blob: 647093cebc8958b247e32750df99b70f9535a478 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
/* Enable floating-point exceptions.
Copyright (C) 2000-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <fenv.h>
int
feenableexcept (int excepts)
{
fenv_t new_exc, old_exc;
__fenv_stfsr (new_exc);
old_exc = (new_exc >> 18) & FE_ALL_EXCEPT;
new_exc |= (((fenv_t)excepts & FE_ALL_EXCEPT) << 18);
__fenv_ldfsr (new_exc);
return old_exc;
}
|
