12#include "OsiRowCut.hpp"
13#include "CoinHelperFunctions.hpp"
14#include "CoinPackedMatrix.hpp"
82 int numberOnDownSide,
const int *down,
83 int numberOnUpSide,
const int *up);
Abstract branching object base class Now just difference with OsiBranchingObject.
virtual void previousBranch()
Reset every information so that the branching object appears to point to the previous child.
virtual double branch()=0
Execute the actions required to branch, as specified by the current state of the branching object,...
CbcModel * model() const
Return model.
int way() const
Get the state of the branching object.
virtual void print() const
Print something about branch - only if log level high.
General Branching Object class.
CbcFixingBranchingObject(CbcModel *model, int way, int numberOnDownSide, const int *down, int numberOnUpSide, const int *up)
virtual CbcBranchingObject * clone() const
Clone.
virtual double branch()
Does next branch and updates state.
CbcFixingBranchingObject & operator=(const CbcFixingBranchingObject &rhs)
int * upList_
upList - variables to fix to lb on up branch
virtual ~CbcFixingBranchingObject()
CbcFixingBranchingObject(const CbcFixingBranchingObject &)
CbcFixingBranchingObject()
virtual CbcRangeCompare compareBranchingObject(const CbcBranchingObject *brObj, const bool replaceIfOverlap=false)
Compare the this with brObj.
int numberDown_
data Number on down list
virtual int compareOriginalObject(const CbcBranchingObject *brObj) const
Compare the original object of this with the original object of brObj.
int numberUp_
Number on up list.
virtual CbcBranchObjType type() const
Return the type (an integer identifier) of this.
int * downList_
downList - variables to fix to lb on down branch
virtual void print()
Print something about branch - only if log level high.
Define a follow on class.
virtual int gutsOfFollowOn(int &otherRow, int &preferredWay) const
As some computation is needed in more than one place - returns row.
int * rhs_
Possible rhs (if 0 then not possible)
CoinPackedMatrix matrixByRow_
Matrix by row.
CbcFollowOn & operator=(const CbcFollowOn &rhs)
CbcFollowOn(CbcModel *model)
Useful constructor.
virtual double infeasibility(const OsiBranchingInformation *info, int &preferredWay) const
Infeasibility - large is 0.5.
virtual CbcObject * clone() const
Clone.
virtual void feasibleRegion()
This looks at solution and sets bounds to contain solution.
CoinPackedMatrix matrix_
data Matrix
CbcFollowOn(const CbcFollowOn &)
virtual CbcBranchingObject * createCbcBranch(OsiSolverInterface *solver, const OsiBranchingInformation *info, int way)
Creates a branching object.
Define an idiotic idea class.
OsiRowCut buildCut(const OsiBranchingInformation *info, int type, int &preferredWay) const
Build "cut".
CbcIdiotBranch(const CbcIdiotBranch &)
virtual double infeasibility(const OsiBranchingInformation *info, int &preferredWay) const
Infeasibility - large is 0.5.
CbcIdiotBranch & operator=(const CbcIdiotBranch &rhs)
virtual void initializeForBranching(CbcModel *)
Initialize for branching.
CoinThreadRandom randomNumberGenerator_
data Thread specific random number generator
virtual CbcObject * clone() const
Clone.
CoinThreadRandom savedRandomNumberGenerator_
Saved version of thread specific random number generator.
CbcIdiotBranch(CbcModel *model)
Useful constructor.
virtual CbcBranchingObject * createCbcBranch(OsiSolverInterface *solver, const OsiBranchingInformation *info, int way)
Creates a branching object.
virtual void feasibleRegion()
This looks at solution and sets bounds to contain solution.
Simple Branch and bound class.
virtual void feasibleRegion()=0
For the variable(s) referenced by the object, look at the current solution and set bounds to match th...
CbcModel * model() const
Return model.
int preferredWay() const
If -1 down always chosen first, +1 up always, 0 normal.