aboutsummaryrefslogtreecommitdiff
blob: 7a408bb70e045564f1839371fe0b898b3477ff6d (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
/* Set floating-point environment exception handling.
   Copyright (C) 1997-2013 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
   <http://www.gnu.org/licenses/>.  */

#include <fenv.h>
#include <math.h>
#include <fpu_control.h>

int
fesetexceptflag (const fexcept_t *flagp, int excepts)
{
  fpu_control_t temp;

  /* Get the current environment.  */
  _FPU_GETCW (temp);

  /* Set the desired exception mask.  */
  temp &= ~(excepts & FE_ALL_EXCEPT);
  temp |= (*flagp & excepts & FE_ALL_EXCEPT);

  /* Save state back to the FPU.  */
  _FPU_SETCW (temp);

  return 0;
}