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authorDenys Vlasenko <vda.linux@googlemail.com>2017-04-09 22:28:26 (GMT)
committerDenys Vlasenko <vda.linux@googlemail.com>2017-04-09 22:28:26 (GMT)
commitbef17132175945a121992e3d13f0cc78ae722b1b (patch)
tree53903a0349eecdbc7efcbe1cfce749211c1d88f4
parentc6476dca5484a9413d20dcbf887cc78055e6965f (diff)
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factor: a bit more simple isqrt
function old new delta isqrt_odd 87 80 -7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--coreutils/factor.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/coreutils/factor.c b/coreutils/factor.c
index 48833e1..8ca3de7 100644
--- a/coreutils/factor.c
+++ b/coreutils/factor.c
@@ -62,7 +62,7 @@ static inline half_t isqrt(wide_t N)
*/
x = HALF_MAX;
mask_2bits = TOPMOST_WIDE_BIT | (TOPMOST_WIDE_BIT >> 1);
- while (mask_2bits && !(N & mask_2bits)) {
+ while (!(N & mask_2bits)) {
x >>= 1;
mask_2bits >>= 2;
}