From 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 12 Jul 2007 18:26:36 +0000 Subject: 2.5-18.1 --- math/w_atan2.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 math/w_atan2.c (limited to 'math/w_atan2.c') diff --git a/math/w_atan2.c b/math/w_atan2.c new file mode 100644 index 0000000000..f0a10d4102 --- /dev/null +++ b/math/w_atan2.c @@ -0,0 +1,47 @@ +/* @(#)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. + * ==================================================== + */ + +#if defined(LIBM_SCCS) && !defined(lint) +static char rcsid[] = "$NetBSD: w_atan2.c,v 1.6 1995/05/10 20:48:39 jtc Exp $"; +#endif + +/* + * wrapper atan2(y,x) + */ + +#include +#include "math_private.h" + + +#ifdef __STDC__ + double __atan2(double y, double x) /* wrapper atan2 */ +#else + double __atan2(y,x) /* wrapper atan2 */ + double y,x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_atan2(y,x); +#else + double z; + z = __ieee754_atan2(y,x); + if(_LIB_VERSION != _SVID_||__isnan(x)||__isnan(y)) return z; + if(x==0.0&&y==0.0) + return __kernel_standard(y,x,3); /* atan2(+-0,+-0) */ + return z; +#endif +} +weak_alias (__atan2, atan2) +#ifdef NO_LONG_DOUBLE +strong_alias (__atan2, __atan2l) +weak_alias (__atan2, atan2l) +#endif -- cgit v1.2.3