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Diffstat (limited to 'include/ruby/internal/has/declspec_attribute.h')
| -rw-r--r-- | include/ruby/internal/has/declspec_attribute.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/ruby/internal/has/declspec_attribute.h b/include/ruby/internal/has/declspec_attribute.h new file mode 100644 index 0000000000..ba6ad98fce --- /dev/null +++ b/include/ruby/internal/has/declspec_attribute.h @@ -0,0 +1,48 @@ +#ifndef RBIMPL_HAS_DECLSPEC_ATTRIBUTE_H /*-*-C++-*-vi:se ft=cpp:*/ +#define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_H +/** + * @file + * @author Ruby developers <[email protected]> + * @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_DECLSPEC_ATTRIBUTE. + */ +#include "ruby/impl/compiler_since.h" +#include "ruby/impl/token_paste.h" + +/** Wraps (or simulates) `__has_declspec_attribute`. */ +#if defined(__has_declspec_attribute) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE(_) __has_declspec_attribute(_) +#else +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE(_) RBIMPL_TOKEN_PASTE(RBIMPL_HAS_DECLSPEC_ATTRIBUTE_, _) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_align RBIMPL_COMPILER_SINCE(MSVC, 8, 0, 0) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_deprecated RBIMPL_COMPILER_SINCE(MSVC,13, 0, 0) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_dllexport RBIMPL_COMPILER_SINCE(MSVC, 8, 0, 0) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_dllimport RBIMPL_COMPILER_SINCE(MSVC, 8, 0, 0) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_empty_bases RBIMPL_COMPILER_SINCE(MSVC,19, 0, 23918) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_noalias RBIMPL_COMPILER_SINCE(MSVC, 8, 0, 0) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_noinline RBIMPL_COMPILER_SINCE(MSVC,13, 0, 0) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_noreturn RBIMPL_COMPILER_SINCE(MSVC,11, 0, 0) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_nothrow RBIMPL_COMPILER_SINCE(MSVC, 8, 0, 0) +# define RBIMPL_HAS_DECLSPEC_ATTRIBUTE_restrict RBIMPL_COMPILER_SINCE(MSVC,14, 0, 0) +# /* Note that "8, 0, 0" might be inaccurate. */ +# if ! defined(__cplusplus) +# /* Clang has this in both C/C++, but MSVC has this in C++ only.*/ +# undef RBIMPL_HAS_DECLSPEC_ATTRIBUTE_nothrow +# endif +#endif + +#endif /* RBIMPL_HAS_DECLSPEC_ATTRIBUTE_H */ |