forcing_constraint_action Class Reference

Detect and process forcing constraints and useless constraints. More...

#include <CoinPresolveForcing.hpp>

Inheritance diagram for forcing_constraint_action:

[legend]Collaboration diagram for forcing_constraint_action:

[legend]List of all members.

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.
	~forcing_constraint_action ()
Static Public Member Functions
static const CoinPresolveAction *	presolve (CoinPresolveMatrix *prob, const CoinPresolveAction *next)
Private Member Functions
	forcing_constraint_action ()
	forcing_constraint_action (const forcing_constraint_action &rhs)
forcing_constraint_action &	operator= (const forcing_constraint_action &rhs)
	forcing_constraint_action (int nactions, const action *actions, const CoinPresolveAction *next)
Private Attributes
const int	nactions_
const action *const	actions_
Classes
struct	action

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Detailed Description

Detect and process forcing constraints and useless constraints.

A constraint is useless if the bounds on the variables prevent the constraint from ever being violated.

A constraint is a forcing constraint if the bounds on the constraint force the value of an involved variable to one of its bounds. A constraint can force more than one variable.

Definition at line 25 of file CoinPresolveForcing.hpp.

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Constructor & Destructor Documentation

forcing_constraint_action::forcing_constraint_action

(

)

[private]

forcing_constraint_action::forcing_constraint_action

(

const forcing_constraint_action &

rhs

)

[private]

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

Definition at line 42 of file CoinPresolveForcing.hpp.

forcing_constraint_action::~forcing_constraint_action

(

)

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Member Function Documentation

forcing_constraint_action& forcing_constraint_action::operator=

(

const forcing_constraint_action &

rhs

)

[private]

const char* forcing_constraint_action::name

(

)

const [virtual]

A name for debug printing.

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

Implements CoinPresolveAction.

static const CoinPresolveAction* forcing_constraint_action::presolve	(	CoinPresolveMatrix *	prob,
		const CoinPresolveAction *	next
	)			[static]

void forcing_constraint_action::postsolve

(

CoinPostsolveMatrix *

prob

)

const [virtual]

Apply the postsolve transformation for this particular presolve action.

Implements CoinPresolveAction.

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Member Data Documentation

const int forcing_constraint_action::nactions_ [private]

Definition at line 38 of file CoinPresolveForcing.hpp.

const action* const forcing_constraint_action::actions_ [private]

Definition at line 40 of file CoinPresolveForcing.hpp.

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

• /home/coin/SVN-release/CoinAll-1.1.0/CoinUtils/src/CoinPresolveForcing.hpp

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