1 files changed, 43 insertions, 0 deletions
diff --git a/lib/msun/src/w_atan2.c b/lib/msun/src/w_atan2.c
new file mode 100644
index 0000000..8f4c826
--- /dev/null
+++ b/lib/msun/src/w_atan2.c
@@ -0,0 +1,43 @@
+/* @(#)w_atan2.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
+
+/*
+ * wrapper atan2(y,x)
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+
+#ifdef __STDC__
+	double atan2(double y, double x)	/* wrapper atan2 */
+#else
+	double atan2(y,x)			/* wrapper atan2 */
+	double y,x;
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_atan2(y,x);
+#else
+	double z;
+	z = __ieee754_atan2(y,x);
+	if(_LIB_VERSION == _IEEE_||isnan(x)||isnan(y)) return z;
+	if(x==0.0&&y==0.0) {
+	        return __kernel_standard(y,x,3); /* atan2(+-0,+-0) */
+	} else
+	    return z;
+#endif
+}