Show correct line numbers in generated source lines for common tests #1834
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For CUDA/HIP and DPCPP, we create separate copies of the source files using configure_file(...) to apply different CMake file properties to them. For the compiler to report error messages with the correct source file name, this adds a #line preprocessor statement to the top of these generated files.
ginkgo-bot
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upsj
commented
Apr 20, 2025
| // | ||
| // SPDX-License-Identifier: BSD-3-Clause | ||
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| /*@GKO_PREPROCESSOR_FILENAME_HELPER@*/ |
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I am using this weird comment structure to make sure both the original file and the generated file are valid C++ code. The ´#line` directive can start after a comment, but afaik it can't end with a comment, so that needs to be in the next line.
pratikvn
reviewed
Apr 20, 2025
| // | ||
| // SPDX-License-Identifier: BSD-3-Clause | ||
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| /*@GKO_PREPROCESSOR_FILENAME_HELPER@*/ |
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Maybe I am missing something, wouldn't this be now after preprocessing be /*/*#line 5 .... */*/ ?
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Okay, the above comment clarifies it. :)
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The actual string will be
/**/
#line 5 "file.cpp"
/**/
pratikvn
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Apr 20, 2025
upsj
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For CUDA/HIP and DPCPP, we create separate copies of the source files using configure_file(...) to apply different CMake file properties to them. For the compiler to report error messages with the correct source file name, this adds a #line preprocessor statement to the top of these generated files.