]>
Commit | Line | Data |
---|---|---|
e17e51b4 UD |
1 | /* Disable floating-point exceptions. |
2 | Copyright (C) 2001 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | Contributed by Philip Blundell <philb@gnu.org>, 2001. | |
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. | |
e17e51b4 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. |
e17e51b4 | 15 | |
41bdb6e2 AJ |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | 02111-1307 USA. */ | |
e17e51b4 UD |
20 | |
21 | #include <fenv.h> | |
22 | #include <fpu_control.h> | |
23 | ||
24 | int | |
25 | fedisableexcept (int excepts) | |
26 | { | |
27 | unsigned long int new_exc, old_exc; | |
28 | ||
29 | _FPU_GETCW(new_exc); | |
30 | ||
31 | old_exc = (new_exc >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT; | |
32 | ||
33 | excepts &= FE_ALL_EXCEPT; | |
34 | ||
35 | new_exc &= ~(excepts << FE_EXCEPT_SHIFT); | |
36 | ||
37 | _FPU_SETCW(new_exc); | |
38 | ||
39 | return old_exc; | |
40 | } |