BaseReferenceDependentOperator.hpp

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// This file is part of GQCG-GQCP.
//
// Copyright (C) 2017-2020  the GQCG developers
//
// GQCG-GQCP 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.
//
// GQCG-GQCP 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 GQCG-GQCP.  If not, see <http://www.gnu.org/licenses/>.
 
#pragma once
 
 
#include "Mathematical/Representation/Matrix.hpp"
 
 
namespace GQCP {
 
 
class BaseReferenceDependentOperator {
private:
    // The point that is used as a reference to define the operator.
    Vector<double, 3> m_reference;
 
 
public:
    /*
     *  MARK: Constructors
     */
 
    BaseReferenceDependentOperator(const Vector<double, 3>& reference = Vector<double, 3>::Zero());
 
 
    /*
     *  MARK: Destructor
     */
 
    // Make the destructor pure virtual in order to make this class abstract.
    virtual ~BaseReferenceDependentOperator() = 0;
 
 
    /*
     *  MARK: Reference
     */
 
    const Vector<double, 3>& reference() const { return this->m_reference; }
};
 
 
}  // namespace GQCP