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48 lines
2.7 KiB
C++
48 lines
2.7 KiB
C++
/** \noop-*-C++-*-vi:ft=cpp
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* @file
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* @author Ruby developers <ruby-core@ruby-lang.org>
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* @copyright This file is a part of the programming language Ruby.
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* Permission is hereby granted, to either redistribute and/or
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* modify this file, provided that the conditions mentioned in the
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* file COPYING are met. Consult the file for details.
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* @warning Symbols prefixed with either `RUBY3` or `ruby3` are
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* implementation details. Don't take them as canon. They could
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* rapidly appear then vanish. The name (path) of this header file
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* is also an implementation detail. Do not expect it to persist
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* at the place it is now. Developers are free to move it anywhere
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* anytime at will.
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* @note To ruby-core: remember that this header can be possibly
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* recursively included from extension libraries written in C++.
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* Do not expect for instance `__VA_ARGS__` is always available.
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* We assume C99 for ruby itself but we don't assume languages of
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* extension libraries. They could be written in C++98.
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* @brief Defines #RUBY3_HAS_DECLSPEC_ATTRIBUTE.
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*/
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#include "ruby/3/compiler_since.h"
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#include "ruby/3/token_paste.h"
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/** Wraps (or simulates) `__has_declspec_attribute`. */
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#if defined(RUBY3_HAS_DECLSPEC_ATTRIBUTE)
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# /* Take that. */
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#elif defined(__has_declspec_attribute)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE(_) __has_declspec_attribute(_)
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#else
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE(_) RUBY3_TOKEN_PASTE(RUBY3_HAS_DECLSPEC_ATTRIBUTE_, _)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_align RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_deprecated RUBY3_COMPILER_SINCE(MSVC,13, 0, 0)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_dllexport RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_dllimport RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_empty_bases RUBY3_COMPILER_SINCE(MSVC,19, 0, 23918)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_noalias RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_noinline RUBY3_COMPILER_SINCE(MSVC,13, 0, 0)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_noreturn RUBY3_COMPILER_SINCE(MSVC,11, 0, 0)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_nothrow RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
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# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_restrict RUBY3_COMPILER_SINCE(MSVC,14, 0, 0)
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# /* Note that "8, 0, 0" might be inaccurate. */
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# if ! defined(__cplusplus)
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# /* Clang has this in both C/C++, but MSVC has this in C++ only.*/
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# undef RUBY3_HAS_DECLSPEC_ATTRIBUTE_nothrow
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# endif
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#endif
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