stdbool.h

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#ifndef RBIMPL_STDBOOL_H                             /*-*-C++-*-vi:se ft=cpp:*/
#define RBIMPL_STDBOOL_H
#include "ruby/internal/config.h"
 
#if defined(__bool_true_false_are_defined)
# /* Take that. */
 
#elif defined(__cplusplus)
# /* bool is a keyword in C++. */
# ifndef __bool_true_false_are_defined
#  define __bool_true_false_are_defined
# endif
 
#else
# /* Take stdbool.h definition. It exists since GCC 3.0 and VS 2015. */
# include <stdbool.h>
#endif
 
#endif /* RBIMPL_STDBOOL_H */