CbcBranchToFixLots.hpp

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// $Id: CbcBranchToFixLots.hpp 1899 2013-04-09 18:12:08Z stefan $
// Copyright (C) 2004, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).
 
// Edwin 11/13/2009-- carved out of CbcBranchCut
 
#ifndef CbcBranchToFixLots_H
#define CbcBranchToFixLots_H
 
#include "CbcBranchCut.hpp"
#include "CbcBranchBase.hpp"
#include "OsiRowCut.hpp"
#include "CoinPackedMatrix.hpp"
 
class CbcBranchToFixLots : public CbcBranchCut {
 
public:
 
    // Default Constructor
    CbcBranchToFixLots ();
 
    CbcBranchToFixLots (CbcModel * model, double djTolerance,
                        double fractionFixed, int depth,
                        int numberClean = 0,
                        const char * mark = NULL,
                        bool alwaysCreate = false);
 
    // Copy constructor
    CbcBranchToFixLots ( const CbcBranchToFixLots &);
 
    virtual CbcObject * clone() const;
 
    // Assignment operator
    CbcBranchToFixLots & operator=( const CbcBranchToFixLots& rhs);
 
    // Destructor
    ~CbcBranchToFixLots ();
 
    int shallWe() const;
 
    virtual double infeasibility(const OsiBranchingInformation * info,
                                 int &preferredWay) const;
    virtual bool canDoHeuristics() const {
        return true;
    }
 
    virtual CbcBranchingObject * createCbcBranch(OsiSolverInterface * solver, const OsiBranchingInformation * info, int way) ;
    virtual void redoSequenceEtc(CbcModel * model, int numberColumns, const int * originalColumns);
 
 
protected:
 
    double djTolerance_;
    double fractionFixed_;
    char * mark_;
    CoinPackedMatrix matrixByRow_;
    int depth_;
    int numberClean_;
    bool alwaysCreate_;
};
#endif