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/* Store current floating-point environment and clear exceptions.
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>
#include <arm-features.h>
int
feholdexcept (fenv_t *envp)
{
if (ARM_HAVE_VFP)
{
unsigned long int temp;
/* Store the environment. */
_FPU_GETCW(temp);
envp->__cw = temp;
/* Now set all exceptions to non-stop. */
temp &= ~(FE_ALL_EXCEPT << FE_EXCEPT_SHIFT);
/* And clear all exception flags. */
temp &= ~FE_ALL_EXCEPT;
_FPU_SETCW(temp);
return 0;
}
/* Unsupported, so fail. */
return 1;
}
libm_hidden_def (feholdexcept)
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