#ifndef RBIMPL_HAS_ATTRIBUTE_H /*-*-C++-*-vi:se ft=cpp:*/
#define RBIMPL_HAS_ATTRIBUTE_H
/**
* @file
* @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.
* @warning Symbols prefixed with either `RBIMPL` or `rbimpl` are
* implementation details. Don't take them as canon. They could
* rapidly appear then vanish. The name (path) of this header file
* is also an implementation detail. Do not expect it to persist
* at the place it is now. Developers are free to move it anywhere
* anytime at will.
* @note To ruby-core: remember that this header can be possibly
* recursively included from extension libraries written in C++.
* Do not expect for instance `__VA_ARGS__` is always available.
* We assume C99 for ruby itself but we don't assume languages of
* extension libraries. They could be written in C++98.
* @brief Defines #RBIMPL_HAS_ATTRIBUTE.
*/
#include "ruby/internal/config.h"
#include "ruby/internal/compiler_since.h"
#if defined(__has_attribute)
# if __has_attribute(pure) || RBIMPL_COMPILER_IS(GCC)
# /* FreeBSD's <sys/cdefs.h> defines its own *broken* version of
# * __has_attribute. Cygwin copied that content to be a victim of the
# * broken-ness. We don't take them into account. */
# define RBIMPL_HAVE___HAS_ATTRIBUTE 1
# endif
#endif
/** Wraps (or simulates) `__has_attribute`. */
#if defined(RBIMPL_HAVE___HAS_ATTRIBUTE)
# define RBIMPL_HAS_ATTRIBUTE(_) __has_attribute(_)
#elif RBIMPL_COMPILER_IS(GCC)
# /* GCC <= 4 lack __has_attribute predefined macro, while have attributes
# * themselves. We can simulate the macro like the following: */
# define RBIMPL_HAS_ATTRIBUTE(_) (RBIMPL_HAS_ATTRIBUTE_ ## _)
# define RBIMPL_HAS_ATTRIBUTE_aligned RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
# define RBIMPL_HAS_ATTRIBUTE_alloc_size RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
# define RBIMPL_HAS_ATTRIBUTE_artificial RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
# define RBIMPL_HAS_ATTRIBUTE_always_inline RBIMPL_COMPILER_SINCE(GCC, 3, 1, 0)
# define RBIMPL_HAS_ATTRIBUTE_cdecl RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
# define RBIMPL_HAS_ATTRIBUTE_cold RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
# define RBIMPL_HAS_ATTRIBUTE_const RBIMPL_COMPILER_SINCE(GCC, 2, 6, 0)
# define RBIMPL_HAS_ATTRIBUTE_deprecated RBIMPL_COMPILER_SINCE(GCC, 3, 1, 0)
# define RBIMPL_HAS_ATTRIBUTE_dllexport RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
# define RBIMPL_HAS_ATTRIBUTE_dllimport RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
# define RBIMPL_HAS_ATTRIBUTE_error RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
# define RBIMPL_HAS_ATTRIBUTE_format RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
# define RBIMPL_HAS_ATTRIBUTE_hot RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
# define RBIMPL_HAS_ATTRIBUTE_leaf RBIMPL_COMPILER_SINCE(GCC, 4, 6, 0)
# define RBIMPL_HAS_ATTRIBUTE_malloc RBIMPL_COMPILER_SINCE(GCC, 3, 0, 0)
# define RBIMPL_HAS_ATTRIBUTE_no_address_safety_analysis RBIMPL_COMPILER_SINCE(GCC, 4, 8, 0)
# define RBIMPL_HAS_ATTRIBUTE_no_sanitize_address RBIMPL_COMPILER_SINCE(GCC, 4, 8, 0)
# define RBIMPL_HAS_ATTRIBUTE_no_sanitize_undefined RBIMPL_COMPILER_SINCE(GCC, 4, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_noinline RBIMPL_COMPILER_SINCE(GCC, 3, 1, 0)
# define RBIMPL_HAS_ATTRIBUTE_nonnull RBIMPL_COMPILER_SINCE(GCC, 3, 3, 0)
# define RBIMPL_HAS_ATTRIBUTE_noreturn RBIMPL_COMPILER_SINCE(GCC, 2, 5, 0)
# define RBIMPL_HAS_ATTRIBUTE_nothrow RBIMPL_COMPILER_SINCE(GCC, 3, 3, 0)
# define RBIMPL_HAS_ATTRIBUTE_pure RBIMPL_COMPILER_SINCE(GCC, 2,96, 0)
# define RBIMPL_HAS_ATTRIBUTE_returns_nonnull RBIMPL_COMPILER_SINCE(GCC, 4, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_returns_twice RBIMPL_COMPILER_SINCE(GCC, 4, 1, 0)
# define RBIMPL_HAS_ATTRIBUTE_stdcall RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
# define RBIMPL_HAS_ATTRIBUTE_unused RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
# define RBIMPL_HAS_ATTRIBUTE_visibility RBIMPL_COMPILER_SINCE(GCC, 3, 3, 0)
# define RBIMPL_HAS_ATTRIBUTE_warn_unused_result RBIMPL_COMPILER_SINCE(GCC, 3, 4, 0)
# define RBIMPL_HAS_ATTRIBUTE_warning RBIMPL_COMPILER_SINCE(GCC, 4, 3, 0)
# define RBIMPL_HAS_ATTRIBUTE_weak RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
# /* Note that "0, 0, 0" might be inaccurate. */
#elif RBIMPL_COMPILER_IS(SunPro)
# /* Oracle Solaris Studio 12.4 (cc version 5.11) introduced __has_attribute.
# * Before that, following attributes were available. */
# /* See https://docs.oracle.com/cd/F24633_01/index.html */
# define RBIMPL_HAS_ATTRIBUTE(_) (RBIMPL_HAS_ATTRIBUTE_ ## _)
# define RBIMPL_HAS_ATTRIBUTE_alias RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_aligned RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_always_inline RBIMPL_COMPILER_SINCE(SunPro, 5, 10, 0)
# define RBIMPL_HAS_ATTRIBUTE_const RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_constructor RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_destructor RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_malloc RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_noinline RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_noreturn RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_packed RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_pure RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_returns_twice RBIMPL_COMPILER_SINCE(SunPro, 5, 10, 0)
# define RBIMPL_HAS_ATTRIBUTE_vector_size RBIMPL_COMPILER_SINCE(SunPro, 5, 10, 0)
# define RBIMPL_HAS_ATTRIBUTE_visibility RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
# define RBIMPL_HAS_ATTRIBUTE_weak RBIMPL_COMPILER_SINCE(SunPro, 5, 9, 0)
#elif defined (_MSC_VER)
# define RBIMPL_HAS_ATTRIBUTE(_) 0
# /* Fallback below doesn't work: see win32/Makefile.sub */
#else
# /* Take config.h definition when available. */
# define RBIMPL_HAS_ATTRIBUTE(_) ((RBIMPL_HAS_ATTRIBUTE_ ## _)+0)
# ifdef ALWAYS_INLINE
# define RBIMPL_HAS_ATTRIBUTE_always_inline 1
# endif
# ifdef FUNC_CDECL
# define RBIMPL_HAS_ATTRIBUTE_cdecl 1
# endif
# ifdef CONSTFUNC
# define RBIMPL_HAS_ATTRIBUTE_const 1
# endif
# ifdef DEPRECATED
# define RBIMPL_HAS_ATTRIBUTE_deprecated 1
# endif
# ifdef ERRORFUNC
# define RBIMPL_HAS_ATTRIBUTE_error 1
# endif
# ifdef FUNC_FASTCALL
# define RBIMPL_HAS_ATTRIBUTE_fastcall 1
# endif
# ifdef PUREFUNC
# define RBIMPL_HAS_ATTRIBUTE_pure 1
# endif
# ifdef NO_ADDRESS_SAFETY_ANALYSIS
# define RBIMPL_HAS_ATTRIBUTE_no_address_safety_analysis 1
# endif
# ifdef NO_SANITIZE
# define RBIMPL_HAS_ATTRIBUTE_no_sanitize 1
# endif
# ifdef NO_SANITIZE_ADDRESS
# define RBIMPL_HAS_ATTRIBUTE_no_sanitize_address 1
# endif
# ifdef NOINLINE
# define RBIMPL_HAS_ATTRIBUTE_noinline 1
# endif
# ifdef RBIMPL_FUNC_NONNULL
# define RBIMPL_HAS_ATTRIBUTE_nonnull 1
# endif
# ifdef NORETURN
# define RBIMPL_HAS_ATTRIBUTE_noreturn 1
# endif
# ifdef FUNC_OPTIMIZED
# define RBIMPL_HAS_ATTRIBUTE_optimize 1
# endif
# ifdef FUNC_STDCALL
# define RBIMPL_HAS_ATTRIBUTE_stdcall 1
# endif
# ifdef MAYBE_UNUSED
# define RBIMPL_HAS_ATTRIBUTE_unused 1
# endif
# ifdef WARN_UNUSED_RESULT
# define RBIMPL_HAS_ATTRIBUTE_warn_unused_result 1
# endif
# ifdef WARNINGFUNC
# define RBIMPL_HAS_ATTRIBUTE_warning 1
# endif
# ifdef WEAK
# define RBIMPL_HAS_ATTRIBUTE_weak 1
# endif
#endif
#endif /* RBIMPL_HAS_ATTRIBUTE_H */
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