diff options
Diffstat (limited to 'math/w_atan2l.c')
| -rw-r--r-- | math/w_atan2l.c | 55 |
1 files changed, 22 insertions, 33 deletions
diff --git a/math/w_atan2l.c b/math/w_atan2l.c index 85d6f5dd7d..c4854993a5 100644 --- a/math/w_atan2l.c +++ b/math/w_atan2l.c @@ -1,22 +1,21 @@ -/* w_atan2l.c -- long double version of w_atan2.c. - * Conversion to long double by Ulrich Drepper, - * Cygnus Support, drepper@cygnus.com. - */ +/* Copyright (C) 2011 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gmail.com>, 2011. -/* - * ==================================================== - * 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. - * ==================================================== - */ + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: $"; -#endif + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ /* * wrapper atan2l(y,x) @@ -26,22 +25,12 @@ static char rcsid[] = "$NetBSD: $"; #include <math_private.h> -#ifdef __STDC__ - long double __atan2l(long double y, long double x) /* wrapper atan2l */ -#else - long double __atan2l(y,x) /* wrapper atan2l */ - long double y,x; -#endif +long double +__atan2l (long double y, long double x) { -#ifdef _IEEE_LIBM - return __ieee754_atan2l(y,x); -#else - long double z; - z = __ieee754_atan2l(y,x); - if(_LIB_VERSION != _SVID_||__isnanl(x)||__isnanl(y)) return z; - if(x==0.0&&y==0.0) - return __kernel_standard(y,x,203); /* atan2(+-0,+-0) */ - return z; -#endif + if (__builtin_expect (x == 0.0L && y == 0.0L, 0) && _LIB_VERSION == _SVID_) + return __kernel_standard (y, x, 203); /* atan2(+-0,+-0) */ + + return __ieee754_atan2l (y, x); } weak_alias (__atan2l, atan2l) |