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Laboratory work III

Homework

Представьте, что вы стажер в компании "Formatter Inc.".

Задание 1

Вам поручили перейти на систему автоматизированной сборки CMake. Исходные файлы находятся в директории formatter_lib. В этой директории находятся файлы для статической библиотеки formatter. Создайте CMakeList.txt в директории formatter_lib, с помощью которого можно будет собирать статическую библиотеку formatter.

$cmake --version

cmake version 3.22.1
CMake suite maintained and supported by Kitware (kitware.com/cmake).

formatter_lib/CMakeLists.txt:

make_minimum_required(VERSION 3.22) 
project(formatter_lib)
set(SOURCE_LIB formatter.cpp formatter.h)       
add_library(formatter_lib STATIC ${SOURCE_LIB}) 

$cmake -H. -B_build

-- The C compiler identification is GNU 10.5.0
-- The CXX compiler identification is GNU 10.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/zarok/projects/tp_labs/tp_projects/lab03/formatter_lib/_build

$cmake --build ./_build

[ 50%] Building CXX object CMakeFiles/formatter_lib.dir/formatter.cpp.o
[100%] Linking CXX static library libformatter_lib.a
[100%] Built target formatter_lib

Задание 2

У компании "Formatter Inc." есть перспективная библиотека, которая является расширением предыдущей библиотеки. Т.к. вы уже овладели навыком созданием CMakeList.txt для статической библиотеки formatter, ваш руководитель поручает заняться созданием CMakeList.txt для библиотеки formatter_ex, которая в свою очередь использует библиотеку formatter.

$ cd ..
$cd formatter_ex_lib/

formatter_ex_lib/CMakeLists.txt:

cmake_minimum_required(VERSION 3.22)
project(formatter_ex_lib)
set(SOURCE_LIB formatter_ex.cpp)
add_library(formatter_ex_lib STATIC ${SOURCE_LIB})
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../formatter_lib formatter_lib)
target_link_libraries(formatter_ex_lib PUBLIC formatter_lib)
target_include_directories(formatter_ex_lib PUBLIC
				"${CMAKE_CURRENT_SOURCE_DIR}"
				"${CMAKE_CURRENT_SOURCE_DIR}/../formatter_lib")

Задание 3

Конечно же ваша компания предоставляет примеры использования своих библиотек. Чтобы продемонстрировать как работать с библиотекой formatter_ex, вам необходимо создать два CMakeList.txt для двух простых приложений:

  • hello_world, которое использует библиотеку formatter_ex;
  • solver, приложение которое испольует статические библиотеки formatter_ex и solver_lib.
$cd ..
$cd hello_world_application/

hello_world_application/CMakeLists.txt:

make_minimum_required(VERSION 3.22) 
project(hello_world)				
set(SOURCE_EXE hello_world.cpp)			 
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../formatter_ex_lib/)
add_executable(main ${SOURCE_EXE})	
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../formatter_ex_lib/ formatter_ex_lib)
target_link_libraries(main formatter_ex_lib)


$cd ..
$cd solver_application/

solver_application/CMakeLists.txt:

cmake_minimum_required(VERSION 3.22)
project(solver)
set(SOURCE_EXE equation.cpp)
include_directories("${CMAKE_CURRENT_SOURCE_DIR}/../formatter_ex_lib/"
                                        "${CMAKE_CURRENT_SOURCE_DIR}/../solver_lib/")
add_executable(main ${SOURCE_EXE})      
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../formatter_ex_lib/ formatter_ex_lib)
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../solver_lib/ solver_lib)
target_link_libraries(main formatter_ex_lib solver_lib)


$cd ..
$cd solver_lib/

solver_lib/CMakeLists.txt:

cmake_minimum_required(VERSION 3.22)
project(solver_lib)
set(SOURCE_LIB solver.cpp solver.h)             
add_library(solver_lib STATIC ${SOURCE_LIB})

Компиляция

  • formatter_lib
$cmake -H. -B_build
$cmake --build ./_build

-- The C compiler identification is GNU 10.5.0
-- The CXX compiler identification is GNU 10.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/zarok/projects/tp_labs/tp_projects/lab03/formatter_lib/_build

[ 50%] Building CXX object CMakeFiles/formatter_lib.dir/formatter.cpp.o
[100%] Linking CXX static library libformatter_lib.a
[100%] Built target formatter_lib
  • formatter_ex_lib
$cmake -H. -B_build
$cmake --build ./_build

-- The C compiler identification is GNU 10.5.0
-- The CXX compiler identification is GNU 10.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/zarok/projects/tp_labs/tp_projects/lab03/formatter_ex_lib/_build

zarok@ubuntu:~/projects/tp_labs/tp_projects/lab03/formatter_ex_lib$ cmake --build ./_build
[ 25%] Building CXX object formatter_lib/CMakeFiles/formatter_lib.dir/formatter.cpp.o
[ 50%] Linking CXX static library libformatter_lib.a
[ 50%] Built target formatter_lib
[ 75%] Building CXX object CMakeFiles/formatter_ex_lib.dir/formatter_ex.cpp.o
[100%] Linking CXX static library libformatter_ex_lib.a
[100%] Built target formatter_ex_lib
  • hello_world_application
$cmake -H. -B_build
$cmake --build ./_build

-- The C compiler identification is GNU 10.5.0
-- The CXX compiler identification is GNU 10.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/zarok/projects/tp_labs/tp_projects/lab03/hello_world_application/_build

zarok@ubuntu:~/projects/tp_labs/tp_projects/lab03/hello_world_application$ cmake --build ./_build
[ 16%] Building CXX object formatter_ex_lib/formatter_lib/CMakeFiles/formatter_lib.dir/formatter.cpp.o
[ 33%] Linking CXX static library libformatter_lib.a
[ 33%] Built target formatter_lib
[ 50%] Building CXX object formatter_ex_lib/CMakeFiles/formatter_ex_lib.dir/formatter_ex.cpp.o
[ 66%] Linking CXX static library libformatter_ex_lib.a
[ 66%] Built target formatter_ex_lib
[ 83%] Building CXX object CMakeFiles/main.dir/hello_world.cpp.o
[100%] Linking CXX executable main
[100%] Built target main
  • solver_lib
$cmake -H. -B_build
$cmake --build ./_build

-- The C compiler identification is GNU 10.5.0
-- The CXX compiler identification is GNU 10.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/zarok/projects/tp_labs/tp_projects/lab03/solver_lib/_build

Consolidate compiler generated dependencies of target solver_lib
[ 50%] Building CXX object CMakeFiles/solver_lib.dir/solver.cpp.o
[100%] Linking CXX static library libsolver_lib.a
[100%] Built target solver_lib
  • solver_application
$cmake -H. -B_build
$cmake --build ./_build

-- The C compiler identification is GNU 10.5.0
-- The CXX compiler identification is GNU 10.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/zarok/projects/tp_labs/tp_projects/lab03/solver_application/_build

zarok@ubuntu:~/projects/tp_labs/tp_projects/lab03/solver_application$ cmake --build ./_build
[ 12%] Building CXX object solver_lib/CMakeFiles/solver_lib.dir/solver.cpp.o
[ 25%] Linking CXX static library libsolver_lib.a
[ 25%] Built target solver_lib
[ 37%] Building CXX object formatter_ex_lib/formatter_lib/CMakeFiles/formatter_lib.dir/formatter.cpp.o
[ 50%] Linking CXX static library libformatter_lib.a
[ 50%] Built target formatter_lib
[ 62%] Building CXX object formatter_ex_lib/CMakeFiles/formatter_ex_lib.dir/formatter_ex.cpp.o
[ 75%] Linking CXX static library libformatter_ex_lib.a
[ 75%] Built target formatter_ex_lib
[ 87%] Building CXX object CMakeFiles/main.dir/equation.cpp.o
[100%] Linking CXX executable main
[100%] Built target main

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