solutionhash.h

/***************************************************************************
 *   Copyright (C) 2005 by Torben Nielsen   *
 *   torben@t-hoerup.dk   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef SOLUTIONHASH_H
#define SOLUTIONHASH_H

#include "solutioncontainer.h"
#include "solution.h"

#include <list>


class SolutionHash : public SolutionContainer
{
private:
    static const int max_size = 256;
    typedef std::list<Solution>::iterator ListIt;
    typedef std::list<Solution> SolList;
     
    SolList* solutions[max_size];
    
    void uniqueSolutionsWorker(int bucket, int rot, bool mirror);
    int total;
    bool unique;
    int m_hashroof;
    int m_size;

public:
    SolutionHash();

    ~SolutionHash();
    void uniqueSolutions();
    int numSolutions();
    int totalSolutions();
    
    Solution solution(int index);
    void addSolution(Solution sol);
};

#endif

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