Totally rework the math library, this time based on the MacOs X

math library (which is itself based on the math lib from FreeBSD).
 -Erik

1 files changed, 43 insertions, 0 deletions

diff --git a/libm/w_hypot.c b/libm/w_hypot.c
new file mode 100644
index 000000000..8ff7efaba
--- /dev/null
+++ b/libm/w_hypot.c
@@ -0,0 +1,43 @@
+/* @(#)w_hypot.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.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: w_hypot.c,v 1.6 1995/05/10 20:49:07 jtc Exp $";
+#endif
+
+/*
+ * wrapper hypot(x,y)
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+
+#ifdef __STDC__
+	double hypot(double x, double y)/* wrapper hypot */
+#else
+	double hypot(x,y)		/* wrapper hypot */
+	double x,y;
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_hypot(x,y);
+#else
+	double z;
+	z = __ieee754_hypot(x,y);
+	if(_LIB_VERSION == _IEEE_) return z;
+	if((!finite(z))&&finite(x)&&finite(y))
+	    return __kernel_standard(x,y,4); /* hypot overflow */
+	else
+	    return z;
+#endif
+}