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#ifndef INTERNAL_COMPILERS_H /*-*-C-*-vi:se ft=c:*/
#define INTERNAL_COMPILERS_H
/**
* @author Ruby developers <ruby-core@ruby-lang.org>
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
* @brief Internal header absorbing C compiler differences.
*/
#include "ruby/internal/compiler_since.h"
#include "ruby/internal/has/attribute.h"
#include "ruby/internal/has/builtin.h"
#include "ruby/internal/has/c_attribute.h"
#include "ruby/internal/has/declspec_attribute.h"
#include "ruby/internal/has/extension.h"
#include "ruby/internal/has/feature.h"
#include "ruby/internal/has/warning.h"
#include "ruby/backward/2/gcc_version_since.h"
#define MSC_VERSION_SINCE(_) RBIMPL_COMPILER_SINCE(MSVC, (_) / 100, (_) % 100, 0)
#define MSC_VERSION_BEFORE(_) RBIMPL_COMPILER_BEFORE(MSVC, (_) / 100, (_) % 100, 0)
#ifndef __has_attribute
# define __has_attribute(...) RBIMPL_HAS_ATTRIBUTE(__VA_ARGS__)
#endif
#ifndef __has_c_attribute
# /* As of writing everything that lacks __has_c_attribute also completely
# * lacks C2x attributes as well. Might change in future? */
# define __has_c_attribute(...) 0
#endif
#ifndef __has_declspec_attribute
# define __has_declspec_attribute(...) RBIMPL_HAS_DECLSPEC_ATTRIBUTE(__VA_ARGS__)
#endif
#ifndef __has_builtin
# define __has_builtin(...) RBIMPL_HAS_BUILTIN(__VA_ARGS__)
#endif
#ifndef __has_feature
# define __has_feature(...) RBIMPL_HAS_FEATURE(__VA_ARGS__)
#endif
#ifndef __has_extension
# define __has_extension(...) RBIMPL_HAS_EXTENSION(__VA_ARGS__)
#endif
#ifndef __has_warning
# define __has_warning(...) RBIMPL_HAS_WARNING(__VA_ARGS__)
#endif
#ifndef __GNUC__
# define __extension__ /* void */
#endif
#ifndef MAYBE_UNUSED
# define MAYBE_UNUSED(x) x
#endif
#ifndef WARN_UNUSED_RESULT
# define WARN_UNUSED_RESULT(x) x
#endif
#define RB_OBJ_BUILTIN_TYPE(obj) rb_obj_builtin_type(obj)
#define OBJ_BUILTIN_TYPE(obj) RB_OBJ_BUILTIN_TYPE(obj)
#ifdef __GNUC__
#define rb_obj_builtin_type(obj) \
__extension__({ \
VALUE arg_obj = (obj); \
RB_SPECIAL_CONST_P(arg_obj) ? -1 : \
(int)RB_BUILTIN_TYPE(arg_obj); \
})
#else
# include "ruby/ruby.h"
static inline int
rb_obj_builtin_type(VALUE obj)
{
return RB_SPECIAL_CONST_P(obj) ? -1 :
(int)RB_BUILTIN_TYPE(obj);
}
#endif
/* A macro for defining a flexible array, like: VALUE ary[FLEX_ARY_LEN]; */
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
# define FLEX_ARY_LEN /* VALUE ary[]; */
#elif defined(__GNUC__) && !defined(__STRICT_ANSI__)
# define FLEX_ARY_LEN 0 /* VALUE ary[0]; */
#else
# define FLEX_ARY_LEN 1 /* VALUE ary[1]; */
#endif
/*
* For declaring bitfields out of non-unsigned int types:
* struct date {
* BITFIELD(enum months, month, 4);
* ...
* };
*/
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
# define BITFIELD(type, name, size) type name : size
#else
# define BITFIELD(type, name, size) unsigned int name : size
#endif
#endif /* INTERNAL_COMPILERS_H */
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