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range-v3-0.12.0/include/range/v3/detail/config.hpp  view on Meta::CPAN

#ifndef RANGES_CXX_RETURN_TYPE_DEDUCTION
#ifdef __cpp_return_type_deduction
#define RANGES_CXX_RETURN_TYPE_DEDUCTION __cpp_return_type_deduction
#else
#define RANGES_CXX_RETURN_TYPE_DEDUCTION RANGES_CXX_FEATURE(RETURN_TYPE_DEDUCTION)
#endif
#endif

#ifndef RANGES_CXX_GENERIC_LAMBDAS
#ifdef __cpp_generic_lambdas
#define RANGES_CXX_GENERIC_LAMBDAS __cpp_generic_lambdas
#else
#define RANGES_CXX_GENERIC_LAMBDAS RANGES_CXX_FEATURE(GENERIC_LAMBDAS)
#endif
#endif

#ifndef RANGES_CXX_THREAD_LOCAL
#if defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED <= 70100
#define RANGES_CXX_THREAD_LOCAL 0
#elif defined(__IPHONE_OS_VERSION_MIN_REQUIRED) || \
    (defined(__clang__) && (defined(__CYGWIN__) || defined(__apple_build_version__)))
// BUGBUG avoid unresolved __cxa_thread_atexit
#define RANGES_CXX_THREAD_LOCAL RANGES_CXX_THREAD_LOCAL_PRE_STANDARD
#else
#define RANGES_CXX_THREAD_LOCAL RANGES_CXX_FEATURE(THREAD_LOCAL)
#endif
#endif

#if !defined(RANGES_DEPRECATED) && !defined(RANGES_DISABLE_DEPRECATED_WARNINGS)
#if defined(__GNUC__) && !defined(__clang__)
// GCC's support for [[deprecated("message")]] is unusably buggy.
#define RANGES_DEPRECATED(MSG) __attribute__((deprecated(MSG)))
#elif RANGES_CXX_ATTRIBUTE_DEPRECATED && \
    !((defined(__clang__) || defined(__GNUC__)) && RANGES_CXX_STD < RANGES_CXX_STD_14)
#define RANGES_DEPRECATED(MSG) [[deprecated(MSG)]]
#elif defined(__clang__) || defined(__GNUC__)
#define RANGES_DEPRECATED(MSG) __attribute__((deprecated(MSG)))
#endif
#endif
#ifndef RANGES_DEPRECATED
#define RANGES_DEPRECATED(MSG)
#endif

#if !defined(RANGES_DEPRECATED_HEADER) && !defined(RANGES_DISABLE_DEPRECATED_WARNINGS)
#ifdef __GNUC__
#define RANGES_DEPRECATED_HEADER(MSG) RANGES_PRAGMA(GCC warning MSG)
#elif defined(_MSC_VER)
#define RANGES_STRINGIZE_(MSG) #MSG
#define RANGES_STRINGIZE(MSG) RANGES_STRINGIZE_(MSG)
#define RANGES_DEPRECATED_HEADER(MSG) \
    __pragma(message(__FILE__ "(" RANGES_STRINGIZE(__LINE__) ") : Warning: " MSG))
#endif
#else
#define RANGES_DEPRECATED_HEADER(MSG) /**/
#endif
// #ifndef RANGES_DEPRECATED_HEADER
// #define RANGES_DEPRECATED_HEADER(MSG)
// #endif

#ifndef RANGES_CXX_COROUTINES
#if defined(__cpp_coroutines) && defined(__has_include)
#if __has_include(<coroutine>)
#define RANGES_CXX_COROUTINES __cpp_coroutines
#define RANGES_COROUTINES_HEADER <coroutine>
#define RANGES_COROUTINES_NS std
#elif __has_include(<experimental/coroutine>)
#define RANGES_CXX_COROUTINES __cpp_coroutines
#define RANGES_COROUTINES_HEADER <experimental/coroutine>
#define RANGES_COROUTINES_NS std::experimental
#endif
#endif
#ifndef RANGES_CXX_COROUTINES
#define RANGES_CXX_COROUTINES RANGES_CXX_FEATURE(COROUTINES)
#endif
#endif

#ifdef NDEBUG
#define RANGES_NDEBUG_CONSTEXPR constexpr
#else
#define RANGES_NDEBUG_CONSTEXPR inline
#endif

#ifndef RANGES_CXX_INLINE_VARIABLES
#ifdef __cpp_inline_variables
#define RANGES_CXX_INLINE_VARIABLES __cpp_inline_variables
#elif defined(__clang__) && (__clang_major__ == 3 && __clang_minor__ == 9) && \
    RANGES_CXX_VER > RANGES_CXX_STD_14
// Clang 3.9 supports inline variables in C++17 mode, but doesn't define
// __cpp_inline_variables
#define RANGES_CXX_INLINE_VARIABLES RANGES_CXX_INLINE_VARIABLES_17
#else
#define RANGES_CXX_INLINE_VARIABLES RANGES_CXX_FEATURE(INLINE_VARIABLES)
#endif // __cpp_inline_variables
#endif // RANGES_CXX_INLINE_VARIABLES

#if RANGES_CXX_INLINE_VARIABLES < RANGES_CXX_INLINE_VARIABLES_17 && \
    !defined(RANGES_DOXYGEN_INVOKED)
#define RANGES_INLINE_VAR
#define RANGES_INLINE_VARIABLE(type, name)                           \
    namespace                                                        \
    {                                                                \
        constexpr auto & name = ::ranges::static_const<type>::value; \
    }
#else // RANGES_CXX_INLINE_VARIABLES >= RANGES_CXX_INLINE_VARIABLES_17
#define RANGES_INLINE_VAR inline
#define RANGES_INLINE_VARIABLE(type, name) \
    inline constexpr type name{};          \
    /**/
#endif // RANGES_CXX_INLINE_VARIABLES

#if defined(RANGES_DOXYGEN_INVOKED)
#define RANGES_DEFINE_CPO(type, name) \
    inline constexpr type name{};     \
    /**/
#elif RANGES_CXX_INLINE_VARIABLES < RANGES_CXX_INLINE_VARIABLES_17
#define RANGES_DEFINE_CPO(type, name)                                \
    namespace                                                        \
    {                                                                \
        constexpr auto & name = ::ranges::static_const<type>::value; \
    }                                                                \
    /**/
#else // RANGES_CXX_INLINE_VARIABLES >= RANGES_CXX_INLINE_VARIABLES_17
#define RANGES_DEFINE_CPO(type, name) \
    namespace _                       \
    {                                 \
        inline constexpr type name{}; \
    }                                 \
    using namespace _;                \