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support ld80 pseudo-denormal invalid bit patterns; treat them as nan
[oweals/musl.git]
/
src
/
math
/
__tanl.c
diff --git
a/src/math/__tanl.c
b/src/math/__tanl.c
index e39e9df44b5b79cd9713cc49e9bf8b6dab6d8b09..50ba21409444d2735a612e3d4d065fbf535bb96a 100644
(file)
--- 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 */
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;
if (fabsl(x) >= 0.67434) {
if (x < 0) {
x = -x;