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 <fenv.h> |
20 | #include <math.h> |
21 | #include <math_private.h> |
22 | |
23 | |
24 | /* wrapper acosl */ |
25 | long double |
26 | __acosl (long double x) |
27 | { |
28 | if (__builtin_expect (isgreater (fabsl (x), 1.0L), 0) |
29 | && _LIB_VERSION != _IEEE_) |
30 | { |
31 | /* acos(|x|>1) */ |
32 | feraiseexcept (FE_INVALID); |
33 | return __kernel_standard_l (x, x, 201); |
34 | } |
35 | |
36 | return __ieee754_acosl (x); |
37 | } |
38 | weak_alias (__acosl, acosl) |
39 | |