X-Git-Url: http://nsz.repo.hu/git/?p=libm;a=blobdiff_plain;f=src%2Fmath%2Fcopysign.c;h=038b8b4c46beed6c2065982a56ede5ddcab16da6;hp=814d80c4b902be3d47fd6964f6be1a6fa333b93a;hb=HEAD;hpb=fc04675a09587031d5daebcb877b73976890b71d

diff --git a/src/math/copysign.c b/src/math/copysign.c
index 814d80c..038b8b4 100644
--- a/src/math/copysign.c
+++ b/src/math/copysign.c
@@ -5,7 +5,7 @@ double copysign(double x, double y) {
 
 	ux.value = x;
 	uy.value = y;
-	ux.bits &= ~(uint64_t)1<<63;
+	ux.bits &= (uint64_t)-1>>1;
 	ux.bits |= uy.bits & (uint64_t)1<<63;
 	return ux.value;
 }