FockStateMap.h

/* Copyright 2017 Kristofer Björnson
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#ifndef COM_DAFER45_TBTK_FOCK_STATE_MAP
#define COM_DAFER45_TBTK_FOCK_STATE_MAP

#include "TBTK/FockState.h"

namespace TBTK{
namespace FockStateMap{

template<typename BIT_REGISTER>
class FockStateMap{
public:
    FockStateMap(unsigned int exponentialDimension);

    virtual ~FockStateMap();

    virtual unsigned int getBasisSize() const = 0;

    virtual unsigned int getBasisIndex(
        const FockState<BIT_REGISTER> &fockState
    ) const = 0;

    virtual FockState<BIT_REGISTER> getFockState(
        unsigned int index
    ) const = 0;

    unsigned int getExponentialDimension() const;
private:
    unsigned int exponentialDimension;
};

template<typename BIT_REGISTER>
FockStateMap<BIT_REGISTER>::FockStateMap(unsigned int exponentialDimension){
    this->exponentialDimension = exponentialDimension;
}

template<typename BIT_REGISTER>
FockStateMap<BIT_REGISTER>::~FockStateMap(){
}

template<typename BIT_REGISTER>
unsigned int FockStateMap<BIT_REGISTER>::getExponentialDimension() const{
    return exponentialDimension;
}

};  //End of namespace FockStateMap
};  //End of namespace TBTK

#endif