1 | /* Store current floating-point environment and clear exceptions. |
2 | Copyright (C) 2020-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
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 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <fenv.h> |
20 | #include <fenv_private.h> |
21 | |
22 | int |
23 | __feholdexcept (fenv_t *envp) |
24 | { |
25 | unsigned int fpcr; |
26 | unsigned int fpsr; |
27 | |
28 | _FPU_GETCW (fpcr); |
29 | _FPU_GETS (fpsr); |
30 | |
31 | envp->__fpcr = fpcr; |
32 | envp->__fpsr = fpsr; |
33 | |
34 | fpsr &= ~FE_ALL_EXCEPT; |
35 | |
36 | _FPU_SETCW (fpcr); |
37 | _FPU_SETS (fpsr); |
38 | |
39 | return 0; |
40 | } |
41 | libm_hidden_def (__feholdexcept) |
42 | weak_alias (__feholdexcept, feholdexcept) |
43 | libm_hidden_weak (feholdexcept) |
44 | |