source: trunk/Cbc/src/CbcHeuristicDiveCoefficient.hpp @ 944

Last change on this file since 944 was 944, checked in by jpgoncal, 11 years ago

Added reduced cost fixing.

File size: 1.3 KB
Line 
1// Copyright (C) 2008, International Business Machines
2// Corporation and others.  All Rights Reserved.
3#ifndef CbcHeuristicDiveCoefficient_H
4#define CbcHeuristicDiveCoefficient_H
5
6#include "CbcHeuristicDive.hpp"
7
8/** DiveCoefficient class
9 */
10
11class CbcHeuristicDiveCoefficient : public CbcHeuristicDive {
12public:
13
14  // Default Constructor
15  CbcHeuristicDiveCoefficient ();
16
17  // Constructor with model - assumed before cuts
18  CbcHeuristicDiveCoefficient (CbcModel & model);
19 
20  // Copy constructor
21  CbcHeuristicDiveCoefficient ( const CbcHeuristicDiveCoefficient &);
22   
23  // Destructor
24  ~CbcHeuristicDiveCoefficient ();
25
26  /// Clone
27  virtual CbcHeuristicDiveCoefficient * clone() const;
28 
29  /// Assignment operator
30  CbcHeuristicDiveCoefficient & operator=(const CbcHeuristicDiveCoefficient& rhs);
31
32  /// Create C++ lines to get to current state
33  virtual void generateCpp( FILE * fp) ;
34
35  /// Selects the next variable to branch on
36  /** Returns true if all the fractional variables can be trivially
37      rounded. Returns false, if there is at least one fractional variable
38      that is not trivially roundable. In this case, the bestColumn
39      returned will not be trivially roundable.
40  */
41  virtual bool selectVariableToBranch(OsiSolverInterface* solver,
42                                      const double* newSolution,
43                                      int& bestColumn,
44                                      int& bestRound);
45
46};
47
48#endif
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