1 files changed, 38 insertions, 0 deletions
diff --git a/lib/msun/src/s_copysign.c b/lib/msun/src/s_copysign.c
new file mode 100644
index 0000000..4f758d2
--- /dev/null
+++ b/lib/msun/src/s_copysign.c
@@ -0,0 +1,38 @@
+/* @(#)s_copysign.c 5.1 93/09/24 */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#ifndef lint
+static char rcsid[] = "$FreeBSD$";
+#endif
+
+/*
+ * copysign(double x, double y)
+ * copysign(x,y) returns a value with the magnitude of x and
+ * with the sign bit of y.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+	double __generic_copysign(double x, double y)
+#else
+	double __generic_copysign(x,y)
+	double x,y;
+#endif
+{
+	u_int32_t hx,hy;
+	GET_HIGH_WORD(hx,x);
+	GET_HIGH_WORD(hy,y);
+	SET_HIGH_WORD(x,(hx&0x7fffffff)|(hy&0x80000000));
+        return x;
+}