libm/copysign: respect signed zero/NaN in copysign

2024-07-31 20:34:15 +08:00 · 2024-07-31 20:34:15 +08:00 · 871cd306c5
commit 871cd306c5
parent b35f7aed48
2 changed files with 2 additions and 2 deletions
--- a/libs/libm/libm/lib_copysign.c
+++ b/libs/libm/libm/lib_copysign.c
@ -34,7 +34,7 @@
 #ifdef CONFIG_HAVE_DOUBLE
 double copysign(double x, double y)
 {
-  if (y < 0)
+  if (signbit(y))
    {
      return -fabs(x);
    }
--- a/libs/libm/libm/lib_copysignl.c
+++ b/libs/libm/libm/lib_copysignl.c
@ -34,7 +34,7 @@
 #ifdef CONFIG_HAVE_LONG_DOUBLE
 long double copysignl(long double x, long double y)
 {
-  if (y < 0)
+  if (signbit(y))
    {
      return -fabsl(x);
    }