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-rw-r--r--include/ruby/impl/attr/const.h46
1 files changed, 0 insertions, 46 deletions
diff --git a/include/ruby/impl/attr/const.h b/include/ruby/impl/attr/const.h
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index 85892ea464..0000000000
--- a/include/ruby/impl/attr/const.h
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-#ifndef RBIMPL_ATTR_CONST_H /*-*-C++-*-vi:se ft=cpp:*/
-#define RBIMPL_ATTR_CONST_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_ATTR_CONST.
- */
-#include "ruby/impl/compiler_since.h"
-#include "ruby/impl/has/attribute.h"
-#include "ruby/impl/has/declspec_attribute.h"
-
-/** Wraps (or simulates) `__attribute__((const))` */
-#if RBIMPL_HAS_ATTRIBUTE(const)
-# define RBIMPL_ATTR_CONST() __attribute__((__const__))
-#elif RBIMPL_HAS_DECLSPEC_ATTRIBUTE(noalias)
-# /* If a function can be a const, that is also a noalias. */
-# define RBIMPL_ATTR_CONST() __declspec(noalias)
-#elif RBIMPL_COMPILER_SINCE(SunPro, 5, 10, 0)
-# define RBIMPL_ATTR_CONST() _Pragma("no_side_effect")
-#else
-# define RBIMPL_ATTR_CONST() /* void */
-#endif
-
-/** Enables #RBIMPL_ATTR_CONST iff. #RUBY_NDEBUG. */
-#if RUBY_NDEBUG
-# define RBIMPL_ATTR_CONST_ON_NDEBUG() RBIMPL_ATTR_CONST()
-#else
-# define RBIMPL_ATTR_CONST_ON_NDEBUG() /* void */
-#endif
-
-#endif /* RBIMPL_ATTR_CONST_H */