mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +00:00
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/* Clear given exceptions in current floating-point environment.
|
|
Copyright (C) 1997, 1999 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <fenv.h>
|
|
|
|
int
|
|
__feclearexcept (int excepts)
|
|
{
|
|
fexcept_t fpsr;
|
|
|
|
/* Mask out unsupported bits/exceptions. */
|
|
excepts &= FE_ALL_EXCEPT;
|
|
|
|
/* Fetch the fpu status register. */
|
|
__asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
|
|
|
|
/* Clear the relevant bits. */
|
|
fpsr &= ~excepts;
|
|
|
|
/* Put the new data in effect. */
|
|
__asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
|
|
|
|
/* Success. */
|
|
return 0;
|
|
}
|
|
strong_alias (__feclearexcept, __old_feclearexcept)
|
|
symbol_version (__old_feclearexcept, feclearexcept, GLIBC_2.1);
|
|
default_symbol_version (__feclearexcept, feclearexcept, GLIBC_2.1.3);
|