mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-02 17:50:20 +00:00
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* Set current rounding direction.
|
|
Copyright (C) 1997-2016 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)
|