glibc/ports/sysdeps/alpha/fpu/feholdexcpt.c

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/* Store current floating-point environment and clear exceptions.
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Copyright (C) 1997, 2000, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@tamu.edu>, 1997
The GNU C Library is free software; you can redistribute it and/or
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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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
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#include <fenv_libc.h>
int
feholdexcept (fenv_t *envp)
{
/* Save the current state. */
fegetenv(envp);
/* Clear all exception status bits and exception enable bits. */
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__ieee_set_fp_control(*envp & SWCR_MAP_MASK);
return 0;
}
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libm_hidden_def (feholdexcept)