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3846ef75 | 1 | /* Set floating-point environment exception handling. |
6d7e8eda | 2 | Copyright (C) 1997-2023 Free Software Foundation, Inc. |
3846ef75 UD |
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 | |
41bdb6e2 AJ |
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. | |
3846ef75 UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
3846ef75 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
3846ef75 UD |
18 | |
19 | #include <fenv.h> | |
20 | #include <math.h> | |
21 | #include <fpu_control.h> | |
22 | ||
23 | int | |
e26dd47f | 24 | fesetexceptflag (const fexcept_t *flagp, int excepts) |
3846ef75 | 25 | { |
04fb54b5 | 26 | fpu_control_t temp; |
3846ef75 UD |
27 | |
28 | /* Get the current environment. */ | |
29 | _FPU_GETCW (temp); | |
30 | ||
31 | /* Set the desired exception mask. */ | |
32 | temp &= ~(excepts & FE_ALL_EXCEPT); | |
33 | temp |= (*flagp & excepts & FE_ALL_EXCEPT); | |
34 | ||
35 | /* Save state back to the FPU. */ | |
36 | _FPU_SETCW (temp); | |
37 | ||
38 | return 0; | |
39 | } |