#ifndef RUBY3_HAS_ATTRIBUTE_H /*-*-C++-*-vi:se ft=cpp:*/ #define RUBY3_HAS_ATTRIBUTE_H /** * @file * @author Ruby developers * @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 `RUBY3` or `ruby3` 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 #RUBY3_HAS_ATTRIBUTE. */ #include "ruby/3/config.h" /** Wraps (or simulates) `__has_attribute`. */ #if defined(__has_attribute) # define RUBY3_HAS_ATTRIBUTE(_) __has_attribute(_) #elif RUBY3_COMPILER_IS(GCC) # /* GCC <= 4 lack __has_attribute predefined macro, while have attributes # * themselves. We can simulate the macro like the following: */ # define RUBY3_HAS_ATTRIBUTE(_) RUBY3_TOKEN_PASTE(RUBY3_HAS_ATTRIBUTE_, _) # define RUBY3_HAS_ATTRIBUTE_aligned RUBY3_COMPILER_SINCE(GCC, 0, 0, 0) # define RUBY3_HAS_ATTRIBUTE_alloc_size RUBY3_COMPILER_SINCE(GCC, 4, 3, 0) # define RUBY3_HAS_ATTRIBUTE_artificial RUBY3_COMPILER_SINCE(GCC, 4, 3, 0) # define RUBY3_HAS_ATTRIBUTE_always_inline RUBY3_COMPILER_SINCE(GCC, 3, 1, 0) # define RUBY3_HAS_ATTRIBUTE_cdecl RUBY3_COMPILER_SINCE(GCC, 0, 0, 0) # define RUBY3_HAS_ATTRIBUTE_cold RUBY3_COMPILER_SINCE(GCC, 4, 3, 0) # define RUBY3_HAS_ATTRIBUTE_const RUBY3_COMPILER_SINCE(GCC, 2, 6, 0) # define RUBY3_HAS_ATTRIBUTE_deprecated RUBY3_COMPILER_SINCE(GCC, 3, 1, 0) # define RUBY3_HAS_ATTRIBUTE_dllexport RUBY3_COMPILER_SINCE(GCC, 0, 0, 0) # define RUBY3_HAS_ATTRIBUTE_dllimport RUBY3_COMPILER_SINCE(GCC, 0, 0, 0) # define RUBY3_HAS_ATTRIBUTE_error RUBY3_COMPILER_SINCE(GCC, 4, 3, 0) # define RUBY3_HAS_ATTRIBUTE_format RUBY3_COMPILER_SINCE(GCC, 0, 0, 0) # define RUBY3_HAS_ATTRIBUTE_hot RUBY3_COMPILER_SINCE(GCC, 4, 3, 0) # define RUBY3_HAS_ATTRIBUTE_leaf RUBY3_COMPILER_SINCE(GCC, 4, 6, 0) # define RUBY3_HAS_ATTRIBUTE_malloc RUBY3_COMPILER_SINCE(GCC, 3, 0, 0) # define RUBY3_HAS_ATTRIBUTE_no_address_safety_analysis RUBY3_COMPILER_SINCE(GCC, 4, 8, 0) # define RUBY3_HAS_ATTRIBUTE_no_sanitize_address RUBY3_COMPILER_SINCE(GCC, 4, 8, 0) # define RUBY3_HAS_ATTRIBUTE_no_sanitize_undefined RUBY3_COMPILER_SINCE(GCC, 4, 9, 0) # define RUBY3_HAS_ATTRIBUTE_noinline RUBY3_COMPILER_SINCE(GCC, 3, 1, 0) # define RUBY3_HAS_ATTRIBUTE_nonnull RUBY3_COMPILER_SINCE(GCC, 3, 3, 0) # define RUBY3_HAS_ATTRIBUTE_noreturn RUBY3_COMPILER_SINCE(GCC, 2, 5, 0) # define RUBY3_HAS_ATTRIBUTE_nothrow RUBY3_COMPILER_SINCE(GCC, 3, 3, 0) # define RUBY3_HAS_ATTRIBUTE_pure RUBY3_COMPILER_SINCE(GCC, 2,96, 0) # define RUBY3_HAS_ATTRIBUTE_returns_nonnull RUBY3_COMPILER_SINCE(GCC, 4, 9, 0) # define RUBY3_HAS_ATTRIBUTE_returns_twice RUBY3_COMPILER_SINCE(GCC, 4, 1, 0) # define RUBY3_HAS_ATTRIBUTE_stdcall RUBY3_COMPILER_SINCE(GCC, 0, 0, 0) # define RUBY3_HAS_ATTRIBUTE_unused RUBY3_COMPILER_SINCE(GCC, 0, 0, 0) # define RUBY3_HAS_ATTRIBUTE_visibility RUBY3_COMPILER_SINCE(GCC, 3, 3, 0) # define RUBY3_HAS_ATTRIBUTE_warn_unused_result RUBY3_COMPILER_SINCE(GCC, 3, 4, 0) # define RUBY3_HAS_ATTRIBUTE_warning RUBY3_COMPILER_SINCE(GCC, 4, 3, 0) # define RUBY3_HAS_ATTRIBUTE_weak RUBY3_COMPILER_SINCE(GCC, 0, 0, 0) # /* Note that "0, 0, 0" might be inaccurate. */ #elif RUBY3_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 RUBY3_HAS_ATTRIBUTE(_) RUBY3_TOKEN_PASTE(RUBY3_HAS_ATTRIBUTE_, _) # define RUBY3_HAS_ATTRIBUTE_alias RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_aligned RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_always_inline RUBY3_COMPILER_SINCE(SunPro, 5, 10, 0) # define RUBY3_HAS_ATTRIBUTE_const RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_constructor RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_destructor RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_malloc RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_noinline RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_noreturn RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_packed RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_pure RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_returns_twice RUBY3_COMPILER_SINCE(SunPro, 5, 10, 0) # define RUBY3_HAS_ATTRIBUTE_vector_size RUBY3_COMPILER_SINCE(SunPro, 5, 10, 0) # define RUBY3_HAS_ATTRIBUTE_visibility RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) # define RUBY3_HAS_ATTRIBUTE_weak RUBY3_COMPILER_SINCE(SunPro, 5, 9, 0) #elif defined (_MSC_VER) # define RUBY3_HAS_ATTRIBUTE(_) 0 # /* Fallback below doesn't work: see win32/Makefile.sub */ #else # /* Take config.h definition when available. */ # define RUBY3_HAS_ATTRIBUTE(_) (RUBY3_TOKEN_PASTE(RUBY3_HAS_ATTRIBUTE_, _)+0) # ifdef ALWAYS_INLINE # define RUBY3_HAS_ATTRIBUTE_always_inline 1 # endif # ifdef FUNC_CDECL # define RUBY3_HAS_ATTRIBUTE_cdecl 1 # endif # ifdef CONSTFUNC # define RUBY3_HAS_ATTRIBUTE_const 1 # endif # ifdef DEPRECATED # define RUBY3_HAS_ATTRIBUTE_deprecated 1 # endif # ifdef ERRORFUNC # define RUBY3_HAS_ATTRIBUTE_error 1 # endif # ifdef FUNC_FASTCALL # define RUBY3_HAS_ATTRIBUTE_fastcall 1 # endif # ifdef PUREFUNC # define RUBY3_HAS_ATTRIBUTE_pure 1 # endif # ifdef NO_ADDRESS_SAFETY_ANALYSIS # define RUBY3_HAS_ATTRIBUTE_no_address_safety_analysis 1 # endif # ifdef NO_SANITIZE # define RUBY3_HAS_ATTRIBUTE_no_sanitize 1 # endif # ifdef NO_SANITIZE_ADDRESS # define RUBY3_HAS_ATTRIBUTE_no_sanitize_address 1 # endif # ifdef NOINLINE # define RUBY3_HAS_ATTRIBUTE_noinline 1 # endif # ifdef RUBY3_FUNC_NONNULL # define RUBY3_HAS_ATTRIBUTE_nonnull 1 # endif # ifdef NORETURN # define RUBY3_HAS_ATTRIBUTE_noreturn 1 # endif # ifdef FUNC_OPTIMIZED # define RUBY3_HAS_ATTRIBUTE_optimize 1 # endif # ifdef FUNC_STDCALL # define RUBY3_HAS_ATTRIBUTE_stdcall 1 # endif # ifdef MAYBE_UNUSED # define RUBY3_HAS_ATTRIBUTE_unused 1 # endif # ifdef WARN_UNUSED_RESULT # define RUBY3_HAS_ATTRIBUTE_warn_unused_result 1 # endif # ifdef WARNINGFUNC # define RUBY3_HAS_ATTRIBUTE_warning 1 # endif # ifdef WEAK # define RUBY3_HAS_ATTRIBUTE_weak 1 # endif #endif #endif /* RUBY3_HAS_ATTRIBUTE_H */