diff options
Diffstat (limited to 'math/w_atanhl.c')
| -rw-r--r-- | math/w_atanhl.c | 66 |
1 files changed, 25 insertions, 41 deletions
diff --git a/math/w_atanhl.c b/math/w_atanhl.c index c61229c..7c958f1 100644 --- a/math/w_atanhl.c +++ b/math/w_atanhl.c @@ -1,52 +1,36 @@ -/* w_atanhl.c -- long double version of w_atanh.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. -/* - * wrapper atanhl(x) - */ + 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. */ #include <math.h> #include <math_private.h> -#ifdef __STDC__ - long double __atanhl(long double x) /* wrapper atanhl */ -#else - long double __atanhl(x) /* wrapper atanhl */ - long double x; -#endif +/* wrapper atanhl */ +long double +__atanhl (long double x) { -#ifdef _IEEE_LIBM - return __ieee754_atanhl(x); -#else - long double z,y; - z = __ieee754_atanhl(x); - if(_LIB_VERSION == _IEEE_ || __isnanl(x)) return z; - y = fabsl(x); - if(y>=1.0) { - if(y>1.0) - return __kernel_standard(x,x,230); /* atanhl(|x|>1) */ - else - return __kernel_standard(x,x,231); /* atanhl(|x|==1) */ - } else - return z; -#endif + if (__builtin_expect (fabsl (x) >= 1.0L, 0) && _LIB_VERSION != _IEEE_) + return __kernel_standard (x, x, + fabsl (x) > 1.0L + ? 230 /* atanh(|x|>1) */ + : 231); /* atanh(|x|==1) */ + + return __ieee754_atanhl (x); } weak_alias (__atanhl, atanhl) |