lib/libm/src/w_hypot.c
/* @(#)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.
 * ====================================================
 */

#include <sys/cdefs.h>
#if defined(LIBM_SCCS) && !defined(lint)
__RCSID("$NetBSD: w_hypot.c,v 1.10 2007/08/10 21:20:36 drochner Exp $");
#endif

/*
 * wrapper hypot(x,y)
 */

#include "namespace.h"
#include "math.h"
#include "math_private.h"

#ifdef __weak_alias
__weak_alias(hypot, _hypot)
#endif

double
hypot(double x, double y)/* wrapper hypot */
{
#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
}
