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- /* Copyright (C) 2011-2016 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 atanhf */
- float
- atanhf (float x)
- {
- #if defined(__UCLIBC_HAS_FENV__)
- if (__builtin_expect (isgreaterequal (fabsf (x), 1.0f), 0)
- && _LIB_VERSION != _IEEE_)
- return __kernel_standard_f (x, x,
- fabsf (x) > 1.0f
- ? 130 /* atanh(|x|>1) */
- : 131); /* atanh(|x|==1) */
- #endif
- return (float) __ieee754_atanh ((double) x);
- }
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