bem_meta_functional.hh
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	/**
	*
	* @author Lucas Frérot <lucas.frerot@epfl.ch>
	*
	* @section LICENSE
	*
	* Copyright (©) 2016 EPFL (Ecole Polytechnique Fédérale de
	* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
	* Solides)
	*
	* Tamaas 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 3 of the License, or (at your option) any
	* later version.
	*
	* Tamaas 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 Tamaas. If not, see <http://www.gnu.org/licenses/>.
	*
	*/

	/* -------------------------------------------------------------------------- */

	#ifndef __BEM_META_FUNCTIONAL_HH__
	#define __BEM_META_FUNCTIONAL_HH__

	#include "bem_functional.hh"
	#include "tamaas.hh"
	#include <list>

	namespace tamaas {

	/// Meta functional that contains list of functionals
	class MetaFunctional : public Functional {
	public:
	/// Constructor
	explicit MetaFunctional(BemFFTBase& bem);

	/// Destructor
	virtual ~MetaFunctional();

	public:
	Real computeF();
	void computeGradFU();
	void computeGradFP();

	void addFunctionalTerm(Functional* term);

	protected:
	std::list<Functional*> functionals;
	};

	} // namespace tamaas

	#endif // __BEM_META_FUNCTIONAL_HH__