blob: 6fc8051e4837254e5553c7d624fe7034772c2752 (
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
|
/* Test exception in current environment.
Copyright (C) 2000-2023 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
fetestexcept (int excepts)
{
union { unsigned long long l; unsigned int sw[2]; } s;
/* Get the current status word. */
__asm__ ("fstd %%fr0,0(%1) \n\t"
"fldd 0(%1),%%fr0 \n\t"
: "=m" (s.l) : "r" (&s.l));
return (s.sw[0] >> 27) & excepts & FE_ALL_EXCEPT;
}
libm_hidden_def (fetestexcept)
|
