]>
Commit | Line | Data |
---|---|---|
c72aa4a2 | 1 | /* Clear given exceptions in current floating-point environment. |
2b778ceb | 2 | Copyright (C) 1997-2021 Free Software Foundation, Inc. |
c72aa4a2 | 3 | This file is part of the GNU C Library. |
c72aa4a2 UD |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
3214b89b AJ |
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. | |
c72aa4a2 UD |
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 | |
3214b89b | 13 | Lesser General Public License for more details. |
c72aa4a2 | 14 | |
3214b89b | 15 | You should have received a copy of the GNU Lesser General Public |
ab84e3ff | 16 | License along with the GNU C Library. If not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
c72aa4a2 UD |
18 | |
19 | #include <fenv.h> | |
20 | ||
146bade7 UD |
21 | int |
22 | __feclearexcept (int excepts) | |
c72aa4a2 UD |
23 | { |
24 | fexcept_t fpsr; | |
25 | ||
26 | /* Mask out unsupported bits/exceptions. */ | |
27 | excepts &= FE_ALL_EXCEPT; | |
28 | ||
29 | /* Fetch the fpu status register. */ | |
30 | __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); | |
31 | ||
32 | /* Clear the relevant bits. */ | |
33 | fpsr &= ~excepts; | |
34 | ||
35 | /* Put the new data in effect. */ | |
36 | __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr)); | |
146bade7 UD |
37 | |
38 | /* Success. */ | |
39 | return 0; | |
c72aa4a2 | 40 | } |
60446d7a RM |
41 | |
42 | #include <shlib-compat.h> | |
43 | #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) | |
146bade7 | 44 | strong_alias (__feclearexcept, __old_feclearexcept) |
60446d7a RM |
45 | compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1); |
46 | #endif | |
47 | ||
5b5b04d6 | 48 | libm_hidden_ver (__feclearexcept, feclearexcept) |
60446d7a | 49 | versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2); |