diff options
Diffstat (limited to 'src/util')
| -rw-r--r-- | src/util/bitscan.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/util/bitscan.h b/src/util/bitscan.h index 5cc75f0beba..dc89ac93f28 100644 --- a/src/util/bitscan.h +++ b/src/util/bitscan.h @@ -123,6 +123,17 @@ util_is_power_of_two_or_zero(unsigned v) return (v & (v - 1)) == 0; } +/* Determine if an uint64_t value is a power of two. + * + * \note + * Zero is treated as a power of two. + */ +static inline bool +util_is_power_of_two_or_zero64(uint64_t v) +{ + return (v & (v - 1)) == 0; +} + /* Determine if an unsigned value is a power of two. * * \note |