diff options
Diffstat (limited to 'include/ruby/3/has/cpp_attribute.h')
| -rw-r--r-- | include/ruby/3/has/cpp_attribute.h | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/include/ruby/3/has/cpp_attribute.h b/include/ruby/3/has/cpp_attribute.h index 70bec4a267..42209c0955 100644 --- a/include/ruby/3/has/cpp_attribute.h +++ b/include/ruby/3/has/cpp_attribute.h @@ -1,4 +1,6 @@ -/** \noop-*-C++-*-vi:ft=cpp +#ifndef RUBY3_HAS_CPP_ATTRIBUTE_H /*-*-C++-*-vi:se ft=cpp:*/ +#define RUBY3_HAS_CPP_ATTRIBUTE_H +/** * @file * @author Ruby developers <ruby-core@ruby-lang.org> * @copyright This file is a part of the programming language Ruby. @@ -21,10 +23,7 @@ #include "ruby/3/compiler_is.h" /** @cond INTERNAL_MACRO */ -#if defined(RUBY3_HAS_CPP_ATTRIBUTE0) -# /* Take that. */ - -#elif defined(__has_cpp_attribute) +#if defined(__has_cpp_attribute) # define RUBY3_HAS_CPP_ATTRIBUTE0(_) __has_cpp_attribute(_) #elif RUBY3_COMPILER_IS(MSVC) @@ -66,15 +65,13 @@ /** @endcond */ /** Wraps (or simulates) `__has_cpp_attribute`. */ -#ifdef RUBY3_HAS_CPP_ATTRIBUTE -# /* Take that. */ - -#elif ! defined(__cplusplus) +#if ! defined(__cplusplus) # /* Makes no sense. */ # define RUBY3_HAS_CPP_ATTRIBUTE(_) 0 - #else # /* GCC needs workarounds. See https://gcc.godbolt.org/z/jdz3pa */ # define RUBY3_HAS_CPP_ATTRIBUTE(_) \ ((RUBY3_HAS_CPP_ATTRIBUTE0(_) <= __cplusplus) ? RUBY3_HAS_CPP_ATTRIBUTE0(_) : 0) #endif + +#endif /* RUBY3_HAS_CPP_ATTRIBUTE_H */ |