summary refs log tree commit diff
path: root/sysdeps/sparc/fpu/fesetround.c
blob: 000ab80eb74831d2a24566df0051891d85b3355f (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
36
37
38
39
/* Set current rounding direction.
   Copyright (C) 1997-2019 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>

int
__fesetround (int round)
{
  fenv_t tmp;

  if ((round & ~__FE_ROUND_MASK) != 0)
    /* ROUND is no valid rounding mode.  */
    return 1;

  __fenv_stfsr (tmp);
  tmp &= ~__FE_ROUND_MASK;
  tmp |= round;
  __fenv_ldfsr (tmp);

  return 0;
}
libm_hidden_def (__fesetround)
weak_alias (__fesetround, fesetround)
libm_hidden_weak (fesetround)