HilbertSpace.hpp

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#ifndef HILBERTSPACE_HILBERTSPACE_HPP
#define HILBERTSPACE_HILBERTSPACE_HPP

#include "../Ensemble/Ensemble.hpp"
#include "../Combinadics/Combinadics.hpp"
namespace solid
{

// main purpose: state enumeration within the sectors
// class contains
// - Base State
// - Ensemble

class HilbertSpace
{
public:
    BaseState baseState;
    Ensemble ensemble;

    void InitialBaseState();

    bool NextBaseState();

    void Reset();

    statenumber stateTotalIndex = 0;

    bool operator++(int);

    statenumber GetStateIndexInCurrentSector(BaseState state);

    statenumber GetStateIndexInNextParitySector(BaseState state);


private:
    statenumber stateIndex = 0;             
    int sectorIndex = 0;                    
    statenumber sectorOffset = 0;           
    statenumber nextParitySectorOffset = 0; 

    bool NextSector();

    bool LastSector();

    void GetNextParitySectorOffset();
};

} // namespace solid

#endif