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3846ef75 | 1 | /* Clear given exceptions in current floating-point environment. |
04277e02 | 2 | Copyright (C) 1998-2019 Free Software Foundation, Inc. |
3846ef75 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1998. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
3846ef75 UD |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
3846ef75 | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
3846ef75 UD |
19 | |
20 | #include <fenv.h> | |
21 | #include <fpu_control.h> | |
22 | ||
23 | int | |
e26dd47f | 24 | feclearexcept (int excepts) |
3846ef75 | 25 | { |
04fb54b5 | 26 | fpu_control_t cw; |
3846ef75 UD |
27 | |
28 | /* Mask out unsupported bits/exceptions. */ | |
29 | excepts &= FE_ALL_EXCEPT; | |
30 | ||
31 | /* Read the complete control word. */ | |
32 | _FPU_GETCW (cw); | |
33 | ||
34 | /* Clear exception bits. */ | |
35 | cw &= ~excepts; | |
9c84384c | 36 | |
3846ef75 UD |
37 | /* Put the new data in effect. */ |
38 | _FPU_SETCW (cw); | |
39 | ||
40 | return 0; | |
41 | } | |
5b5b04d6 | 42 | libm_hidden_def (feclearexcept) |