diff options
Diffstat (limited to 'include/gras/gras.hpp')
| -rw-r--r-- | include/gras/gras.hpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/gras/gras.hpp b/include/gras/gras.hpp index 748e682..6d1808b 100644 --- a/include/gras/gras.hpp +++ b/include/gras/gras.hpp @@ -57,6 +57,15 @@ #define GRAS_FORCE_INLINE inline #endif +//want to have fun with branch prediction hints? +#ifdef __GNUC__ + #define GRAS_LIKELY(expr) (__builtin_expect(bool(expr), 1)) + #define GRAS_UNLIKELY(expr) (__builtin_expect(bool(expr), 0)) +#else + #define GRAS_LIKELY(expr) (expr) + #define GRAS_UNLIKELY(expr) (expr) +#endif + namespace gras { //! Typedef for absolute item indexes |