OsiIntegerBranchingObject Class Reference

Simple branching object for an integer variable. More...

#include <OsiBranchingObject.hpp>

Inheritance diagram for OsiIntegerBranchingObject:

[legend]

Collaboration diagram for OsiIntegerBranchingObject:

[legend]

List of all members.

Public Member Functions
	OsiIntegerBranchingObject ()
	Default constructor.
	OsiIntegerBranchingObject (OsiSolverInterface *solver, const OsiSimpleInteger *originalObject, int way, double value)
	Create a standard floor/ceiling branch object.
	OsiIntegerBranchingObject (OsiSolverInterface *solver, const OsiSimpleInteger *originalObject, int way, double value, double downUpperBound, double upLowerBound)
	Create a standard floor/ceiling branch object.
	OsiIntegerBranchingObject (const OsiIntegerBranchingObject &)
	Copy constructor.
OsiIntegerBranchingObject &	operator= (const OsiIntegerBranchingObject &rhs)
	Assignment operator.
virtual OsiBranchingObject *	clone () const
	Clone.
virtual	~OsiIntegerBranchingObject ()
	Destructor.
virtual double	branch (OsiSolverInterface *solver)
	Sets the bounds for the variable according to the current arm of the branch and advances the object state to the next arm.
virtual void	print (const OsiSolverInterface *solver=NULL)
	Print something about branch - only if log level high.
Protected Attributes
double	down_ [2]
	Lower [0] and upper [1] bounds for the down arm (way_ = -1).
double	up_ [2]
	Lower [0] and upper [1] bounds for the up arm (way_ = 1).

---

Detailed Description

Simple branching object for an integer variable.

This object can specify a two-way branch on an integer variable. For each arm of the branch, the upper and lower bounds on the variable can be independently specified. 0 -> down, 1-> up.

Definition at line 592 of file OsiBranchingObject.hpp.

---

Constructor & Destructor Documentation

OsiIntegerBranchingObject::OsiIntegerBranchingObject

(

)

Default constructor.

OsiIntegerBranchingObject::OsiIntegerBranchingObject	(	OsiSolverInterface *	solver,
		const OsiSimpleInteger *	originalObject,
		int	way,
		double	value
	)

Create a standard floor/ceiling branch object.

Specifies a simple two-way branch. Let value = x*. One arm of the branch will be lb <= x <= floor(x*), the other ceil(x*) <= x <= ub. Specify way = -1 to set the object state to perform the down arm first, way = 1 for the up arm.

OsiIntegerBranchingObject::OsiIntegerBranchingObject	(	OsiSolverInterface *	solver,
		const OsiSimpleInteger *	originalObject,
		int	way,
		double	value,
		double	downUpperBound,
		double	upLowerBound
	)

Create a standard floor/ceiling branch object.

Specifies a simple two-way branch in a more flexible way. One arm of the branch will be lb <= x <= downUpperBound, the other upLowerBound <= x <= ub. Specify way = -1 to set the object state to perform the down arm first, way = 1 for the up arm.

OsiIntegerBranchingObject::OsiIntegerBranchingObject

(

const OsiIntegerBranchingObject &

)

Copy constructor.

virtual OsiIntegerBranchingObject::~OsiIntegerBranchingObject

(

)

[virtual]

Destructor.

---

Member Function Documentation

OsiIntegerBranchingObject& OsiIntegerBranchingObject::operator=

(

const OsiIntegerBranchingObject &

rhs

)

Assignment operator.

Reimplemented from OsiTwoWayBranchingObject.

virtual OsiBranchingObject* OsiIntegerBranchingObject::clone

(

)

const [virtual]

Clone.

Implements OsiBranchingObject.

virtual double OsiIntegerBranchingObject::branch

(

OsiSolverInterface *

solver

)

[virtual]

Sets the bounds for the variable according to the current arm of the branch and advances the object state to the next arm.

state. Returns change in guessed objective on next branch

Implements OsiTwoWayBranchingObject.

virtual void OsiIntegerBranchingObject::print

(

const OsiSolverInterface *

solver = NULL

)

[virtual]

Print something about branch - only if log level high.

---

Member Data Documentation

double OsiIntegerBranchingObject::down_[2] [protected]

Lower [0] and upper [1] bounds for the down arm (way_ = -1).

Definition at line 646 of file OsiBranchingObject.hpp.

double OsiIntegerBranchingObject::up_[2] [protected]

Lower [0] and upper [1] bounds for the up arm (way_ = 1).

Definition at line 648 of file OsiBranchingObject.hpp.

---

The documentation for this class was generated from the following file:

• /home/coin/svn-release/OptimizationSuite-1.1.0/Osi/src/OsiBranchingObject.hpp