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3ab8611a | 1 | /* Store current floating-point environment and clear exceptions. |
581c785b | 2 | Copyright (C) 2020-2022 Free Software Foundation, Inc. |
3ab8611a VG |
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) |