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/* @(#)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.
* ====================================================
*/
#include <LibConfig.h>
#include <sys/EfiCdefs.h>
#if defined(LIBM_SCCS) && !defined(lint)
__RCSID("$NetBSD: w_atan2.c,v 1.9 2002/05/26 22:01:59 wiz Exp $");
#endif
/*
* wrapper atan2(y,x)
*/
#include "math.h"
#include "math_private.h"
double
atan2(double y, double x) /* wrapper atan2 */
{
#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
}
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