/* Store current floating-point environment and clear exceptions.   Copyright (C) 2000, 2005, 2007 Free Software Foundation, Inc.   This file is part of the GNU C Library.   Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).   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_libc.h>#include <fpu_control.h>int feholdexcept (fenv_t *envp){  fexcept_t fpc;  /* Store the environment.  */  fegetenv (envp);  /* Clear the current sticky bits as more than one exception     may be generated.  */  fpc = envp->fpc & ~(FPC_FLAGS_MASK | FPC_DXC_MASK);  /* Hold from generating fpu exceptions temporarily.  */  _FPU_SETCW ((fpc & ~(FE_ALL_EXCEPT << FPC_EXCEPTION_MASK_SHIFT)));  return 0;}libm_hidden_def (feholdexcept)