diff options
Diffstat (limited to 'internal.h')
-rw-r--r-- | internal.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/internal.h b/internal.h index a8f4240059..0bac79e012 100644 --- a/internal.h +++ b/internal.h @@ -261,6 +261,15 @@ nlz_int128(uint128_t x) #endif static inline int +nlz_intptr(uintptr_t x) { +#if SIZEOF_VOIDP == 8 + return nlz_long_long(x); +#elif SIZEOF_VOIDP == 4 + return nlz_int(x); +#endif +} + +static inline int rb_popcount32(uint32_t x) { x = (x & 0x55555555) + (x >> 1 & 0x55555555); x = (x & 0x33333333) + (x >> 2 & 0x33333333); |