| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Clear given exceptions in current floating-point environment. |
| 2 | Copyright (C) 1997-2016 Free Software Foundation, Inc. |
| 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 |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the 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> |
| 20 | #include <fpu_control.h> |
| 21 | #include <arm-features.h> |
| 22 | |
| 23 | |
| 24 | int |
| 25 | feclearexcept (int excepts) |
| 26 | { |
| 27 | fpu_control_t fpscr, new_fpscr; |
| 28 | |
| 29 | /* Fail if a VFP unit isn't present unless nothing needs to be done. */ |
| 30 | if (!ARM_HAVE_VFP) |
| 31 | return (excepts != 0); |
| 32 | |
| 33 | _FPU_GETCW (fpscr); |
| 34 | excepts &= FE_ALL_EXCEPT; |
| 35 | new_fpscr = fpscr & ~excepts; |
| 36 | |
| 37 | /* Write new exception flags if changed. */ |
| 38 | if (new_fpscr != fpscr) |
| 39 | _FPU_SETCW (new_fpscr); |
| 40 | |
| 41 | return 0; |
| 42 | } |
| 43 | libm_hidden_def (feclearexcept) |