CglKnapsackCover Class Reference

Knapsack Cover Cut Generator Class. More...

#include <CglKnapsackCover.hpp>

Inheritance diagram for CglKnapsackCover:

Collaboration diagram for CglKnapsackCover:

List of all members.

Classes
struct	cliqueType
	Clique type.
Public Member Functions
void	setTestedRowIndices (int num, const int *ind)
	A method to set which rows should be tested for knapsack covers.
Generate Cuts
virtual void	generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info=CglTreeInfo()) const
	Generate knapsack cover cuts for the model of the solver interface, si.
Constructors and destructors
	CglKnapsackCover ()
	Default constructor.
	CglKnapsackCover (const CglKnapsackCover &)
	Copy constructor.
virtual CglCutGenerator *	clone () const
	Clone.
CglKnapsackCover &	operator= (const CglKnapsackCover &rhs)
	Assignment operator.
virtual	~CglKnapsackCover ()
	Destructor.
virtual std::string	generateCpp (FILE *fp)
	Create C++ lines to get to current state.
virtual void	refreshSolver (OsiSolverInterface *solver)
	This can be used to refresh any information.
Sets and gets
void	setMaxInKnapsack (int value)
	Set limit on number in knapsack.
int	getMaxInKnapsack () const
	get limit on number in knapsack
void	switchOffExpensive ()
	Switch off expensive cuts.
void	switchOnExpensive ()
	Switch on expensive cuts.
Friends
void	CglKnapsackCoverUnitTest (const OsiSolverInterface *siP, const std::string mpdDir)
	A function that tests the methods in the CglKnapsackCover class.

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Detailed Description

Knapsack Cover Cut Generator Class.

Definition at line 15 of file CglKnapsackCover.hpp.

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Constructor & Destructor Documentation

CglKnapsackCover::CglKnapsackCover

(

)

Default constructor.

CglKnapsackCover::CglKnapsackCover

(

const CglKnapsackCover &

)

Copy constructor.

virtual CglKnapsackCover::~CglKnapsackCover

(

)

[virtual]

Destructor.

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Member Function Documentation

void CglKnapsackCover::setTestedRowIndices	(	int	num,
		const int *	ind
	)

A method to set which rows should be tested for knapsack covers.

virtual void CglKnapsackCover::generateCuts	(	const OsiSolverInterface &	si,
		OsiCuts &	cs,
		const CglTreeInfo	info = CglTreeInfo()
	)		const [virtual]

Generate knapsack cover cuts for the model of the solver interface, si.

Insert the generated cuts into OsiCut, cs.

Implements CglCutGenerator.

virtual CglCutGenerator* CglKnapsackCover::clone

(

)

const [virtual]

Clone.

Implements CglCutGenerator.

CglKnapsackCover& CglKnapsackCover::operator=

(

const CglKnapsackCover &

rhs

)

Assignment operator.

virtual std::string CglKnapsackCover::generateCpp

(

FILE *

fp

)

[virtual]

Create C++ lines to get to current state.

Reimplemented from CglCutGenerator.

virtual void CglKnapsackCover::refreshSolver

(

OsiSolverInterface *

solver

)

[virtual]

This can be used to refresh any information.

Reimplemented from CglCutGenerator.

void CglKnapsackCover::setMaxInKnapsack

(

int

value

)

[inline]

Set limit on number in knapsack.

Definition at line 62 of file CglKnapsackCover.hpp.

int CglKnapsackCover::getMaxInKnapsack

(

)

const [inline]

get limit on number in knapsack

Definition at line 65 of file CglKnapsackCover.hpp.

void CglKnapsackCover::switchOffExpensive

(

)

[inline]

Switch off expensive cuts.

Definition at line 68 of file CglKnapsackCover.hpp.

void CglKnapsackCover::switchOnExpensive

(

)

[inline]

Switch on expensive cuts.

Definition at line 71 of file CglKnapsackCover.hpp.

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Friends And Related Function Documentation

void CglKnapsackCoverUnitTest	(	const OsiSolverInterface *	siP,
		const std::string	mpdDir
	)		[friend]

A function that tests the methods in the CglKnapsackCover class.

The only reason for it not to be a member method is that this way it doesn't have to be compiled into the library. And that's a gain, because the library should be compiled with optimization on, but this method should be compiled with debugging.

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

• src/CglKnapsackCover/CglKnapsackCover.hpp