8 #ifndef CbcSimpleInteger_H 9 #define CbcSimpleInteger_H 47 double lowerValue,
double upperValue);
72 double *lower,
double *upper,
73 int branchState)
const;
104 memcpy(
down_, bounds, 2 *
sizeof(
double));
109 memcpy(
up_, bounds, 2 *
sizeof(
double));
111 #ifdef FUNNY_BRANCHING 114 inline const int *variables()
const 119 inline const double *newBounds()
const 124 inline int numberExtraChangedBounds()
const 126 return numberExtraChangedBounds_;
129 int applyExtraBounds(
int iColumn,
double lower,
double upper,
int way);
133 inline bool active()
const 135 return (
down_[1] != -COIN_DBL_MAX);
160 #ifdef FUNNY_BRANCHING 167 int numberExtraChangedBounds_;
253 virtual void resetSequenceEtc(
int numberColumns,
const int *originalColumns);
Simple branching object for an integer variable.
void setDownBounds(const double bounds[2])
Set lower and upper bounds for down branch.
virtual ~CbcSimpleInteger()
virtual void feasibleRegion()=0
For the variable(s) referenced by the object, look at the current solution and set bounds to match th...
void setBreakEven(double value)
Set breakeven e.g 0.7 -> >= 0.7 go up first.
void setOriginalLowerBound(double value)
double down_[2]
Lower [0] and upper [1] bounds for the down arm (way_ = -1)
CbcIntegerBranchingObject()
Default constructor.
CbcIntegerBranchingObject & operator=(const CbcIntegerBranchingObject &rhs)
Assignment operator.
virtual CbcBranchObjType type() const
Return the type (an integer identifier) of this.
virtual ~CbcIntegerBranchingObject()
Destructor.
virtual void resetBounds(const OsiSolverInterface *solver)
Reset variable bounds to their original values.
virtual CbcRangeCompare compareBranchingObject(const CbcBranchingObject *brObj, const bool replaceIfOverlap=false)
Compare the this with brObj.
virtual CbcBranchingObject * createCbcBranch(OsiSolverInterface *solver, const OsiBranchingInformation *info, int way)
Create a branching object and indicate which way to branch first.
Define a single integer class.
void fillPart(int variable, int way, double value)
Does part of constructor.
virtual CbcBranchingObject * clone() const
Clone.
virtual double branch()
Sets the bounds for the variable according to the current arm of the branch and advances the object s...
virtual CbcObject * clone() const
Clone.
CbcModel * model() const
Return model.
OsiSimpleInteger * osiObject() const
Construct an OsiSimpleInteger object.
void setUpBounds(const double bounds[2])
Set lower and upper bounds for up branch.
double originalUpper_
Original upper bound.
double originalUpperBound() const
const double * downBounds() const
Lower and upper bounds for down branch.
int way() const
Get the state of the branching object.
virtual void fix(OsiSolverInterface *solver, double *lower, double *upper, int branchState) const
Update bounds in solver as in 'branch' and update given bounds.
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...
double originalLower_
data
int preferredWay_
If -1 down always chosen first, +1 up always, 0 normal.
int variable() const
Index identifying the associated CbcObject within its class.
virtual void feasibleRegion()
Set bounds to fix the variable at the current (integer) value.
CbcModel * model() const
Return model.
virtual double branch()=0
Execute the actions required to branch, as specified by the current state of the branching object...
void fillCreateBranch(CbcIntegerBranchingObject *branching, const OsiBranchingInformation *info, int way)
Fills in a created branching object.
virtual bool tighten(OsiSolverInterface *)
Change (tighten) bounds in object to reflect bounds in solver.
virtual void print() const
Print something about branch - only if log level high.
virtual void print()
Print something about branch - only if log level high.
CbcSimpleInteger & operator=(const CbcSimpleInteger &rhs)
double originalLowerBound() const
Original bounds.
int columnNumber_
Column number in model.
double breakEven() const
Breakeven e.g 0.7 -> >= 0.7 go up first.
double breakEven_
Breakeven i.e. >= this preferred is up.
double up_[2]
Lower [0] and upper [1] bounds for the up arm (way_ = 1)
void setColumnNumber(int value)
Set column number.
void setOriginalUpperBound(double value)
virtual OsiSolverBranch * solverBranch() const
Create an OsiSolverBranch object.
virtual int columnNumber() const
Column number if single column object -1 otherwise, so returns >= 0 Used by heuristics.
const double * upBounds() const
Lower and upper bounds for up branch.
double infeasibility() const
Simple Branch and bound class.
virtual void resetSequenceEtc(int numberColumns, const int *originalColumns)
Change column numbers after preprocessing.
int preferredWay() const
If -1 down always chosen first, +1 up always, 0 normal.