projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 15a946b5 | 1 | /* Disable floating-point exceptions. |
| 04277e02 | 2 | Copyright (C) 2012-2019 Free Software Foundation, Inc. |
| 15a946b5 KK |
3 | This file is part of the GNU C Library. |
| 4 | Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012. | |
| 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 | |
| 17 | License along with the GNU C Library; if not, see | |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| 19 | ||
| 20 | #include <fenv.h> | |
| 21 | #include <fpu_control.h> | |
| 22 | ||
| 23 | int | |
| 24 | fedisableexcept (int excepts) | |
| 25 | { | |
| 04fb54b5 | 26 | fpu_control_t temp, old_exc; |
| 15a946b5 KK |
27 | |
| 28 | /* Get the current control register contents. */ | |
| 29 | _FPU_GETCW (temp); | |
| 30 | ||
| 31 | old_exc = (temp >> 5) & FE_ALL_EXCEPT; | |
| 32 | ||
| 33 | excepts &= FE_ALL_EXCEPT; | |
| 34 | ||
| 35 | temp &= ~(excepts << 5); | |
| 36 | _FPU_SETCW (temp); | |
| 37 | ||
| 38 | return old_exc; | |
| 39 | } |