diff options
Diffstat (limited to 'libcrystfel/src/utils.h')
| -rw-r--r-- | libcrystfel/src/utils.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/libcrystfel/src/utils.h b/libcrystfel/src/utils.h index 4478f179..2f2009d6 100644 --- a/libcrystfel/src/utils.h +++ b/libcrystfel/src/utils.h @@ -228,7 +228,6 @@ static inline int within_tolerance(double a, double b, double percent) /* Photon energy (eV) to wavelength (m) */ #define ph_eV_to_lambda(a) ph_en_to_lambda(eV_to_J(a)) -#define UNUSED __attribute__((unused)) /* ------------------------------ Message macros ---------------------------- */ @@ -261,6 +260,19 @@ extern pthread_mutex_t stderr_lock; extern char *check_prefix(char *prefix); extern char *safe_basename(const char *in); + +/* ------------------------------ Useful stuff ------------------------------ */ + +#if __GNUC__ >= 3 +#define UNUSED __attribute__((unused)) +#define likely(x) __builtin_expect (!!(x), 1) +#define unlikely(x) __builtin_expect (!!(x), 0) +#else +#define UNUSED +#define likely(x) (x) +#define unlikely(x) (x) +#endif + #ifdef __cplusplus } #endif |