diff options
Diffstat (limited to 'lib/pow2.h')
-rw-r--r-- | lib/pow2.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/pow2.h b/lib/pow2.h new file mode 100644 index 00000000..2cbca1ab --- /dev/null +++ b/lib/pow2.h @@ -0,0 +1,12 @@ +#ifndef FIO_POW2_H +#define FIO_POW2_H + +#include <inttypes.h> +#include "types.h" + +static inline bool is_power_of_2(uint64_t val) +{ + return (val != 0 && ((val & (val - 1)) == 0)); +} + +#endif |