Criterion/include/criterion/internal/common.h

/*
 * The MIT License (MIT)
 *
 * Copyright © 2015 Franklin "Snaipe" Mathieu <http://snai.pe/>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#ifndef CRITERION_COMMON_H_
# define CRITERION_COMMON_H_

# if defined(_MSC_VER)
#  if _MSC_VER < 1900
#   error \
        Your version of MSVC++ is too old, please compile your tests using  \
        a c99 compiler, like MinGW or MSVC 14.0+ (Included in visual studio \
        2015)
#  endif
# endif

# ifndef CR_IS_MSVC
#  ifdef _MSC_VER
#   define CR_IS_MSVC _MSC_VER
#  else
#   define CR_IS_MSVC 0
#  endif
# endif

# ifdef __cplusplus
#  ifdef __GNUC__
#   define CR_ATTRIBUTE(Arg) __attribute__((Arg))
#  else
#   define CR_ATTRIBUTE(Arg) [[gnu::Arg]]
#  endif
#  define CR_BEGIN_C_API extern "C" {
#  define CR_END_C_API }
# else
#  define CR_ATTRIBUTE(Arg) __attribute__((Arg))
#  define CR_BEGIN_C_API
#  define CR_END_C_API
# endif

# ifdef __APPLE__
#  define CR_SECTION_START_PREFIX       __first
#  define CR_SECTION_END_PREFIX         __last
#  define CR_SECTION_START_SUFFIX(Name) __asm("section$start$__DATA$" Name)
#  define CR_SECTION_END_SUFFIX(Name)   __asm("section$end$__DATA$" Name)
#  define CR_SECTION_(Name)             CR_ATTRIBUTE(section("__DATA," Name))
#  define CR_SECTION_SUFFIX_
# elif CR_IS_MSVC
#  define CR_SECTION_START_PREFIX       __start
#  define CR_SECTION_END_PREFIX         __stop
#  define CR_SECTION_START_SUFFIX(Name)
#  define CR_SECTION_END_SUFFIX(Name)
#  define CR_SECTION_(Name)                 \
    __pragma(data_seg(push))                \
    __pragma(section(Name, read))           \
    __declspec(allocate(Name))
#  define CR_SECTION_SUFFIX_                \
    __pragma(data_seg(pop))
# else
#  define CR_SECTION_START_PREFIX       __start
#  define CR_SECTION_END_PREFIX         __stop
#  define CR_SECTION_START_SUFFIX(Name)
#  define CR_SECTION_END_SUFFIX(Name)
#  define CR_SECTION_(Name)             CR_ATTRIBUTE(section(Name))
#  define CR_SECTION_SUFFIX_
# endif

# define CR_MAKE_IDENTIFIER_(Prefix, Id) CR_MAKE_IDENTIFIER__(Prefix, Id)
# define CR_MAKE_IDENTIFIER__(Prefix, Id) Prefix ## _ ## Id

# define CR_SECTION_START_(Name) CR_MAKE_IDENTIFIER_(CR_SECTION_START_PREFIX, Name)
# define CR_SECTION_END_(Name)   CR_MAKE_IDENTIFIER_(CR_SECTION_END_PREFIX, Name)

# define CR_SECTION_START(Name)  g_ ## Name ## _section_start
# define CR_SECTION_END(Name)    g_ ## Name ## _section_end

# define CR_DECL_SECTION_LIMITS(Type, Name) CR_DECL_SECTION_LIMITS_(Type, Name)
# define CR_DECL_SECTION_LIMITS_(Type, Name)                            \
    extern Type CR_SECTION_START_(Name) CR_SECTION_START_SUFFIX(#Name); \
    extern Type CR_SECTION_END_(Name)   CR_SECTION_END_SUFFIX(#Name)

# define CR_IMPL_SECTION_LIMITS(Type, Name)                         \
    Type *const CR_SECTION_START(Name) = &CR_SECTION_START_(Name);  \
    Type *const CR_SECTION_END(Name)   = &CR_SECTION_END_(Name)

# ifdef __GNUC__
#  define CR_UNUSED CR_ATTRIBUTE(unused)
#  define CR_NORETURN CR_ATTRIBUTE(noreturn)
#  define CR_INLINE CR_ATTRIBUTE(always_inline) inline
# elif CR_IS_MSVC
#  define CR_UNUSED __pragma(warning(suppress:4100))
#  define CR_NORETURN __declspec(noreturn)
#  define CR_INLINE __forceinline
# else
#  define CR_UNUSED
#  define CR_NORETURN
#  define CR_INLINE inline
# endif

# ifdef _WIN32
#  define CR_SIZE_T_FORMAT "%Iu"
# else
#  define CR_SIZE_T_FORMAT "%zu"
# endif

# ifdef __GNUC__
#  define CR_FORMAT(Archetype, Index, Ftc) CR_ATTRIBUTE(format(Archetype, Index, Ftc))
# else
#  define CR_FORMAT(Archetype, Index, Ftc)
# endif

# if defined _WIN32 || defined __CYGWIN__
#  ifdef CRITERION_BUILDING_DLL
#   ifdef __GNUC__
#    define CR_API CR_ATTRIBUTE(dllexport)
#   else
#    define CR_API __declspec(dllexport)
#   endif
#  else
#   ifdef __GNUC__
#    define CR_API CR_ATTRIBUTE(dllimport)
#   else
#    define CR_API __declspec(dllimport)
#   endif
#  endif
#  define CR_LOCAL
# else
#  if __GNUC__ >= 4
#   define CR_API   CR_ATTRIBUTE(visibility("default"))
#   define CR_LOCAL CR_ATTRIBUTE(visibility("hidden"))
#  else
#   define CR_API
#   define CR_LOCAL
#  endif
# endif

#endif /* !CRITERION_COMMON_H_ */