system_subset.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2019 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_SYSTEM_SUBSET_H
#define LIBMESH_SYSTEM_SUBSET_H
 
// Local Includes
#include "libmesh/reference_counted_object.h"
 
// C++ includes
#include <vector>
 
namespace libMesh
{
 
// Forward Declarations
class System;
 
class SystemSubset : public ReferenceCountedObject<SystemSubset>
{
public:
 
  explicit
  SystemSubset (const System & system);
 
  virtual ~SystemSubset ();
 
  virtual const std::vector<unsigned int> & dof_ids () const = 0;
 
  const System & get_system () const;
 
protected:
 
  const System & _system;
 
private:
  SystemSubset(const SystemSubset &);
 
  SystemSubset & operator= (const SystemSubset &);
}; // class SystemSubset
 
} // namespace libMesh
 
#endif // LIBMESH_SYSTEM_SUBSET_H