diff options
Diffstat (limited to 'lib/compiler.h')
| -rw-r--r-- | lib/compiler.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/compiler.h b/lib/compiler.h index d12e282832..29fcfbefbf 100644 --- a/lib/compiler.h +++ b/lib/compiler.h @@ -439,6 +439,14 @@ _Static_assert(sizeof(_uint64_t) == 8 && sizeof(_int64_t) == 8, #pragma diag_suppress 167 #endif /* __INTELISENSE__ */ +#if defined(__GNUC__) && (__GNUC__ >= 3) +#define likely(_x) __builtin_expect(!!(_x), 1) +#define unlikely(_x) __builtin_expect(!!(_x), 0) +#else +#define likely(_x) !!(_x) +#define unlikely(_x) !!(_x) +#endif + #ifdef __cplusplus } #endif |