!fixed && !specs.showpoint) { - // Remove trailing zeros. - auto num_digits = buf.size(); - while (num_digits > 0 && buf[num_digits - 1] == '0') { - --num_digits; - ++exp; + + // Round-up if necessary. + if (should_round_up) { + ++buf[precision - 1]; + for (int i = precision - 1; i > 0 && buf[i] > '9'; --i) { + buf[i] = '0'; + ++buf[i - 1]; + } + if (buf[0] > '9') { + buf[0] = '1'; + if (fixed) + buf[precision++] = '0'; + else + ++exp; + } } - buf.try_resize(num_digits); - } - return exp; + buf.try_resize(to_unsigned(precision)); + } + } // if (digits_in_the_first_segment > precision) + else { + // Adjust the exponent for its use in Dragon4. + exp += digits_in_the_first_segment - 1; + } + } + if (use_dragon) { + auto f = basic_fp(); + bool is_predecessor_closer = binary32 ? f.assign(static_cast(value)) + : f.assign(converted_value); + if (is_predecessor_closer) dragon_flags |= dragon::predecessor_closer; + if (fixed) dragon_flags |= dragon::fixed; + // Limit precision to the maximum possible number of significant digits in + // an IEEE754 double because we don't need to generate zeros. + const int max_double_digits = 767; + if (precision > max_double_digits) precision = max_double_digits; + format_dragon(f, dragon_flags, precision, buf, exp); + } + if (!fixed && !specs.alt()) { + // Remove trailing zeros. + auto num_digits = buf.size(); + while (num_digits > 0 && buf[num_digits - 1] == '0') { + --num_digits; + ++exp; + } + buf.try_resize(num_digits); + } + return exp; +} + +// Numbers with exponents greater or equal to the returned value will use +// the exponential notation. +template constexpr auto exp_upper() -> int { + return std::numeric_limits::digits10 != 0 + ? min_of(16, std::numeric_limits::digits10 + 1) + : 16; } -template ::value)> -FMT_CONSTEXPR20 auto write(OutputIt out, - T value, - basic_format_specs specs, +template +FMT_CONSTEXPR20 auto write_float(OutputIt out, T value, format_specs specs, + locale_ref loc) -> OutputIt { + // Use signbit because value < 0 is false for NaN. + sign s = detail::signbit(value) ? sign::minus : specs.sign(); + + if (!detail::isfinite(value)) + return write_nonfinite(out, detail::isnan(value), specs, s); + + if (specs.align() == align::numeric && s != sign::none) { + *out++ = detail::getsign(s); + s = sign::none; + if (specs.width != 0) --specs.width; + } + + constexpr int exp_upper = detail::exp_upper(); + int precision = specs.precision; + if (precision < 0) { + if (specs.type() != presentation_type::none) { + precision = 6; + } else if (is_fast_float::value && !is_constant_evaluated()) { + // Use Dragonbox for the shortest format. + using floaty = conditional_t= sizeof(double), double, float>; + auto dec = dragonbox::to_decimal(static_cast(value)); + return write_float(out, dec, specs, s, exp_upper, loc); + } + } + + memory_buffer buffer; + if (specs.type() == presentation_type::hexfloat) { + if (s != sign::none) buffer.push_back(detail::getsign(s)); + format_hexfloat(convert_float(value), specs, buffer); + return write_bytes(out, {buffer.data(), buffer.size()}, + specs); + } + + if (specs.type() == presentation_type::exp) { + if (precision == max_value()) + report_error("number is too big"); + else + ++precision; + if (specs.precision != 0) specs.set_alt(); + } else if (specs.type() == presentation_type::fixed) { + if (specs.precision != 0) specs.set_alt(); + } else if (precision == 0) { + precision = 1; + } + int exp = format_float(convert_float(value), precision, specs, + std::is_same(), buffer); + + specs.precision = precision; + auto f = big_decimal_fp{buffer.data(), static_cast(buffer.size()), exp}; + return write_float(out, f, specs, s, exp_upper, loc); +} + +template ::value)> +FMT_CONSTEXPR20 auto write(OutputIt out, T value, format_specs specs, locale_ref loc = {}) -> OutputIt { - if (const_check(!is_supported_floating_point(value))) return out; - float_specs fspecs = parse_float_type_spec(specs); - fspecs.sign = specs.sign; - if (detail::signbit(value)) { // value < 0 is false for NaN so use signbit. - fspecs.sign = sign::minus; - value = -value; - } else if (fspecs.sign == sign::minus) { - fspecs.sign = sign::none; - } - - if (!detail::isfinite(value)) return write_nonfinite(out, detail::isnan(value), specs, fspecs); - - if (specs.align == align::numeric && fspecs.sign) { - auto it = reserve(out, 1); - *it++ = detail::sign(fspecs.sign); - out = base_iterator(out, it); - fspecs.sign = sign::none; - if (specs.width != 0) --specs.width; - } - - memory_buffer buffer; - if (fspecs.format == float_format::hex) { - if (fspecs.sign) buffer.push_back(detail::sign(fspecs.sign)); - snprintf_float(convert_float(value), specs.precision, fspecs, buffer); - return write_bytes(out, {buffer.data(), buffer.size()}, specs); - } - int precision = - specs.precision >= 0 || specs.type == presentation_type::none ? specs.precision : 6; - if (fspecs.format == float_format::exp) { - if (precision == max_value()) - throw_format_error("number is too big"); - else - ++precision; - } else if (fspecs.format != float_format::fixed && precision == 0) { - precision = 1; - } - if (const_check(std::is_same())) fspecs.binary32 = true; - int exp = format_float(convert_float(value), precision, fspecs, buffer); - fspecs.precision = precision; - auto f = big_decimal_fp{buffer.data(), static_cast(buffer.size()), exp}; - return write_float(out, f, specs, fspecs, loc); + return specs.localized() && write_loc(out, value, specs, loc) + ? out + : write_float(out, value, specs, loc); } -template ::value)> +template ::value)> FMT_CONSTEXPR20 auto write(OutputIt out, T value) -> OutputIt { - if (is_constant_evaluated()) return write(out, value, basic_format_specs()); - if (const_check(!is_supported_floating_point(value))) return out; + if (is_constant_evaluated()) return write(out, value, format_specs()); - auto fspecs = float_specs(); - if (detail::signbit(value)) { - fspecs.sign = sign::minus; - value = -value; - } + auto s = detail::signbit(value) ? sign::minus : sign::none; - constexpr auto specs = basic_format_specs(); - using floaty = conditional_t::value, double, T>; - using uint = typename dragonbox::float_info::carrier_uint; - uint mask = exponent_mask(); - if ((bit_cast(value) & mask) == mask) - return write_nonfinite(out, std::isnan(value), specs, fspecs); + constexpr auto specs = format_specs(); + using floaty = conditional_t= sizeof(double), double, float>; + using floaty_uint = typename dragonbox::float_info::carrier_uint; + floaty_uint mask = exponent_mask(); + if ((bit_cast(value) & mask) == mask) + return write_nonfinite(out, std::isnan(value), specs, s); - auto dec = dragonbox::to_decimal(static_cast(value)); - return write_float(out, dec, specs, fspecs, {}); + auto dec = dragonbox::to_decimal(static_cast(value)); + return write_float(out, dec, specs, s, exp_upper(), {}); } -template ::value && !is_fast_float::value)> +template ::value && + !is_fast_float::value)> inline auto write(OutputIt out, T value) -> OutputIt { - return write(out, value, basic_format_specs()); + return write(out, value, format_specs()); } template -auto write(OutputIt out, monostate, basic_format_specs = {}, locale_ref = {}) -> OutputIt { - FMT_ASSERT(false, ""); - return out; +auto write(OutputIt out, monostate, format_specs = {}, locale_ref = {}) + -> OutputIt { + FMT_ASSERT(false, ""); + return out; } template -FMT_CONSTEXPR auto write(OutputIt out, basic_string_view value) -> OutputIt { - auto it = reserve(out, value.size()); - it = copy_str_noinline(value.begin(), value.end(), it); - return base_iterator(out, it); +FMT_CONSTEXPR auto write(OutputIt out, basic_string_view value) + -> OutputIt { + return copy_noinline(value.begin(), value.end(), out); } -template ::value)> +template ::value)> constexpr auto write(OutputIt out, const T& value) -> OutputIt { - return write(out, to_string_view(value)); + return write(out, to_string_view(value)); } // FMT_ENABLE_IF() condition separated to workaround an MSVC bug. -template ::value && !std::is_same::value && - mapped_type_constant>::value != - type::custom_type, - FMT_ENABLE_IF(check)> +template < + typename Char, typename OutputIt, typename T, + bool check = std::is_enum::value && !std::is_same::value && + mapped_type_constant::value != type::custom_type, + FMT_ENABLE_IF(check)> FMT_CONSTEXPR auto write(OutputIt out, T value) -> OutputIt { - return write(out, static_cast>(value)); + return write(out, static_cast>(value)); } -template ::value)> -FMT_CONSTEXPR auto write(OutputIt out, - T value, - const basic_format_specs& specs = {}, +template ::value)> +FMT_CONSTEXPR auto write(OutputIt out, T value, const format_specs& specs = {}, locale_ref = {}) -> OutputIt { - return specs.type != presentation_type::none && specs.type != presentation_type::string - ? write(out, value ? 1 : 0, specs, {}) - : write_bytes(out, value ? "true" : "false", specs); + return specs.type() != presentation_type::none && + specs.type() != presentation_type::string + ? write(out, value ? 1 : 0, specs, {}) + : write_bytes(out, value ? "true" : "false", specs); } template FMT_CONSTEXPR auto write(OutputIt out, Char value) -> OutputIt { - auto it = reserve(out, 1); - *it++ = value; - return base_iterator(out, it); + auto it = reserve(out, 1); + *it++ = value; + return base_iterator(out, it); } template -FMT_CONSTEXPR_CHAR_TRAITS auto write(OutputIt out, const Char* value) -> OutputIt { - if (!value) { - throw_format_error("string pointer is null"); - } else { - out = write(out, basic_string_view(value)); - } - return out; +FMT_CONSTEXPR20 auto write(OutputIt out, const Char* value) -> OutputIt { + if (value) return write(out, basic_string_view(value)); + report_error("string pointer is null"); + return out; } -template ::value)> -auto write(OutputIt out, - const T* value, - const basic_format_specs& specs = {}, +template ::value)> +auto write(OutputIt out, const T* value, const format_specs& specs = {}, locale_ref = {}) -> OutputIt { - check_pointer_type_spec(specs.type, error_handler()); - return write_ptr(out, bit_cast(value), &specs); -} - -// A write overload that handles implicit conversions. -template > -FMT_CONSTEXPR auto write(OutputIt out, const T& value) - -> enable_if_t::value && !is_string::value && - !is_floating_point::value && !std::is_same::value && - !std::is_same().map(value))>::value, - OutputIt> { - return write(out, arg_mapper().map(value)); -} - -template > -FMT_CONSTEXPR auto write(OutputIt out, const T& value) - -> enable_if_t::value == type::custom_type, OutputIt> { - using formatter_type = - conditional_t::value, - typename Context::template formatter_type, fallback_formatter>; - auto ctx = Context(out, {}, {}); - return formatter_type().format(value, ctx); + return write_ptr(out, bit_cast(value), &specs); } +template ::value == + type::custom_type && + !std::is_fundamental::value)> +FMT_CONSTEXPR auto write(OutputIt out, const T& value) -> OutputIt { + auto f = formatter(); + auto parse_ctx = parse_context({}); + f.parse(parse_ctx); + auto ctx = basic_format_context(out, {}, {}); + return f.format(value, ctx); +} + +template +using is_builtin = + bool_constant::value || FMT_BUILTIN_TYPES>; + // An argument visitor that formats the argument and writes it via the output // iterator. It's a class and not a generic lambda for compatibility with C++11. -template -struct default_arg_formatter { - using iterator = buffer_appender; - using context = buffer_context; +template struct default_arg_formatter { + using context = buffered_context; - iterator out; - basic_format_args args; - locale_ref loc; + basic_appender out; - template - auto operator()(T value) -> iterator { - return write(out, value); - } - auto operator()(typename basic_format_arg::handle h) -> iterator { - basic_format_parse_context parse_ctx({}); - context format_ctx(out, args, loc); - h.format(parse_ctx, format_ctx); - return format_ctx.out(); - } -}; - -template -struct arg_formatter { - using iterator = buffer_appender; - using context = buffer_context; + void operator()(monostate) { report_error("argument not found"); } - iterator out; - const basic_format_specs& specs; - locale_ref locale; + template ::value)> + void operator()(T value) { + write(out, value); + } - template - FMT_CONSTEXPR FMT_INLINE auto operator()(T value) -> iterator { - return detail::write(out, value, specs, locale); - } - auto operator()(typename basic_format_arg::handle) -> iterator { - // User-defined types are handled separately because they require access - // to the parse context. - return out; - } + template ::value)> + void operator()(T) { + FMT_ASSERT(false, ""); + } + + void operator()(typename basic_format_arg::handle h) { + // Use a null locale since the default format must be unlocalized. + auto parse_ctx = parse_context({}); + auto format_ctx = context(out, {}, {}); + h.format(parse_ctx, format_ctx); + } }; -template -struct custom_formatter { - basic_format_parse_context& parse_ctx; - buffer_context& ctx; +template struct arg_formatter { + basic_appender out; + const format_specs& specs; + FMT_NO_UNIQUE_ADDRESS locale_ref locale; - void operator()(typename basic_format_arg>::handle h) const { - h.format(parse_ctx, ctx); - } - template - void operator()(T) const {} -}; + template ::value)> + FMT_CONSTEXPR FMT_INLINE void operator()(T value) { + detail::write(out, value, specs, locale); + } -template -using is_integer = bool_constant::value && !std::is_same::value && - !std::is_same::value && !std::is_same::value>; - -template -class width_checker { -public: - explicit FMT_CONSTEXPR width_checker(ErrorHandler& eh) - : handler_(eh) {} - - template ::value)> - FMT_CONSTEXPR auto operator()(T value) -> unsigned long long { - if (is_negative(value)) handler_.on_error("negative width"); - return static_cast(value); - } - - template ::value)> - FMT_CONSTEXPR auto operator()(T) -> unsigned long long { - handler_.on_error("width is not integer"); - return 0; - } + template ::value)> + void operator()(T) { + FMT_ASSERT(false, ""); + } -private: - ErrorHandler& handler_; + void operator()(typename basic_format_arg>::handle) { + // User-defined types are handled separately because they require access + // to the parse context. + } }; -template -class precision_checker { -public: - explicit FMT_CONSTEXPR precision_checker(ErrorHandler& eh) - : handler_(eh) {} - - template ::value)> - FMT_CONSTEXPR auto operator()(T value) -> unsigned long long { - if (is_negative(value)) handler_.on_error("negative precision"); - return static_cast(value); - } - - template ::value)> - FMT_CONSTEXPR auto operator()(T) -> unsigned long long { - handler_.on_error("precision is not integer"); - return 0; - } - -private: - ErrorHandler& handler_; +struct dynamic_spec_getter { + template ::value)> + FMT_CONSTEXPR auto operator()(T value) -> unsigned long long { + return is_negative(value) ? ~0ull : static_cast(value); + } + + template ::value)> + FMT_CONSTEXPR auto operator()(T) -> unsigned long long { + report_error("width/precision is not integer"); + return 0; + } }; -template