Quadratic Constraint Class. More...

#include <ClpConstraintQuadratic.hpp>

Inheritance diagram for ClpConstraintQuadratic:

Collaboration diagram for ClpConstraintQuadratic:

Public Member Functions
Stuff
virtual int	gradient (const ClpSimplex model, const double solution, double *gradient, double &functionValue, double &offset, bool useScaling=false, bool refresh=true) const
	Fills gradient. More...

virtual void	resize (int newNumberColumns)
	Resize constraint. More...

virtual void	deleteSome (int numberToDelete, const int *which)
	Delete columns in constraint. More...

virtual void	reallyScale (const double *columnScale)
	Scale constraint. More...

virtual int	markNonlinear (char *which) const
	Given a zeroed array sets nonquadratic columns to 1. More...

virtual int	markNonzero (char *which) const
	Given a zeroed array sets possible nonzero coefficients to 1. More...

Constructors and destructors
	ClpConstraintQuadratic ()
	Default Constructor. More...

	ClpConstraintQuadratic (int row, int numberQuadraticColumns, int numberColumns, const CoinBigIndex start, const int column, const double *element)
	Constructor from quadratic. More...

	ClpConstraintQuadratic (const ClpConstraintQuadratic &rhs)
	Copy constructor . More...

ClpConstraintQuadratic &	operator= (const ClpConstraintQuadratic &rhs)
	Assignment operator. More...

virtual	~ClpConstraintQuadratic ()
	Destructor. More...

virtual ClpConstraint *	clone () const
	Clone. More...

Gets and sets
virtual int	numberCoefficients () const
	Number of coefficients. More...

int	numberColumns () const
	Number of columns in constraint. More...

CoinBigIndex *	start () const
	Column starts. More...

const int *	column () const
	Columns. More...

const double *	coefficient () const
	Coefficients. More...

Public Member Functions inherited from ClpConstraint
virtual double	functionValue (const ClpSimplex model, const double solution, bool useScaling=false, bool refresh=true) const
	Constraint function value. More...

	ClpConstraint ()
	Default Constructor. More...

	ClpConstraint (const ClpConstraint &)
	Copy constructor. More...

ClpConstraint &	operator= (const ClpConstraint &rhs)
	Assignment operator. More...

virtual	~ClpConstraint ()
	Destructor. More...

int	type ()
	Returns type, 0 linear, 1 nonlinear. More...

int	rowNumber () const
	Row number (-1 is objective) More...

double	functionValue () const
	Stored constraint function value. More...

double	offset () const
	Constraint offset. More...

virtual void	newXValues ()
	Say we have new primal solution - so may need to recompute. More...

Private Attributes
Private member data
Column starts
CoinBigIndex *	start_

int *	column_
	Column (if -1 then linear coefficient) More...

double *	coefficient_
	Coefficients. More...

int	numberColumns_
	Useful to have number of columns about. More...

int	numberCoefficients_
	Number of coefficients in gradient. More...

int	numberQuadraticColumns_
	Number of quadratic columns. More...

Additional Inherited Members
Protected Attributes inherited from ClpConstraint
double *	lastGradient_
	Gradient at last evaluation. More...

double	functionValue_
	Value of non-linear part of constraint. More...

double	offset_
	Value of offset for constraint. More...

int	type_
	Type of constraint - linear is 1. More...

int	rowNumber_
	Row number (-1 is objective) More...

Detailed Description

Quadratic Constraint Class.

Definition at line 17 of file ClpConstraintQuadratic.hpp.

Constructor & Destructor Documentation

◆ ClpConstraintQuadratic() [1/3]

ClpConstraintQuadratic::ClpConstraintQuadratic ( )

Default Constructor.

◆ ClpConstraintQuadratic() [2/3]

ClpConstraintQuadratic::ClpConstraintQuadratic	(	int	row,
		int	numberQuadraticColumns,
		int	numberColumns,
		const CoinBigIndex *	start,
		const int *	column,
		const double *	element
	)

Constructor from quadratic.

◆ ClpConstraintQuadratic() [3/3]

ClpConstraintQuadratic::ClpConstraintQuadratic ( const ClpConstraintQuadratic & rhs )

Copy constructor .

◆ ~ClpConstraintQuadratic()

virtual ClpConstraintQuadratic::~ClpConstraintQuadratic ( )

virtual

Destructor.

Member Function Documentation

◆ gradient()

virtual int ClpConstraintQuadratic::gradient	(	const ClpSimplex *	model,
		const double *	solution,
		double *	gradient,
		double &	functionValue,
		double &	offset,
		bool	useScaling = `false`,
		bool	refresh = `true`
	)		const

virtual

Fills gradient.

If Quadratic then solution may be NULL, also returns true value of function and offset so we can use x not deltaX in constraint If refresh is false then uses last solution Uses model for scaling Returns non-zero if gradient udefined at current solution

Implements ClpConstraint.

◆ resize()

virtual void ClpConstraintQuadratic::resize ( int newNumberColumns )

virtual

Resize constraint.

Implements ClpConstraint.

◆ deleteSome()

virtual void ClpConstraintQuadratic::deleteSome	(	int	numberToDelete,
		const int *	which
	)

virtual

Delete columns in constraint.

Implements ClpConstraint.

◆ reallyScale()

virtual void ClpConstraintQuadratic::reallyScale ( const double * columnScale )

virtual

Scale constraint.

Implements ClpConstraint.

◆ markNonlinear()

virtual int ClpConstraintQuadratic::markNonlinear ( char * which ) const

virtual

Given a zeroed array sets nonquadratic columns to 1.

Returns number of nonquadratic columns

Implements ClpConstraint.

◆ markNonzero()

virtual int ClpConstraintQuadratic::markNonzero ( char * which ) const

virtual

Given a zeroed array sets possible nonzero coefficients to 1.

Returns number of nonzeros

Implements ClpConstraint.

◆ operator=()

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

Assignment operator.

◆ clone()

virtual ClpConstraint* ClpConstraintQuadratic::clone ( ) const

virtual

Clone.

Implements ClpConstraint.

◆ numberCoefficients()

virtual int ClpConstraintQuadratic::numberCoefficients ( ) const

virtual

Number of coefficients.

Implements ClpConstraint.

◆ numberColumns()

int ClpConstraintQuadratic::numberColumns ( ) const

inline

Number of columns in constraint.

Definition at line 80 of file ClpConstraintQuadratic.hpp.

◆ start()

CoinBigIndex* ClpConstraintQuadratic::start ( ) const

inline

Column starts.

Definition at line 85 of file ClpConstraintQuadratic.hpp.

◆ column()

const int* ClpConstraintQuadratic::column ( ) const

inline

Columns.

Definition at line 90 of file ClpConstraintQuadratic.hpp.

◆ coefficient()

const double* ClpConstraintQuadratic::coefficient ( ) const

inline

Coefficients.

Definition at line 95 of file ClpConstraintQuadratic.hpp.

Member Data Documentation

◆ start_

CoinBigIndex* ClpConstraintQuadratic::start_

private

Definition at line 106 of file ClpConstraintQuadratic.hpp.

◆ column_

int* ClpConstraintQuadratic::column_

private

Column (if -1 then linear coefficient)

Definition at line 108 of file ClpConstraintQuadratic.hpp.

◆ coefficient_

double* ClpConstraintQuadratic::coefficient_

private

Coefficients.

Definition at line 110 of file ClpConstraintQuadratic.hpp.

◆ numberColumns_

int ClpConstraintQuadratic::numberColumns_

private

Useful to have number of columns about.

Definition at line 112 of file ClpConstraintQuadratic.hpp.

◆ numberCoefficients_

int ClpConstraintQuadratic::numberCoefficients_

private

Number of coefficients in gradient.

Definition at line 114 of file ClpConstraintQuadratic.hpp.

◆ numberQuadraticColumns_

int ClpConstraintQuadratic::numberQuadraticColumns_

private

Number of quadratic columns.

Definition at line 116 of file ClpConstraintQuadratic.hpp.

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

/home/ted/tmp/tmp/Clp/Clp/src/ClpConstraintQuadratic.hpp

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ClpConstraintQuadratic() [1/3]

◆ ClpConstraintQuadratic() [2/3]

◆ ClpConstraintQuadratic() [3/3]

◆ ~ClpConstraintQuadratic()

Member Function Documentation

◆ gradient()

◆ resize()

◆ deleteSome()

◆ reallyScale()

◆ markNonlinear()

◆ markNonzero()

◆ operator=()

◆ clone()

◆ numberCoefficients()

◆ numberColumns()

◆ start()

◆ column()

◆ coefficient()

Member Data Documentation

◆ start_

◆ column_

◆ coefficient_

◆ numberColumns_

◆ numberCoefficients_

◆ numberQuadraticColumns_