/* $Id: CbcHeuristicDiveVectorLength.hpp 1173 2009-06-04 09:44:10Z forrest $ */
// Copyright (C) 2008, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

#ifndef CbcHeuristicDiveVectorLength_H
#define CbcHeuristicDiveVectorLength_H

#include "CbcHeuristicDive.hpp"

/** DiveVectorLength class
 */

class CbcHeuristicDiveVectorLength : public CbcHeuristicDive {
public:

    // Default Constructor
    CbcHeuristicDiveVectorLength ();

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

    // Copy constructor
    CbcHeuristicDiveVectorLength ( const CbcHeuristicDiveVectorLength &);

    // Destructor
    ~CbcHeuristicDiveVectorLength ();

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

    /// Assignment operator
    CbcHeuristicDiveVectorLength & operator=(const CbcHeuristicDiveVectorLength& 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

