#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 */