/* @(#)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 <math.h> #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