FloatingPointExceptionGuard.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
#include "MooseApp.h"
#include "libmesh/libmesh.h"
 
class FloatingPointExceptionGuard
{
public:
  FloatingPointExceptionGuard(const MooseApp & moose_app)
    : _trapping_enabled(moose_app.getFPTrapFlag())
  {
    if (_trapping_enabled)
      libMesh::enableFPE(true);
  }
 
  ~FloatingPointExceptionGuard()
  {
    if (_trapping_enabled)
      libMesh::enableFPE(false);
  }
 
private:
  const bool _trapping_enabled;
};