slack_doubleton_action Class Reference

Convert an explicit bound constraint to a column bound. More...

#include <CoinPresolveSingleton.hpp>

Inheritance diagram for slack_doubleton_action:

Collaboration diagram for slack_doubleton_action:

Classes
struct	action

Public Member Functions
const char *	name () const
	Construct a postsolve object and add it to the transformation list.
void	postsolve (CoinPostsolveMatrix *prob) const
	Apply the postsolve transformation for this particular presolve action.
virtual	~slack_doubleton_action ()
Public Member Functions inherited from CoinPresolveAction
virtual	~CoinPresolveAction ()
	Virtual destructor.

Static Public Member Functions
static const CoinPresolveAction *	presolve (CoinPresolveMatrix *prob, const CoinPresolveAction *next, bool &notFinished)
	Convert explicit bound constraints to column bounds.
Static Public Member Functions inherited from CoinPresolveAction
static void	throwCoinError (const char *error, const char *ps_routine)
	Stub routine to throw exceptions.

Private Member Functions
	slack_doubleton_action (int nactions, const action *actions, const CoinPresolveAction *next)

Private Attributes
const int	nactions_
const action *const	actions_

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

Detailed Description

Convert an explicit bound constraint to a column bound.

This transform looks for explicit bound constraints for a variable and transfers the bound to the appropriate column bound array. The constraint is removed from the constraint system.

Definition at line 24 of file CoinPresolveSingleton.hpp.

Constructor & Destructor Documentation

slack_doubleton_action()

slack_doubleton_action::slack_doubleton_action ( int nactions, const action * actions, const CoinPresolveAction * next )

inlineprivate

Definition at line 41 of file CoinPresolveSingleton.hpp.

~slack_doubleton_action()

virtual slack_doubleton_action::~slack_doubleton_action ( )

inlinevirtual

Definition at line 65 of file CoinPresolveSingleton.hpp.

Member Function Documentation

name()

const char * slack_doubleton_action::name ( ) const

inlinevirtual

Construct a postsolve object and add it to the transformation list.

This is an `add to head' operation. This object will point to the one passed as the parameter. */ CoinPresolveAction(const CoinPresolveAction *next) : next(next) { } modify next (when building rather than passing) inline void setNext(const CoinPresolveAction *nextAction) { next = nextAction; }

/*! A name for debug printing.

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

Implements CoinPresolveAction.

Definition at line 51 of file CoinPresolveSingleton.hpp.

presolve()

const CoinPresolveAction * slack_doubleton_action::presolve ( CoinPresolveMatrix * prob, const CoinPresolveAction * next, bool & notFinished )

static

Convert explicit bound constraints to column bounds.

Not now There is a hard limit (#MAX_SLACK_DOUBLETONS) on the number of constraints processed in a given call. notFinished is set to true if candidates remain.

postsolve()

void slack_doubleton_action::postsolve ( CoinPostsolveMatrix * prob ) const

virtual

Apply the postsolve transformation for this particular presolve action.

Implements CoinPresolveAction.

Member Data Documentation

nactions_

const int slack_doubleton_action::nactions_

private

Definition at line 38 of file CoinPresolveSingleton.hpp.

actions_

const action* const slack_doubleton_action::actions_

private

Definition at line 39 of file CoinPresolveSingleton.hpp.

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

• /builddir/build/BUILD/coin-or-CoinUtils-2.11.13-build/CoinUtils-releases-2.11.13/CoinUtils/src/CoinPresolveSingleton.hpp