Gecode::Int::Distinct::Dom< View > Class Template Reference
[Integer propagators]

Domain consistent distinct propagator. More...

#include <distinct.hh>

List of all members.

Public Member Functions
virtual ExecStatus	propagate (Space &home, const ModEventDelta &med)
	Perform propagation.
virtual PropCost	cost (const Space &home, const ModEventDelta &med) const
	Cost function.
virtual Actor *	copy (Space &home, bool share)
	Copy propagator during cloning.
Static Public Member Functions
static ExecStatus	post (Home home, ViewArray< View > &x)
	Post propagator for views x.
Protected Member Functions
	Dom (Space &home, bool share, Dom< View > &p)
	Constructor for cloning p.
	Dom (Home home, ViewArray< View > &x)
	Constructor for posting.
Protected Attributes
DomCtrl< View >	dc
	Propagation controller.

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Detailed Description

template<class View>
class Gecode::Int::Distinct::Dom< View >

Domain consistent distinct propagator.

The propagator uses staging: first it uses naive value-based propagation and only then uses domain consistent propagation.

The algorithm is taken from: Jean-Charles Régin, A filtering algorithm for constraints of difference in CSPs, Proceedings of the Twelfth National Conference on Artificial Intelligence, pages 362--367. Seattle, WA, USA, 1994.

Requires

 #include <gecode/int/distinct.hh> 

Definition at line 251 of file distinct.hh.

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Constructor & Destructor Documentation

template<class View >

Gecode::Int::Distinct::Dom< View >::Dom	(	Space &	home,
		bool	share,
		Dom< View > &	p
	)			[inline, protected]

Constructor for cloning p.

Definition at line 64 of file dom.hpp.

template<class View >

Gecode::Int::Distinct::Dom< View >::Dom	(	Home	home,
		ViewArray< View > &	x
	)			[inline, protected]

Constructor for posting.

Definition at line 44 of file dom.hpp.

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Member Function Documentation

template<class View >

ExecStatus Gecode::Int::Distinct::Dom< View >::propagate	(	Space &	home,
		const ModEventDelta &	med
	)			[inline, virtual]

Perform propagation.

Implements Gecode::Propagator.

Definition at line 84 of file dom.hpp.

template<class View >

PropCost Gecode::Int::Distinct::Dom< View >::cost	(	const Space &	home,
		const ModEventDelta &	med
	)			const [inline, virtual]

Cost function.

If in stage for naive value propagation, the cost is low linear. Otherwise it is high quadratic.

Reimplemented from Gecode::NaryPropagator< View, PC_INT_DOM >.

Definition at line 69 of file dom.hpp.

template<class View >

Actor * Gecode::Int::Distinct::Dom< View >::copy	(	Space &	home,
		bool	share
	)			[inline, virtual]

Copy propagator during cloning.

Implements Gecode::Actor.

Definition at line 78 of file dom.hpp.

template<class View >

ExecStatus Gecode::Int::Distinct::Dom< View >::post	(	Home	home,
		ViewArray< View > &	x
	)			[inline, static]

Post propagator for views x.

Definition at line 49 of file dom.hpp.

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Member Data Documentation

template<class View>

DomCtrl<View> Gecode::Int::Distinct::Dom< View >::dc [protected]

Propagation controller.

Definition at line 255 of file distinct.hh.

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

• gecode/int/distinct.hh (Revision: 12423)
• gecode/int/distinct/dom.hpp (Revision: 12393)