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af43a565 | 1 | /* Set floating-point environment exception handling. |
d4697bc9 | 2 | Copyright (C) 1998-2014 Free Software Foundation, Inc. |
af43a565 AJ |
3 | This file is part of the GNU C Library. |
4 | Contributed by Hartvig Ekner <hartvige@mips.com>, 2002. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
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. | |
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 | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
ab84e3ff PE |
17 | License along with the GNU C Library. If not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
af43a565 AJ |
19 | |
20 | #include <fenv.h> | |
21 | #include <fpu_control.h> | |
22 | ||
23 | int | |
24 | fesetexceptflag (const fexcept_t *flagp, int excepts) | |
25 | { | |
af7eda0f | 26 | fpu_control_t temp; |
af43a565 AJ |
27 | |
28 | /* Get the current exceptions. */ | |
29 | _FPU_GETCW (temp); | |
30 | ||
31 | /* Make sure the flags we want restored are legal. */ | |
32 | excepts &= FE_ALL_EXCEPT; | |
33 | ||
34 | /* Now clear the bits called for, and copy them in from flagp. Note that | |
35 | we ignore all non-flag bits from *flagp, so they don't matter. */ | |
36 | temp = (temp & ~excepts) | (*flagp & excepts); | |
37 | ||
38 | _FPU_SETCW (temp); | |
39 | ||
40 | /* Success. */ | |
41 | return 0; | |
42 | } |