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/* Set floating-point environment exception handling.
Copyright (C) 1997,99,2000,01,04 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_libc.h"
int
__fesetexceptflag (const fexcept_t *flagp, int excepts)
{
unsigned long spefscr;
fexcept_t flag;
/* Get the current state. */
spefscr = fegetenv_register ();
/* Ignore exceptions not listed in 'excepts'. */
flag = *flagp & excepts;
/* Replace the exception status */
spefscr = (spefscr & ~FE_ALL_EXCEPT) | flag;
/* Store the new status word (along with the rest of the environment).
This may cause floating-point exceptions if the restored state
requests it. */
fesetenv_register (spefscr);
feraiseexcept (spefscr & FE_ALL_EXCEPT);
/* Success. */
return 0;
}
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