source: branches/sandbox/Cbc/src/CbcHeuristicDiveFractional.hpp @ 1273

Last change on this file since 1273 was 1271, checked in by forrest, 10 years ago

Creating new stable branch 2.4 from trunk (rev 1270)

File size: 1.4 KB
Line 
1/* $Id: CbcHeuristicDiveFractional.hpp 1173 2009-06-04 09:44:10Z forrest $ */
2// Copyright (C) 2008, International Business Machines
3// Corporation and others.  All Rights Reserved.
4#ifndef CbcHeuristicDiveFractional_H
5#define CbcHeuristicDiveFractional_H
6
7#include "CbcHeuristicDive.hpp"
8
9/** DiveFractional class
10 */
11
12class CbcHeuristicDiveFractional : public CbcHeuristicDive {
13public:
14
15  // Default Constructor
16  CbcHeuristicDiveFractional ();
17
18  // Constructor with model - assumed before cuts
19  CbcHeuristicDiveFractional (CbcModel & model);
20 
21  // Copy constructor
22  CbcHeuristicDiveFractional ( const CbcHeuristicDiveFractional &);
23   
24  // Destructor
25  ~CbcHeuristicDiveFractional ();
26
27  /// Clone
28  virtual CbcHeuristicDiveFractional * clone() const;
29 
30  /// Assignment operator
31  CbcHeuristicDiveFractional & operator=(const CbcHeuristicDiveFractional& rhs);
32
33  /// Create C++ lines to get to current state
34  virtual void generateCpp( FILE * fp) ;
35
36  /// Selects the next variable to branch on
37  /** Returns true if all the fractional variables can be trivially
38      rounded. Returns false, if there is at least one fractional variable
39      that is not trivially roundable. In this case, the bestColumn
40      returned will not be trivially roundable.
41  */
42  virtual bool selectVariableToBranch(OsiSolverInterface* solver,
43                                      const double* newSolution,
44                                      int& bestColumn,
45                                      int& bestRound);
46
47};
48
49#endif
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