drop_zero_coefficients_action Class Reference

Removal of explicit zeros. More...

#include <CoinPresolveZeros.hpp>

Inheritance diagram for drop_zero_coefficients_action:

Collaboration diagram for drop_zero_coefficients_action:

Public Member Functions
const char *	name () const
	A name for debug printing. More...
void	postsolve (CoinPostsolveMatrix *prob) const
	Apply the postsolve transformation for this particular presolve action. More...
virtual	~drop_zero_coefficients_action ()
Public Member Functions inherited from CoinPresolveAction
	CoinPresolveAction (const CoinPresolveAction *next)
	Construct a postsolve object and add it to the transformation list. More...
void	setNext (const CoinPresolveAction *nextAction)
	modify next (when building rather than passing) More...
virtual	~CoinPresolveAction ()
	Virtual destructor. More...

Static Public Member Functions
static const CoinPresolveAction *	presolve (CoinPresolveMatrix *prob, int *checkcols, int ncheckcols, const CoinPresolveAction *next)
Static Public Member Functions inherited from CoinPresolveAction
static void	throwCoinError (const char *error, const char *ps_routine)
	Stub routine to throw exceptions. More...

Private Member Functions
	drop_zero_coefficients_action (int nzeros, const dropped_zero *zeros, const CoinPresolveAction *next)

Private Attributes
const int	nzeros_
const dropped_zero *const	zeros_

Additional Inherited Members
Public Attributes inherited from CoinPresolveAction
const CoinPresolveAction *	next
	The next presolve transformation. More...

Detailed Description

Removal of explicit zeros.

The presolve action for this class removes explicit zeros from the constraint matrix. The postsolve action puts them back.

Definition at line 32 of file CoinPresolveZeros.hpp.

Constructor & Destructor Documentation

drop_zero_coefficients_action::drop_zero_coefficients_action ( int  nzeros, const dropped_zero *  zeros, const CoinPresolveAction *  next  )

inlineprivate

Definition at line 37 of file CoinPresolveZeros.hpp.

virtual drop_zero_coefficients_action::~drop_zero_coefficients_action ( )

inlinevirtual

Definition at line 56 of file CoinPresolveZeros.hpp.

Member Function Documentation

const char* drop_zero_coefficients_action::name ( ) const

inlinevirtual

A name for debug printing.

It is expected that the name is not stored in the transform itself.

Implements CoinPresolveAction.

Definition at line 47 of file CoinPresolveZeros.hpp.

static const CoinPresolveAction* drop_zero_coefficients_action::presolve ( CoinPresolveMatrix *  prob, int *  checkcols, int  ncheckcols, const CoinPresolveAction *  next  )

static

void drop_zero_coefficients_action::postsolve ( CoinPostsolveMatrix *  prob ) const

virtual

Apply the postsolve transformation for this particular presolve action.

Implements CoinPresolveAction.

Member Data Documentation

const int drop_zero_coefficients_action::nzeros_

private

Definition at line 34 of file CoinPresolveZeros.hpp.

const dropped_zero* const drop_zero_coefficients_action::zeros_

private

Definition at line 35 of file CoinPresolveZeros.hpp.

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

• /tmp/Osi-0.108.6/CoinUtils/src/CoinPresolveZeros.hpp