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
40
41
42
43
44
|
/* Store current floating-point environment and clear exceptions.
Copyright (C) 1997, 1998, 1999, 2000, 2005, 2010
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <fenv.h>
#include <fpu_control.h>
int
feholdexcept (fenv_t *envp)
{
unsigned long int temp;
/* Store the environment. */
_FPU_GETCW (temp);
envp->__fpscr = temp;
/* Clear the status flags. */
temp &= ~FE_ALL_EXCEPT;
/* Now set all exceptions to non-stop. */
temp &= ~(FE_ALL_EXCEPT << 5);
_FPU_SETCW (temp);
/* Success. */
return 0;
}
libm_hidden_def (feholdexcept)
|
