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/* Install given floating-point environment and raise exceptions,
without clearing currently raised exceptions.
Copyright (C) 2020 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 <fpu_control.h>
int
__feupdateenv (const fenv_t *envp)
{
unsigned int fpcr;
unsigned int fpsr;
_FPU_GETS (fpsr);
if (envp == FE_DFL_ENV)
{
fpcr = _FPU_DEFAULT;
}
else
{
fpcr = envp->__fpcr;
/* currently raised exceptions need to be preserved. */
fpsr |= envp->__fpsr;
}
_FPU_SETCW (fpcr);
_FPU_SETS (fpsr);
/* Success. */
return 0;
}
libm_hidden_def (__feupdateenv)
weak_alias (__feupdateenv, feupdateenv)
libm_hidden_weak (feupdateenv)
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