In CMake, you can define the output directory of coverage files by setting the CMAKE_BINARY_DIR variable to the desired directory path. This can be done in the CMakeLists.txt file by adding the following line:
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set(CMAKE_BINARY_DIR ${CMAKE_SOURCE_DIR}/coverage_files)
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This will direct all the coverage files to be generated in the specified directory. Additionally, you can also specify the output directory for individual targets by using the set_target_properties command. For example, to set the output directory for a target named my_target, you can add the following line:
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set_target_properties(my_target PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/my_target)
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By setting the output directory for coverage files in CMake, you can easily organize and access the generated files for better analysis and reporting.
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What is an output directory in cmake?
An output directory in cmake is the location where the built executable files, libraries, and other outputs of a CMake project are stored. When the project is built, CMake will create the necessary output files and place them in the specified output directory. This can help keep the project organized and make it easier to manage and distribute the built files.
How to specify a relative path for the output directory in cmake?
To specify a relative path for the output directory in CMake, you can use the CMAKE_RUNTIME_OUTPUT_DIRECTORY, CMAKE_LIBRARY_OUTPUT_DIRECTORY, or CMAKE_ARCHIVE_OUTPUT_DIRECTORY variables.
Here's an example of how you can specify a relative path for the output directory in CMake:
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin) set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib) set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib) |
This will set the output directories for the executables, shared libraries, and static libraries to be relative to the binary directory of your project.
You can also customize the output directory based on the build type by using generator expressions like ${CMAKE_BUILD_TYPE}. For example:
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin/${CMAKE_BUILD_TYPE}) set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib/${CMAKE_BUILD_TYPE}) set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib/${CMAKE_BUILD_TYPE}) |
This will create a separate output directory for each build type (e.g., Debug, Release) within the bin and lib directories.
How to create a separate output directory for coverage files in cmake?
To create a separate output directory for coverage files in CMake, you can use the CMAKE_RUNTIME_OUTPUT_DIRECTORY and CTEST_BINARY_DIRECTORY variables to specify the output directory for the coverage files.
Here's an example of how you can set up a separate output directory for coverage files in CMake:
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# Set the output directory for coverage files set(COVERAGE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/coverage) # Set the runtime output directory set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${COVERAGE_OUTPUT_DIRECTORY}) # Set the binary directory for CTest set(CTEST_BINARY_DIRECTORY ${COVERAGE_OUTPUT_DIRECTORY}) |
You can place these commands in your CMakeLists.txt file before any targets are defined. This will ensure that all coverage files generated during compilation or testing will be placed in the specified output directory.
