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/* likely()/unlikely() macros for branch optimization
* By Jody Bruchon <jody@jodybruchon.com>
* Released to the public domain */
#ifndef LIKELY_UNLIKELY_H
#define LIKELY_UNLIKELY_H
#ifdef __cplusplus
extern "C" {
#endif
/* Un-define if already defined */
#if !defined NO_LIKELY_UNLIKELY && (defined __GNUC__ || defined __clang__)
#ifdef likely
#undef likely
#endif
#ifdef unlikely
#undef unlikely
#endif
#define likely(a) __builtin_expect((a), 1)
#define unlikely(a) __builtin_expect((a), 0)
#else /* no GCC/Clang */
#define likely(a) a
#define unlikely(a) a
#endif
#ifdef __cplusplus
}
#endif
#endif /* LIKELY_UNLIKELY_H */
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