fpe_disabler.h

Go to the documentation of this file.

// The libMesh Finite Element Library.
// Copyright (C) 2002-2025 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner

// This 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.

// This 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 this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA



#ifndef LIBMESH_FPE_DISABLER_H
#define LIBMESH_FPE_DISABLER_H


// Local includes
#include "libmesh/libmesh_common.h"

// C++ includes
#include <cfenv>

namespace libMesh
{

struct FPEDisabler
{
  FPEDisabler()
  {
    std::feholdexcept(&old_env);
  }

  ~FPEDisabler()
  {
    std::fesetenv(&old_env);
  }

  std::fenv_t old_env;
};

} // namespace libMesh

#endif // LIBMESH_PERFLOG_H