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/* Set current rounding direction.
Copyright (C) 2020-2021 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 <fenv_private.h>
int
__fesetround (int round)
{
unsigned int fpcr;
_FPU_GETCW (fpcr);
if (((fpcr >> __FPU_RND_SHIFT) & __FPU_RND_MASK) != round)
{
fpcr &= ~(__FPU_RND_MASK << __FPU_RND_SHIFT);
fpcr |= (round & __FPU_RND_MASK) << __FPU_RND_SHIFT;
_FPU_SETCW (fpcr);
}
return 0;
}
libm_hidden_def (__fesetround)
weak_alias (__fesetround, fesetround)
libm_hidden_weak (fesetround)
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