slack_singleton_action Class Reference

For variables with one entry. More...

#include <CoinPresolveSingleton.hpp>

Inheritance diagram for slack_singleton_action:

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Collaboration diagram for slack_singleton_action:

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List of all members.

Classes
struct	action
Public Member Functions
const char *	name () const
	A name for debug printing.
void	postsolve (CoinPostsolveMatrix *prob) const
	Apply the postsolve transformation for this particular presolve action.
	~slack_singleton_action ()
Static Public Member Functions
static const CoinPresolveAction *	presolve (CoinPresolveMatrix prob, const CoinPresolveAction next, double *rowObjective)
Private Member Functions
	slack_singleton_action (int nactions, const action actions, const CoinPresolveAction next)
Private Attributes
const int	nactions_
const action *const	actions_

Detailed Description

For variables with one entry.

If we have a variable with one entry and no cost then we can transform the row from E to G etc. If there is a row objective region then we may be able to do this even with a cost.

Definition at line 73 of file CoinPresolveSingleton.hpp.

Constructor & Destructor Documentation

slack_singleton_action::slack_singleton_action	(	int	nactions,
		const action *	actions,
		const CoinPresolveAction *	next
	)			`[inline, private]`

Definition at line 90 of file CoinPresolveSingleton.hpp.

slack_singleton_action::~slack_singleton_action ( ) [inline]

Definition at line 108 of file CoinPresolveSingleton.hpp.

Member Function Documentation

const char* slack_singleton_action::name ( ) const [inline, virtual]

A name for debug printing.

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

Implements CoinPresolveAction.

Definition at line 99 of file CoinPresolveSingleton.hpp.

static const CoinPresolveAction* slack_singleton_action::presolve	(	CoinPresolveMatrix *	prob,
		const CoinPresolveAction *	next,
		double *	rowObjective
	)			`[static]`