Single value precedence propagator. More...
#include <precede.hh>
Classes | |
class | Index |
Advisors for views (by position in array) More... |
Public Member Functions | |
virtual Propagator * | copy (Space &home) |
Copy propagator during cloning. | |
virtual PropCost | cost (const Space &, const ModEventDelta &) const |
Cost function. | |
virtual void | reschedule (Space &home) |
Schedule function. | |
virtual size_t | dispose (Space &home) |
Delete propagator and return its size. | |
virtual ExecStatus | advise (Space &home, Advisor &a, const Delta &d) |
Give advice to propagator. | |
virtual ExecStatus | propagate (Space &home, const ModEventDelta &med) |
Perform propagation. | |
ModEventDelta | modeventdelta (void) const |
Return the modification event delta. | |
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, int s, int t) |
Post propagator that s precedes t in 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 | |
ExecStatus | updateAlpha (Space &home) |
Update the alpha pointer. | |
ExecStatus | updateBeta (Space &home) |
Update the beta pointer. | |
Single (Home home, ViewArray< View > &x, int s, int t, int beta, int gamma) | |
Constructor for posting. | |
Single (Space &home, Single< View > &p) | |
Constructor for cloning p. | |
Protected Member Functions inherited from Gecode::NaryPropagator< View, PC_INT_NONE > | |
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 | |
Council< Index > | c |
The advisor council. | |
int | s |
The value s must precede t. | |
int | t |
int | alpha |
Pointers updated during propagation. | |
int | beta |
int | gamma |
Protected Attributes inherited from Gecode::NaryPropagator< View, PC_INT_NONE > | |
ViewArray< View > | x |
Array of views. |
Single value precedence propagator.
The propagator is based on: Yat Chiu Law and Jimmy H.M. Lee, Global Constraints for Integer and Set Value Precedence, CP 2004, 362–376.
Requires
Definition at line 61 of file precede.hh.
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inlineprotected |
Constructor for posting.
Definition at line 84 of file single.hpp.
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protected |
Constructor for cloning p.
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inlineprotected |
Update the alpha pointer.
Definition at line 61 of file single.hpp.
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inlineprotected |
Update the beta pointer.
Definition at line 72 of file single.hpp.
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virtual |
Copy propagator during cloning.
Implements Gecode::Actor.
Definition at line 136 of file single.hpp.
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virtual |
Cost function.
Reimplemented from Gecode::NaryPropagator< View, PC_INT_NONE >.
Definition at line 171 of file single.hpp.
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virtual |
Schedule function.
Reimplemented from Gecode::NaryPropagator< View, PC_INT_NONE >.
Definition at line 177 of file single.hpp.
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inlinevirtual |
Delete propagator and return its size.
Reimplemented from Gecode::NaryPropagator< View, PC_INT_NONE >.
Definition at line 160 of file single.hpp.
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virtual |
Give advice to propagator.
Reimplemented from Gecode::Propagator.
Definition at line 183 of file single.hpp.
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virtual |
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inlinestatic |
Post propagator that s precedes t in x.
Definition at line 96 of file single.hpp.
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protected |
The advisor council.
Definition at line 75 of file precede.hh.
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protected |
The value s must precede t.
Definition at line 77 of file precede.hh.
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protected |
Definition at line 77 of file precede.hh.
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protected |
Pointers updated during propagation.
Definition at line 79 of file precede.hh.
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protected |
Definition at line 79 of file precede.hh.
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protected |
Definition at line 79 of file precede.hh.