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-rw-r--r--libc-top-half/musl/src/math/copysignl.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/math/copysignl.c b/libc-top-half/musl/src/math/copysignl.c
new file mode 100644
index 0000000..9dd933c
--- /dev/null
+++ b/libc-top-half/musl/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.i.se &= 0x7fff;
+ ux.i.se |= uy.i.se & 0x8000;
+ return ux.f;
+}
+#endif