1/* @(#)w_hypot.c 5.1 93/09/24 */
2/*
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
5 *
6 * Developed at SunPro, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
9 * is preserved.
10 * ====================================================
11 */
12
13#include <sys/cdefs.h>
14#if defined(LIBM_SCCS) && !defined(lint)
15__RCSID("$NetBSD: w_hypot.c,v 1.9 2002/05/26 22:02:01 wiz Exp $");
16#endif
17
18/*
19 * wrapper hypot(x,y)
20 */
21
22#include "namespace.h"
23#include "math.h"
24#include "math_private.h"
25
26#ifdef __weak_alias
27__weak_alias(hypot, _hypot)
28#endif
29
30double
31hypot(double x, double y)/* wrapper hypot */
32{
33#ifdef _IEEE_LIBM
34	return __ieee754_hypot(x,y);
35#else
36	double z;
37	z = __ieee754_hypot(x,y);
38	if(_LIB_VERSION == _IEEE_) return z;
39	if((!finite(z))&&finite(x)&&finite(y))
40	    return __kernel_standard(x,y,4); /* hypot overflow */
41	else
42	    return z;
43#endif
44}
45