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/* $Id: CbcHeuristicDiveLineSearch.hpp 1173 2009-06-04 09:44:10Z forrest $ */
// Copyright (C) 2008, International Business Machines
// Corporation and others.  All Rights Reserved.
#ifndef CbcHeuristicDiveLineSearch_H
#define CbcHeuristicDiveLineSearch_H

#include "CbcHeuristicDive.hpp"

/** DiveLineSearch class
 */

class CbcHeuristicDiveLineSearch : public CbcHeuristicDive {
public:

    // Default Constructor
    CbcHeuristicDiveLineSearch ();

    // Constructor with model - assumed before cuts
    CbcHeuristicDiveLineSearch (CbcModel & model);

    // Copy constructor
    CbcHeuristicDiveLineSearch ( const CbcHeuristicDiveLineSearch &);

    // Destructor
    ~CbcHeuristicDiveLineSearch ();

    /// Clone
    virtual CbcHeuristicDiveLineSearch * clone() const;

    /// Assignment operator
    CbcHeuristicDiveLineSearch & operator=(const CbcHeuristicDiveLineSearch& rhs);

    /// Create C++ lines to get to current state
    virtual void generateCpp( FILE * fp) ;

    /// Selects the next variable to branch on
    /** Returns true if all the fractional variables can be trivially
        rounded. Returns false, if there is at least one fractional variable
        that is not trivially roundable. In this case, the bestColumn
        returned will not be trivially roundable.
    */
    virtual bool selectVariableToBranch(OsiSolverInterface* solver,
                                        const double* newSolution,
                                        int& bestColumn,
                                        int& bestRound);

};

#endif