/* Store current floating-point environment and clear exceptions.

   Copyright (C) 2000-2018 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, see

   <http://www.gnu.org/licenses/>.  */

#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)

weak_alias (__feholdexcept, feholdexcept)

libm_hidden_weak (feholdexcept)