diff options
Diffstat (limited to 'math/w_atanh_compat.c')
| -rw-r--r-- | math/w_atanh_compat.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/math/w_atanh_compat.c b/math/w_atanh_compat.c new file mode 100644 index 0000000000..456dcb34e7 --- /dev/null +++ b/math/w_atanh_compat.c @@ -0,0 +1,40 @@ +/* Copyright (C) 2011-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gmail.com>, 2011. + + 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. + + 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, see + <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> + + +/* wrapper atanh */ +double +__atanh (double x) +{ + if (__builtin_expect (isgreaterequal (fabs (x), 1.0), 0) + && _LIB_VERSION != _IEEE_) + return __kernel_standard (x, x, + fabs (x) > 1.0 + ? 30 /* atanh(|x|>1) */ + : 31); /* atanh(|x|==1) */ + + return __ieee754_atanh (x); +} +weak_alias (__atanh, atanh) +#ifdef NO_LONG_DOUBLE +strong_alias (__atanh, __atanhl) +weak_alias (__atanh, atanhl) +#endif |