source: trunk/Cbc/src/CbcHeuristicDiveVectorLength.hpp

Last change on this file was 2465, checked in by unxusr, 8 months ago

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1/* $Id: CbcHeuristicDiveVectorLength.hpp 2465 2019-01-03 19:26:52Z tkr $ */
2// Copyright (C) 2008, International Business Machines
3// Corporation and others.  All Rights Reserved.
4// This code is licensed under the terms of the Eclipse Public License (EPL).
5
6#ifndef CbcHeuristicDiveVectorLength_H
7#define CbcHeuristicDiveVectorLength_H
8
9#include "CbcHeuristicDive.hpp"
10
11/** DiveVectorLength class
12 */
13
14class CbcHeuristicDiveVectorLength : public CbcHeuristicDive {
15public:
16  // Default Constructor
17  CbcHeuristicDiveVectorLength();
18
19  // Constructor with model - assumed before cuts
20  CbcHeuristicDiveVectorLength(CbcModel &model);
21
22  // Copy constructor
23  CbcHeuristicDiveVectorLength(const CbcHeuristicDiveVectorLength &);
24
25  // Destructor
26  ~CbcHeuristicDiveVectorLength();
27
28  /// Clone
29  virtual CbcHeuristicDiveVectorLength *clone() const;
30
31  /// Assignment operator
32  CbcHeuristicDiveVectorLength &operator=(const CbcHeuristicDiveVectorLength &rhs);
33
34  /// Create C++ lines to get to current state
35  virtual void generateCpp(FILE *fp);
36
37  /// Selects the next variable to branch on
38  /** Returns true if all the fractional variables can be trivially
39        rounded. Returns false, if there is at least one fractional variable
40        that is not trivially roundable. In this case, the bestColumn
41        returned will not be trivially roundable.
42    */
43  virtual bool selectVariableToBranch(OsiSolverInterface *solver,
44    const double *newSolution,
45    int &bestColumn,
46    int &bestRound);
47};
48
49#endif
50
51/* vi: softtabstop=2 shiftwidth=2 expandtab tabstop=2
52*/
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