1 /* @(#)w_atan2.c 5.1 93/09/24 */
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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
10 * ====================================================
13 #if defined(LIBM_SCCS) && !defined(lint)
14 static char rcsid[] = "$NetBSD: w_atan2.c,v 1.6 1995/05/10 20:48:39 jtc Exp $";
21 #include "math_private.h"
25 double atan2(double y, double x) /* wrapper atan2 */
27 double atan2(y,x) /* wrapper atan2 */
32 return __ieee754_atan2(y,x);
35 z = __ieee754_atan2(y,x);
36 if(_LIB_VERSION == _IEEE_||isnan(x)||isnan(y)) return z;
38 return __kernel_standard(y,x,3); /* atan2(+-0,+-0) */