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/* Copyright (C) 1997-2014 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 <fpu_control.h>
int
feholdexcept (fenv_t *envp)
{
fpu_control_t fpcr;
fpu_control_t fpcr_new;
fpu_fpsr_t fpsr;
fpu_fpsr_t fpsr_new;
_FPU_GETCW (fpcr);
envp->__fpcr = fpcr;
_FPU_GETFPSR (fpsr);
envp->__fpsr = fpsr;
/* Now set all exceptions to non-stop. */
fpcr_new = fpcr & ~(FE_ALL_EXCEPT << FE_EXCEPT_SHIFT);
/* And clear all exception flags. */
fpsr_new = fpsr & ~FE_ALL_EXCEPT;
if (fpsr != fpsr_new)
_FPU_SETFPSR (fpsr_new);
if (fpcr != fpcr_new)
_FPU_SETCW (fpcr_new);
return 0;
}
libm_hidden_def (feholdexcept)
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