mirror of
https://github.com/aantron/better-enums.git
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ba9139e075
To run tests with the system compiler, execute
make
To run tests with the system compiler in all configurations,
make default-all
To re-generate the examples from the documentation Markdown, and then
test all configurations,
make default-thorough
Other Makefile targets are for exhaustive testing with multiple
locally-installed compilers, or for use on CI servers, and are not for
general use.
Python and CxxTest are still required. On Windows, it is helpful to
have a Cygwin environment with a non-Cygwin CMake, and MSBuild.exe
should be in PATH.
Better Enums is now tested in fewer configurations. C++11 features are
no longer tested on clang 3.3, gcc 4.3-4.6, because CMake claims
(apparently falsely, in some cases) that those compilers don't support
constexpr and enum class.
133 lines
3.7 KiB
CMake
133 lines
3.7 KiB
CMake
cmake_minimum_required(VERSION 3.1.0 FATAL_ERROR)
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project("Better Enums Testing" CXX)
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# Detect compiler feature support.
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list(FIND CMAKE_CXX_COMPILE_FEATURES cxx_constexpr CONSTEXPR_INDEX)
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if(CONSTEXPR_INDEX EQUAL -1)
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set(SUPPORTS_CONSTEXPR 0)
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else()
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set(SUPPORTS_CONSTEXPR 1)
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endif()
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list(FIND CMAKE_CXX_COMPILE_FEATURES cxx_strong_enums ENUM_CLASS_INDEX)
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if(ENUM_CLASS_INDEX EQUAL -1)
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set(SUPPORTS_ENUM_CLASS 0)
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else()
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set(SUPPORTS_ENUM_CLASS 1)
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endif()
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# Not supporting C++11 usage on g++46 due to buggy constexpr.
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if(CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.7)
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set(SUPPORTS_CONSTEXPR 0)
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set(SUPPORTS_ENUM_CLASS 0)
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endif()
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# Select standard based on the requested configuration. If the compiler does not
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# support the requested configuration, write a message and generate a no-op
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# build. This condition is not a failure.
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#
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# If no configuration is explicitly requested, default to compiling with no
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# special flags, with the latest standard supported by the compiler.
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set(DO_NOT_TEST_FILE "${CMAKE_BINARY_DIR}/do-not-test")
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if(CONFIGURATION STREQUAL CONSTEXPR)
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if(SUPPORTS_CONSTEXPR)
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set(CMAKE_CXX_STANDARD 11)
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else()
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message(WARNING "This compiler does not support constexpr")
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file(WRITE "${DO_NOT_TEST_FILE}")
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return()
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endif()
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elseif(CONFIGURATION STREQUAL FULL_CONSTEXPR)
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if(SUPPORTS_CONSTEXPR)
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set(CMAKE_CXX_STANDARD 11)
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add_definitions(-DBETTER_ENUMS_CONSTEXPR_TO_STRING)
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else()
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message(WARNING "This compiler does not support constexpr")
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file(WRITE "${DO_NOT_TEST_FILE}")
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return()
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endif()
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elseif(CONFIGURATION STREQUAL STRICT_CONVERSION)
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if(SUPPORTS_ENUM_CLASS)
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set(CMAKE_CXX_STANDARD 11)
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add_definitions(-DBETTER_ENUMS_STRICT_CONVERSION)
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else()
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message(WARNING "This compiler does not support enum class")
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file(WRITE "${DO_NOT_TEST_FILE}")
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return()
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endif()
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elseif(CONFIGURATION STREQUAL CXX98)
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set(CMAKE_CXX_STANDARD 98)
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else()
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set(CMAKE_CXX_STANDARD 11)
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endif()
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# Basic tests.
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add_executable(cxxtest cxxtest/tests.cc)
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add_executable(link link/helper.cc link/main.cc)
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set(PERFORMANCE_TESTS
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1-simple 2-include_empty 3-only_include_enum 4-declare_enums 5-iostream)
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foreach(TEST ${PERFORMANCE_TESTS})
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add_executable(performance-${TEST} performance/${TEST}.cc)
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endforeach(TEST)
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# Select examples to build.
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set(EXAMPLES
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1-hello-world 2-conversions 3-iterate 4-switch 5-iostreams 6-safety
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7-representation 8-constexpr 101-special-values 102-any-underlying
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103-bitset 104-quine)
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set(SKIPPED_FOR_CXX98
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8-constexpr 101-special-values 102-any-underlying 103-bitset 104-quine)
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set(SKIPPED_FOR_STRICT_CONVERSION 4-switch 102-any-underlying)
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if(CONFIGURATION STREQUAL CXX98 OR NOT SUPPORTS_CONSTEXPR)
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list(REMOVE_ITEM EXAMPLES ${SKIPPED_FOR_CXX98})
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endif()
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if(CONFIGURATION STREQUAL STRICT_CONVERSION)
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list(REMOVE_ITEM EXAMPLES ${SKIPPED_FOR_STRICT_CONVERSION})
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endif()
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foreach(EXAMPLE ${EXAMPLES})
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add_executable(example-${EXAMPLE} ../example/${EXAMPLE}.cc)
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endforeach(EXAMPLE)
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# Add compiler flags.
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include_directories(..)
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if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES Clang)
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include(CheckCXXCompilerFlag)
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macro(add_cxx_flag_if_supported FLAG)
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string(REPLACE "=" "_equals_" ESCAPED ${FLAG})
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string(REPLACE "+" "_plus_" ESCAPED ${ESCAPED})
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check_cxx_compiler_flag("${FLAG}" HAVE_FLAG_${ESCAPED})
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if(HAVE_FLAG_${ESCAPED})
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add_definitions(${FLAG})
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endif()
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endmacro()
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add_cxx_flag_if_supported("-Wpedantic")
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add_cxx_flag_if_supported("-Wall")
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add_cxx_flag_if_supported("-Wextra")
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add_cxx_flag_if_supported("-Wno-variadic-macros")
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add_definitions("-Werror")
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endif()
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