/* Clear given exceptions in current floating-point environment.   Copyright (C) 2001 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, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#include <fenv.h>intfeclearexcept (int excepts){  fenv_t temp;  unsigned int mxcsr;  /* Mask out unsupported bits/exceptions.  */  excepts &= FE_ALL_EXCEPT;  /* Bah, we have to clear selected exceptions.  Since there is no     `fldsw' instruction we have to do it the hard way.  */  __asm__ ("fnstenv %0" : "=m" (*&temp));  /* Clear the relevant bits.  */  temp.__status_word &= excepts ^ FE_ALL_EXCEPT;  /* Put the new data in effect.  */  __asm__ ("fldenv %0" : : "m" (*&temp));  /* And the same procedure for SSE.  */  __asm__ ("stmxcsr %0" : "=m" (*&mxcsr));  /* Clear the relevant bits.  */  mxcsr &= ~excepts;  /* And put them into effect.  */  __asm__ ("ldmxcsr %0" : : "m" (*&mxcsr));  /* Success.  */  return 0;}