GeezerVison is showing github.com — mruby/include/mruby/common.h at stable · mruby/mruby

Expand file tree

common.h

Copy path

More file actions

Latest commit

History

127 lines (113 loc) · 3.32 KB

common.h

Copy path

File metadata and controls

127 lines (113 loc) · 3.32 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

/**

** @file common.h - mruby common platform definition"

** See Copyright Notice in mruby.h

#ifndef MRUBY_COMMON_H

#define MRUBY_COMMON_H

#ifdef __APPLE__

#ifndef __TARGETCONDITIONALS__

#include "TargetConditionals.h"

#endif

#ifdef __cplusplus

#ifdef MRB_USE_CXX_ABI

#define MRB_BEGIN_DECL

#define MRB_END_DECL

#else

# define MRB_BEGIN_DECL extern "C" {

# define MRB_END_DECL }

#endif

#else

/** Start declarations in C mode */

# define MRB_BEGIN_DECL

/** End declarations in C mode */

# define MRB_END_DECL

#endif

#include <sys/types.h>

#if defined _MSC_VER

#include <BaseTsd.h>

typedef SSIZE_T ssize_t;

#endif

/**

* Shared compiler macros

MRB_BEGIN_DECL

/** Declare a function that never returns. */

#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 201112L

# define mrb_noreturn _Noreturn

#elif defined __GNUC__ && !defined __STRICT_ANSI__

# define mrb_noreturn __attribute__((noreturn))

#elif defined _MSC_VER

# define mrb_noreturn __declspec(noreturn)

#else

# define mrb_noreturn

#endif

/** Mark a function as deprecated. */

#if defined __GNUC__ && !defined __STRICT_ANSI__

# define mrb_deprecated __attribute__((deprecated))

#elif defined _MSC_VER

# define mrb_deprecated __declspec(deprecated)

#else

# define mrb_deprecated

#endif

/** Branch prediction hints for optimization. */

#if defined(__GNUC__) || defined(__clang__)

# define mrb_likely(x) __builtin_expect(!!(x), 1)

# define mrb_unlikely(x) __builtin_expect(!!(x), 0)

#else

# define mrb_likely(x) (x)

# define mrb_unlikely(x) (x)

#endif

/** Declare a type or object as an alignment requirement. */

#ifndef mrb_alignas

# if defined(__cplusplus) && __cplusplus >= 201103L

# // https://en.cppreference.com/w/cpp/language/alignas

# define mrb_alignas(n) alignas(n)

# elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L

# // https://en.cppreference.com/w/c/language/_Alignas

# define mrb_alignas(n) _Alignas(n)

# elif defined(_MSC_VER) || defined(__INTEL_COMPILER)

# // https://learn.microsoft.com/en-us/cpp/cpp/align-cpp?view=msvc-170

# define mrb_alignas(n) __declspec(align(n))

# elif defined(__GNUC__) || defined(__clang__)

# // https://gcc.gnu.org/onlinedocs/gcc/Common-Type-Attributes.html#index-aligned-type-attribute

# define mrb_alignas(n) __attribute__((aligned(n)))

# else

# // `mrb_alignas` defined as dummy. If necessary, send issues to https://github.com/mruby/mruby .

# define mrb_alignas(n)

# endif

#endif

/** Declare a function as always inlined. */

#if defined _MSC_VER && _MSC_VER < 1900

# ifndef __cplusplus

# define inline __inline

# endif

#endif

#define MRB_INLINE static inline

/** Declare a public mruby API function. */

#ifndef MRB_API

#if defined(MRB_BUILD_AS_DLL)

#if defined(MRB_CORE) || defined(MRB_LIB)

# define MRB_API __declspec(dllexport)

#else

# define MRB_API __declspec(dllimport)

#endif

#else

# define MRB_API extern

#endif

/** Declare mingw versions */

#if defined(__MINGW32__) || defined(__MINGW64__)

# include <_mingw.h>

# if defined(__MINGW64_VERSION_MAJOR)

# define MRB_MINGW64_VERSION (__MINGW64_VERSION_MAJOR * 1000 + __MINGW64_VERSION_MINOR)

# elif defined(__MINGW32_MAJOR_VERSION)

# define MRB_MINGW32_VERSION (__MINGW32_MAJOR_VERSION * 1000 + __MINGW32_MINOR_VERSION)

# endif

# if defined(__MINGW32__) && !defined(__MINGW64__)

# define MRB_MINGW32_LEGACY

# endif

#endif

MRB_END_DECL

#endif /* MRUBY_COMMON_H */