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b168057a | 1 | /* Copyright (C) 1997-2015 Free Software Foundation, Inc. |
554066b8 MS |
2 | |
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 License as | |
7 | published by the Free Software Foundation; either version 2.1 of the | |
8 | 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 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <fenv.h> | |
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20 | #include <fpu_control.h> |
21 | ||
22 | int | |
23 | fesetexceptflag (const fexcept_t *flagp, int excepts) | |
24 | { | |
25 | fpu_fpsr_t fpsr; | |
e5e0d9a4 | 26 | fpu_fpsr_t fpsr_new; |
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27 | |
28 | /* Get the current environment. */ | |
29 | _FPU_GETFPSR (fpsr); | |
e226de33 | 30 | excepts &= FE_ALL_EXCEPT; |
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31 | |
32 | /* Set the desired exception mask. */ | |
e226de33 WD |
33 | fpsr_new = fpsr & ~excepts; |
34 | fpsr_new |= *flagp & excepts; | |
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35 | |
36 | /* Save state back to the FPU. */ | |
e5e0d9a4 IB |
37 | if (fpsr != fpsr_new) |
38 | _FPU_SETFPSR (fpsr_new); | |
554066b8 MS |
39 | |
40 | return 0; | |
41 | } |