Cbc  2.10.5
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
CbcBranchUser.hpp
Go to the documentation of this file.
1 // $Id: CbcBranchUser.hpp 2469 2019-01-06 23:17:46Z unxusr $
2 // Copyright (C) 2002, 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 CbcBranchUser_H
7 #define CbcBranchUser_H
8 
9 #include "CbcBranchBase.hpp"
10 #include "CbcBranchActual.hpp"
11 
15 public:
16  // Default Constructor
18 
19  // Copy constructor
21 
22  virtual ~CbcBranchUserDecision();
23 
25  virtual CbcBranchDecision *clone() const;
26 
28  virtual void initialize(CbcModel *model);
29 
37  virtual int betterBranch(CbcBranchingObject *thisOne,
38  CbcBranchingObject *bestSoFar,
39  double changeUp, int numberInfeasibilitiesUp,
40  double changeDown, int numberInfeasibilitiesDown);
41 
49  virtual int
50  bestBranch(CbcBranchingObject **objects, int numberObjects, int numberUnsatisfied,
51  double *changeUp, int *numberInfeasibilitiesUp,
52  double *changeDown, int *numberInfeasibilitiesDown,
53  double objectiveValue);
54 
55 private:
58 };
59 
61 
63 
64 public:
65  // Default Constructor
67 
68  // Useful constructor - passed integer index and model index
69  CbcSimpleIntegerFixed(CbcModel *model, int iColumn, double breakEven = 0.5);
70 
71  // Constructor from simple
73 
74  // Copy constructor
76 
78  virtual CbcObject *clone() const;
79 
80  // Assignment operator
82 
83  // Destructor
85 
87  virtual double infeasibility(int &preferredWay) const;
88 
93  //virtual CbcBranchingObject * createBranch(int way) ;
100  const OsiBranchingInformation *info, int way);
101 
102 protected:
104 };
105 
106 #endif
virtual void initialize(CbcModel *model)
Initialize i.e. before start of choosing at a node.
virtual int betterBranch(CbcBranchingObject *thisOne, CbcBranchingObject *bestSoFar, double changeUp, int numberInfeasibilitiesUp, double changeDown, int numberInfeasibilitiesDown)
Returns nonzero if branching on first object is "better" than on second (if second NULL first wins)...
Define a single integer class where branching is forced until fixed.
CbcSimpleIntegerFixed & operator=(const CbcSimpleIntegerFixed &rhs)
int preferredWay() const
If -1 down always chosen first, +1 up always, 0 normal.
Definition: CbcObject.hpp:258
Abstract Base Class for describing an interface to a solver.
Define a single integer class.
virtual ~CbcBranchUserDecision()
double infeasibility() const
Return infeasibility.
CbcModel * model() const
Return model.
Definition: CbcObject.hpp:252
Abstract branching object base class Now just difference with OsiBranchingObject. ...
Branching decision user class.
virtual CbcBranchDecision * clone() const
Clone.
double breakEven() const
Breakeven e.g 0.7 -> >= 0.7 go up first.
virtual CbcObject * clone() const
Clone.
virtual CbcBranchingObject * createBranch(OsiSolverInterface *solver, const OsiBranchingInformation *info, int way)
Creates a branching object.
Simple Branch and bound class.
Definition: CbcModel.hpp:100
virtual int bestBranch(CbcBranchingObject **objects, int numberObjects, int numberUnsatisfied, double *changeUp, int *numberInfeasibilitiesUp, double *changeDown, int *numberInfeasibilitiesDown, double objectiveValue)
Compare N branching objects.
CbcBranchUserDecision & operator=(const CbcBranchUserDecision &rhs)
Illegal Assignment operator.