first commit of the new libm!

[musl] / src / math / copysignl.c

diff --git a/src/math/copysignl.c b/src/math/copysignl.c
new file mode 100644 (file)
index 0000000..72a2148
--- /dev/null
+++ b/src/math/copysignl.c
@@ -0,0 +1,16 @@
+#include "libm.h"
+
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double copysignl(long double x, long double y)
+{
+       return copysign(x, y);
+}
+#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
+long double copysignl(long double x, long double y)
+{
+       union ldshape ux = {x}, uy = {y};
+
+       ux.bits.sign = uy.bits.sign;
+       return ux.value;
+}
+#endif