CbcHeuristicLocal Class Reference

LocalSearch class. More...

#include <CbcHeuristicLocal.hpp>

Inheritance diagram for CbcHeuristicLocal:

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Collaboration diagram for CbcHeuristicLocal:

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List of all members.

Public Member Functions
	CbcHeuristicLocal ()
	CbcHeuristicLocal (CbcModel &model)
	CbcHeuristicLocal (const CbcHeuristicLocal &)
	~CbcHeuristicLocal ()
virtual CbcHeuristic *	clone () const
	Clone.
CbcHeuristicLocal &	operator= (const CbcHeuristicLocal &rhs)
	Assignment operator.
virtual void	generateCpp (FILE *fp)
	Create C++ lines to get to current state.
virtual void	resetModel (CbcModel *model)
	Resets stuff if model changes.
virtual void	setModel (CbcModel *model)
	update model (This is needed if cliques update matrix etc)
virtual int	solution (double &objectiveValue, double *newSolution)
	returns 0 if no solution, 1 if valid solution.
int	solutionFix (double &objectiveValue, double newSolution, const int keep)
	This version fixes stuff and does IP.
void	setSearchType (int value)
	Sets type of search.
char *	used () const
	Used array so we can set.
Protected Attributes
CoinPackedMatrix	matrix_
int	numberSolutions_
int	swap_
char *	used_
	Whether a variable has been in a solution.

Detailed Description

LocalSearch class.

Definition at line 10 of file CbcHeuristicLocal.hpp.

Constructor & Destructor Documentation

CbcHeuristicLocal::CbcHeuristicLocal ( )

CbcHeuristicLocal::CbcHeuristicLocal ( CbcModel & model )

CbcHeuristicLocal::CbcHeuristicLocal ( const CbcHeuristicLocal & )

CbcHeuristicLocal::~CbcHeuristicLocal ( )

Member Function Documentation

virtual CbcHeuristic* CbcHeuristicLocal::clone ( ) const [virtual]

Clone.

Implements CbcHeuristic.

CbcHeuristicLocal& CbcHeuristicLocal::operator= ( const CbcHeuristicLocal & rhs )

Assignment operator.

Reimplemented from CbcHeuristic.

virtual void CbcHeuristicLocal::generateCpp ( FILE * fp ) [virtual]

Create C++ lines to get to current state.

Reimplemented from CbcHeuristic.

virtual void CbcHeuristicLocal::resetModel ( CbcModel * model ) [virtual]

Resets stuff if model changes.

Implements CbcHeuristic.

virtual void CbcHeuristicLocal::setModel ( CbcModel * model ) [virtual]

update model (This is needed if cliques update matrix etc)

Reimplemented from CbcHeuristic.

virtual int CbcHeuristicLocal::solution	(	double &	objectiveValue,
		double *	newSolution
	)			`[virtual]`

returns 0 if no solution, 1 if valid solution.

Sets solution values if good, sets objective value (only if good) This is called after cuts have been added - so can not add cuts First tries setting a variable to better value. If feasible then tries setting others. If not feasible then tries swaps

This first version does not do LP's and does swaps of two integer variables. Later versions could do Lps.

Implements CbcHeuristic.