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