Likely.h

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#ifndef ELEMENTSKERNEL_ELEMENTSKERNEL_LIKELY_H_
#define ELEMENTSKERNEL_ELEMENTSKERNEL_LIKELY_H_
 
#ifdef __GNUC__
#define LIKELY(x) __builtin_expect(not not(x), 1)
#define UNLIKELY(x) __builtin_expect(not not(x), 0)
#else
#define LIKELY(x) x
#define UNLIKELY(x) x
#endif
 
#endif  // ELEMENTSKERNEL_ELEMENTSKERNEL_LIKELY_H_