Domain consistent distinct propagator. More...
#include <distinct.hh>
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) |
Copy propagator during cloning. | |
Public Member Functions inherited from Gecode::NaryPropagator< View, PC_INT_DOM > | |
virtual void | reschedule (Space &home) |
Schedule function. | |
virtual size_t | dispose (Space &home) |
Delete propagator and return its size. | |
ModEventDelta | modeventdelta (void) const |
Return the modification event delta. | |
virtual ExecStatus | advise (Space &home, Advisor &a, const Delta &d) |
Advise function. | |
virtual void | advise (Space &home, Advisor &a) |
Run advisor a to be run on failure in failed space. | |
double | afc (void) const |
Return the accumlated failure count. | |
unsigned int | id (void) const |
Return propagator id. | |
PropagatorGroup | group (void) const |
Return group propagator belongs to. | |
void | group (PropagatorGroup g) |
Add propagator to group g. | |
bool | disabled (void) const |
Whether propagator is currently disabled. | |
virtual | ~Actor (void) |
To avoid warnings. |
Static Public Member Functions | |
static ExecStatus | post (Home home, ViewArray< View > &x) |
Post propagator for views x. | |
static void * | operator new (size_t s, Space &home) |
Allocate memory from space. | |
static void | operator delete (void *p, Space &home) |
No-op for exceptions. | |
static void * | operator new (size_t s) |
Not used. | |
static void | operator delete (void *p) |
Not used. |
Protected Member Functions | |
Dom (Space &home, Dom< View > &p) | |
Constructor for cloning p. | |
Dom (Home home, ViewArray< View > &x) | |
Constructor for posting. | |
Protected Member Functions inherited from Gecode::NaryPropagator< View, PC_INT_DOM > | |
NaryPropagator (Space &home, NaryPropagator &p) | |
Constructor for cloning p. | |
Protected Member Functions inherited from Gecode::Propagator | |
Propagator (Home home) | |
Constructor for posting. | |
Propagator (Space &home, Propagator &p) | |
Constructor for cloning p. | |
Propagator * | fwd (void) const |
Return forwarding pointer during copying. | |
Kernel::GPI::Info & | gpi (void) |
Provide access to global propagator information. |
Protected Attributes | |
DomCtrl< View > | dc |
Propagation controller. | |
Protected Attributes inherited from Gecode::NaryPropagator< View, PC_INT_DOM > | |
ViewArray< View > | x |
Array of views. |
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
Definition at line 283 of file distinct.hh.
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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 >.
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Propagation controller.
Definition at line 287 of file distinct.hh.