blob: 23c6e5352f7aa54022f8da3856f8c8cd18ff91b3 (
plain)
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
36
37
38
39
|
/* Test exception in current environment.
Copyright (C) 1997-2021 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>
#include <unistd.h>
#include <dl-procinfo.h>
#include <ldsodefs.h>
int
fetestexcept (int excepts)
{
short temp;
int xtemp = 0;
/* Get current exceptions. */
__asm__ ("fnstsw %0" : "=a" (temp));
/* If the CPU supports SSE we test the MXCSR as well. */
if (CPU_FEATURE_USABLE (SSE))
__asm__ ("stmxcsr %0" : "=m" (*&xtemp));
return (temp | xtemp) & excepts & FE_ALL_EXCEPT;
}
libm_hidden_def (fetestexcept)
|
