1 | /* Store current floating-point environment and clear exceptions |
2 | (soft-float edition). |
3 | Copyright (C) 2002-2024 Free Software Foundation, Inc. |
4 | This file is part of the GNU C Library. |
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 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | #include "soft-fp.h" |
21 | #include "soft-supp.h" |
22 | |
23 | int |
24 | __feholdexcept (fenv_t *envp) |
25 | { |
26 | fenv_union_t u; |
27 | |
28 | /* Get the current state. */ |
29 | __fegetenv (envp: envp); |
30 | |
31 | u.fenv = *envp; |
32 | /* Clear everything except the rounding mode. */ |
33 | u.l[0] &= 0x3; |
34 | /* Disable exceptions */ |
35 | u.l[1] = FE_ALL_EXCEPT; |
36 | |
37 | /* Put the new state in effect. */ |
38 | __fesetenv (envp: &u.fenv); |
39 | |
40 | return 0; |
41 | } |
42 | libm_hidden_def (__feholdexcept) |
43 | weak_alias (__feholdexcept, feholdexcept) |
44 | libm_hidden_weak (feholdexcept) |
45 | |