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Improvements detection of features, part 3. CMake fixes... meh.
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HedgehogInTheCPP
parent
ef2c7e6973
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2e86d4f511
140
CMakeLists.txt
140
CMakeLists.txt
@ -1,21 +1,26 @@
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cmake_minimum_required(VERSION 3.14)
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project(fast_float VERSION 8.2.10 LANGUAGES CXX)
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# C++ standard used by the project.
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# fast_float itself requires C++11, while some tests/features use newer standards.
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set(FASTFLOAT_CXX_STANDARD 11 CACHE STRING "the C++ standard to use for fastfloat")
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set(CMAKE_CXX_STANDARD ${FASTFLOAT_CXX_STANDARD})
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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option(FASTFLOAT_TEST "Enable tests" OFF)
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if(FASTFLOAT_TEST)
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enable_testing()
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add_subdirectory(tests)
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else(FASTFLOAT_TEST)
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else()
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message(STATUS "Tests are disabled. Set FASTFLOAT_TEST to ON to run tests.")
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endif(FASTFLOAT_TEST)
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endif()
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option(FASTFLOAT_SANITIZE "Sanitize addresses" OFF)
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if (NOT CMAKE_BUILD_TYPE)
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if(NOT CMAKE_BUILD_TYPE)
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if(FASTFLOAT_SANITIZE)
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set(CMAKE_BUILD_TYPE Debug CACHE STRING "Choose the type of build." FORCE)
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else()
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@ -32,57 +37,132 @@ endif()
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add_library(fast_float INTERFACE)
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option(FASTFLOAT_BENCHMARKS "Enable benchmarks" OFF)
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if(FASTFLOAT_BENCHMARKS)
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add_subdirectory(benchmarks)
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else(FASTFLOAT_BENCHMARKS)
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else()
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message(STATUS "Benchmarks are disabled. Set FASTFLOAT_BENCHMARKS to ON to build benchmarks (assumes C++17).")
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endif(FASTFLOAT_BENCHMARKS)
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endif()
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add_library(FastFloat::fast_float ALIAS fast_float)
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target_include_directories(
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fast_float
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INTERFACE
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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)
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target_compile_features(fast_float INTERFACE cxx_std_11)
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if(FASTFLOAT_SANITIZE)
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target_compile_options(fast_float INTERFACE -fsanitize=address -fno-omit-frame-pointer -fsanitize=undefined -fno-sanitize-recover=all)
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target_link_libraries(fast_float INTERFACE -fsanitize=address -fno-omit-frame-pointer -fsanitize=undefined -fno-sanitize-recover=all)
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if (CMAKE_COMPILER_IS_GNUCC)
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target_link_libraries(fast_float INTERFACE -fuse-ld=gold)
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if(MSVC)
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target_compile_options(
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fast_float
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INTERFACE
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/fsanitize=address
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)
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elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
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target_compile_options(
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fast_float
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INTERFACE
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-fsanitize=address
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-fno-omit-frame-pointer
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-fsanitize=undefined
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-fno-sanitize-recover=all
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)
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target_link_libraries(
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fast_float
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INTERFACE
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-fsanitize=address
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-fno-omit-frame-pointer
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-fsanitize=undefined
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-fno-sanitize-recover=all
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)
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if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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target_link_libraries(fast_float INTERFACE -fuse-ld=gold)
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endif()
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endif()
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endif()
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target_compile_options(fast_float INTERFACE $<$<AND:$<CXX_COMPILER_ID:MSVC>,$<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,19.10>>:/permissive->)
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if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC"
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AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.10)
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target_compile_options(fast_float INTERFACE /permissive-)
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endif()
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if(FASTFLOAT_INSTALL)
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include(CMakePackageConfigHelpers)
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set(FASTFLOAT_VERSION_CONFIG "${CMAKE_CURRENT_BINARY_DIR}/module/FastFloatConfigVersion.cmake")
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set(FASTFLOAT_PROJECT_CONFIG "${CMAKE_CURRENT_BINARY_DIR}/module/FastFloatConfig.cmake")
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set(FASTFLOAT_CONFIG_INSTALL_DIR "${CMAKE_INSTALL_DATAROOTDIR}/cmake/FastFloat")
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set(
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FASTFLOAT_VERSION_CONFIG
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"${CMAKE_CURRENT_BINARY_DIR}/module/FastFloatConfigVersion.cmake"
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)
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if(${CMAKE_VERSION} VERSION_LESS "3.14")
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write_basic_package_version_file("${FASTFLOAT_VERSION_CONFIG}" VERSION ${PROJECT_VERSION} COMPATIBILITY SameMajorVersion)
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set(
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FASTFLOAT_PROJECT_CONFIG
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"${CMAKE_CURRENT_BINARY_DIR}/module/FastFloatConfig.cmake"
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)
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set(
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FASTFLOAT_CONFIG_INSTALL_DIR
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"${CMAKE_INSTALL_DATAROOTDIR}/cmake/FastFloat"
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)
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if(CMAKE_VERSION VERSION_LESS "3.14")
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write_basic_package_version_file(
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"${FASTFLOAT_VERSION_CONFIG}"
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VERSION ${PROJECT_VERSION}
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COMPATIBILITY SameMajorVersion
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)
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else()
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write_basic_package_version_file("${FASTFLOAT_VERSION_CONFIG}" VERSION ${PROJECT_VERSION} COMPATIBILITY SameMajorVersion ARCH_INDEPENDENT)
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write_basic_package_version_file(
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"${FASTFLOAT_VERSION_CONFIG}"
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VERSION ${PROJECT_VERSION}
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COMPATIBILITY SameMajorVersion
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ARCH_INDEPENDENT
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)
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endif()
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configure_package_config_file("cmake/config.cmake.in"
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"${FASTFLOAT_PROJECT_CONFIG}"
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INSTALL_DESTINATION "${FASTFLOAT_CONFIG_INSTALL_DIR}")
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install(DIRECTORY "${PROJECT_SOURCE_DIR}/include/fast_float" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
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install(FILES "${FASTFLOAT_PROJECT_CONFIG}" "${FASTFLOAT_VERSION_CONFIG}" DESTINATION "${FASTFLOAT_CONFIG_INSTALL_DIR}")
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install(EXPORT ${PROJECT_NAME}-targets NAMESPACE FastFloat:: DESTINATION "${FASTFLOAT_CONFIG_INSTALL_DIR}")
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configure_package_config_file(
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"cmake/config.cmake.in"
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"${FASTFLOAT_PROJECT_CONFIG}"
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INSTALL_DESTINATION "${FASTFLOAT_CONFIG_INSTALL_DIR}"
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)
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install(TARGETS fast_float
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EXPORT ${PROJECT_NAME}-targets
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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install(
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DIRECTORY
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"${PROJECT_SOURCE_DIR}/include/fast_float"
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DESTINATION
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"${CMAKE_INSTALL_INCLUDEDIR}"
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)
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install(
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FILES
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"${FASTFLOAT_PROJECT_CONFIG}"
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"${FASTFLOAT_VERSION_CONFIG}"
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DESTINATION
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"${FASTFLOAT_CONFIG_INSTALL_DIR}"
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)
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install(
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EXPORT
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${PROJECT_NAME}-targets
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NAMESPACE
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FastFloat::
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DESTINATION
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"${FASTFLOAT_CONFIG_INSTALL_DIR}"
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)
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install(
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TARGETS
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fast_float
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EXPORT
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${PROJECT_NAME}-targets
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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)
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endif()
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@ -102,43 +102,25 @@
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#endif
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// C++20 consteval.
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//
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// consteval is a language feature. It must be detected independently from
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// std::is_constant_evaluated() and from the C++20 constexpr library.
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#if FASTFLOAT_CXX20
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#if defined(__apple_build_version__) && __apple_build_version__ < 14000029L
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#define FASTFLOAT_USE_CONSTEVAL 0 // consteval is broken in Apple clang < 14.
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#elif defined(_MSC_VER) && !defined(__clang__) && _MSC_VER < 1940
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#define FASTFLOAT_USE_CONSTEVAL \
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0 // consteval is broken in some MSVC2022 versions.
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#elif defined(__cpp_consteval) && __cpp_consteval >= 201811L
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#define FASTFLOAT_USE_CONSTEVAL 1
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#else
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#define FASTFLOAT_USE_CONSTEVAL 0
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#endif
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#else
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#define FASTFLOAT_USE_CONSTEVAL 0
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#endif
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#if FASTFLOAT_USE_CONSTEVAL
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#if defined(__cpp_consteval) && __cpp_consteval >= 201811L
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#define FASTFLOAT_CONSTEVAL consteval
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#else
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#define FASTFLOAT_CONSTEVAL
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#endif
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// C++20 constexpr.
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//
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// This is deliberately independent from consteval. The functions using
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// FASTFLOAT_CONSTEXPR20 also require the corresponding C++20 constexpr
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// library facilities.
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#if FASTFLOAT_CXX20 && FASTFLOAT_HAS_IS_CONSTANT_EVALUATED && \
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FASTFLOAT_HAS_BIT_CAST && defined(__cpp_lib_constexpr_algorithms) && \
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__cpp_lib_constexpr_algorithms >= 201806L
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// C++20 constexpr function support.
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#if defined(_MSC_VER)
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#if defined(_MSVC_LANG) && _MSVC_LANG >= 202002L
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#define FASTFLOAT_CONSTEXPR20 constexpr
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#else
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#define FASTFLOAT_CONSTEXPR20
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#endif
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#elif defined(__cpp_constexpr) && __cpp_constexpr >= 201907L
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#define FASTFLOAT_CONSTEXPR20 constexpr
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#elif defined(__cplusplus) && __cplusplus >= 202002L
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#define FASTFLOAT_CONSTEXPR20 constexpr
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#define FASTFLOAT_IS_CONSTEXPR 1
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#else
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#define FASTFLOAT_CONSTEXPR20
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#define FASTFLOAT_IS_CONSTEXPR 0
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#endif
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// C++20 std::byteswap
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