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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/libm-ieee754/w_atan2.c
abfe64ae6162a4afe59f022d18f1c4fda402c902
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 $";
22 #include "math_private.h"
26 double __atan2(double y
, double x
) /* wrapper atan2 */
28 double __atan2(y
,x
) /* wrapper atan2 */
33 return __ieee754_atan2(y
,x
);
36 z
= __ieee754_atan2(y
,x
);
37 if(_LIB_VERSION
== _IEEE_
||__isnan(x
)||__isnan(y
)) return z
;
39 return __kernel_standard(y
,x
,3); /* atan2(+-0,+-0) */
44 weak_alias (__atan2
, atan2
)