| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2011-2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Ulrich Drepper <drepper@gmail.com>, 2011. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <math.h> |
| 20 | #include <math_private.h> |
| 21 | |
| 22 | |
| 23 | /* wrapper acosh */ |
| 24 | double |
| 25 | __acosh (double x) |
| 26 | { |
| 27 | if (__builtin_expect (isless (x, 1.0), 0) && _LIB_VERSION != _IEEE_) |
| 28 | /* acosh(x<1) */ |
| 29 | return __kernel_standard (x, x, 29); |
| 30 | |
| 31 | return __ieee754_acosh (x); |
| 32 | } |
| 33 | weak_alias (__acosh, acosh) |
| 34 | #ifdef NO_LONG_DOUBLE |
| 35 | strong_alias (__acosh, __acoshl) |
| 36 | weak_alias (__acosh, acoshl) |
| 37 | #endif |