const.h

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#ifndef RBIMPL_ATTR_CONST_H                          /*-*-C++-*-vi:se ft=cpp:*/
#define RBIMPL_ATTR_CONST_H
#include "ruby/internal/compiler_since.h"
#include "ruby/internal/has/attribute.h"
#include "ruby/internal/has/declspec_attribute.h"

#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

#if !defined(RUBY_DEBUG) || !RUBY_DEBUG
# define RBIMPL_ATTR_CONST_UNLESS_DEBUG() RBIMPL_ATTR_CONST()
#else
# define RBIMPL_ATTR_CONST_UNLESS_DEBUG() /* void */
#endif
 
#endif /* RBIMPL_ATTR_CONST_H */