source: trunk/Cbc/src/CbcHeuristicDiveFractional.hpp @ 1899

Last change on this file since 1899 was 1899, checked in by stefan, 5 years ago

fixup svn properties

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  • Property svn:keywords set to Author Date Id Revision
File size: 1.5 KB
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1/* $Id: CbcHeuristicDiveFractional.hpp 1899 2013-04-09 18:12:08Z stefan $ */
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 CbcHeuristicDiveFractional_H
7#define CbcHeuristicDiveFractional_H
8
9#include "CbcHeuristicDive.hpp"
10
11/** DiveFractional class
12 */
13
14class CbcHeuristicDiveFractional : public CbcHeuristicDive {
15public:
16
17    // Default Constructor
18    CbcHeuristicDiveFractional ();
19
20    // Constructor with model - assumed before cuts
21    CbcHeuristicDiveFractional (CbcModel & model);
22
23    // Copy constructor
24    CbcHeuristicDiveFractional ( const CbcHeuristicDiveFractional &);
25
26    // Destructor
27    ~CbcHeuristicDiveFractional ();
28
29    /// Clone
30    virtual CbcHeuristicDiveFractional * clone() const;
31
32    /// Assignment operator
33    CbcHeuristicDiveFractional & operator=(const CbcHeuristicDiveFractional& rhs);
34
35    /// Create C++ lines to get to current state
36    virtual void generateCpp( FILE * fp) ;
37
38    /// Selects the next variable to branch on
39    /** Returns true if all the fractional variables can be trivially
40        rounded. Returns false, if there is at least one fractional variable
41        that is not trivially roundable. In this case, the bestColumn
42        returned will not be trivially roundable.
43    */
44    virtual bool selectVariableToBranch(OsiSolverInterface* solver,
45                                        const double* newSolution,
46                                        int& bestColumn,
47                                        int& bestRound);
48
49};
50
51#endif
52
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