X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Fmath%2F__tanl.c;h=50ba21409444d2735a612e3d4d065fbf535bb96a;hp=e39e9df44b5b79cd9713cc49e9bf8b6dab6d8b09;hb=3bb6bd85808ace7b588d1c523bb7badfd9e72650;hpb=01084202815fefbb7db23825d8b11a570c455e13

diff --git a/src/math/__tanl.c b/src/math/__tanl.c
index e39e9df4..50ba2140 100644
--- a/src/math/__tanl.c
+++ b/src/math/__tanl.c
@@ -51,8 +51,7 @@ long double __tanl(long double x, long double y, int iy) {
 	int i;
 
 	iy = iy == 1 ? -1 : 1;        /* XXX recover original interface */
-	// FIXME: this is wrong, use copysign, signbit or union bithack
-	osign = x >= 0 ? 1.0 : -1.0;  /* XXX slow, probably wrong for -0 */
+	osign = copysignl(1.0, x);
 	if (fabsl(x) >= 0.67434) {
 		if (x < 0) {
 			x = -x;