explicit_system.h

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// 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_EXPLICIT_SYSTEM_H
#define LIBMESH_EXPLICIT_SYSTEM_H

// Local Includes
#include "libmesh/system.h"

namespace libMesh
{

class ExplicitSystem : public System
{
public:

  ExplicitSystem (EquationSystems & es,
                  const std::string & name,
                  const unsigned int number);

  ExplicitSystem (const ExplicitSystem &) = delete;
  ExplicitSystem & operator= (const ExplicitSystem &) = delete;
  ExplicitSystem (ExplicitSystem &&) = default;
  ExplicitSystem & operator= (ExplicitSystem &&) = delete;
  virtual ~ExplicitSystem ();

  typedef ExplicitSystem sys_type;

  typedef System Parent;

  sys_type & system () { return *this; }

  virtual void clear () override;

  virtual void assemble_qoi (const QoISet & qoi_indices = QoISet()) override;

  virtual void assemble_qoi_derivative (const QoISet & qoi_indices = QoISet(),
                                        bool include_liftfunc = true,
                                        bool apply_constraints = true) override;

  virtual void solve () override;

  virtual std::string system_type () const override { return "Explicit"; }

  NumericVector<Number> * rhs;

private:

  void add_system_rhs ();
};

} // namespace libMesh

#endif // LIBMESH_EXPLICIT_SYSTEM_H