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circuit.hh
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37 
38 #ifndef __GECODE_INT_CIRCUIT_HH__
39 #define __GECODE_INT_CIRCUIT_HH__
40 
41 #include <gecode/int.hh>
42 #include <gecode/int/distinct.hh>
43 
49 namespace Gecode { namespace Int { namespace Circuit {
50 
58  template<class View, class Offset>
59  class Base : public NaryPropagator<View,Int::PC_INT_DOM> {
60  protected:
63  int start;
69  Base(Space& home, bool share, Base& p);
71  Base(Home home, ViewArray<View>& x, Offset& o);
73  ExecStatus connected(Space& home);
75  ExecStatus path(Space& home);
76  public:
78  virtual size_t dispose(Space& home);
79  };
80 
91  template<class View, class Offset>
92  class Val : public Base<View,Offset> {
93  protected:
100  Val(Space& home, bool share, Val& p);
102  Val(Home home, ViewArray<View>& x, Offset& o);
103  public:
105  virtual Actor* copy(Space& home, bool share);
107  virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
109  virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
111  static ExecStatus post(Home home, ViewArray<View>& x, Offset& o);
112  };
113 
124  template<class View, class Offset>
125  class Dom : public Base<View,Offset> {
126  protected:
127  using Base<View,Offset>::x;
128  using Base<View,Offset>::y;
131  using Base<View,Offset>::o;
135  Dom(Space& home, bool share, Dom& p);
137  Dom(Home home, ViewArray<View>& x, Offset& o);
138  public:
140  virtual Actor* copy(Space& home, bool share);
147  virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
149  virtual void reschedule(Space& home);
151  virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
153  static ExecStatus post(Home home, ViewArray<View>& x, Offset& o);
154  };
155 
156 }}}
157 
161 
162 #endif
163 
164 // STATISTICS: int-prop
virtual PropCost cost(const Space &home, const ModEventDelta &med) const
Cost function.
Definition: dom.hpp:62
Int::Distinct::DomCtrl< View > dc
Propagation controller for propagating distinct.
Definition: circuit.hh:133
Offset o
Offset transformation.
Definition: circuit.hh:67
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition: dom.hpp:82
ExecStatus path(Space &home)
Ensure path property: prune edges that could give too small cycles.
Definition: base.hpp:240
ViewArray< View > x
Array of views.
Definition: propagator.hpp:152
Val(Space &home, bool share, Val &p)
Constructor for cloning p.
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition: val.hpp:68
ExecStatus connected(Space &home)
Check whether the view value graph is strongly connected.
Definition: base.hpp:73
Computation spaces.
Definition: core.hpp:1748
Base-class for both propagators and branchers.
Definition: core.hpp:696
virtual Actor * copy(Space &home, bool share)
Copy propagator during cloning.
Definition: dom.hpp:56
int start
Remember where to start the next time the propagator runs.
Definition: circuit.hh:63
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:236
virtual Actor * copy(Space &home, bool share)
Copy propagator during cloning.
Definition: val.hpp:56
virtual void reschedule(Space &home)
Schedule function.
Definition: dom.hpp:71
ModEventDelta med
A set of modification events (used during propagation)
Definition: core.hpp:1103
n-ary propagator
Definition: propagator.hpp:149
ViewArray< View > y
Array for performing value propagation for distinct.
Definition: circuit.hh:65
View arrays.
Definition: array.hpp:234
"Value-consistent" circuit propagator
Definition: circuit.hh:92
Converter with fixed offset.
Definition: view.hpp:617
virtual PropCost cost(const Space &home, const ModEventDelta &med) const
Cost function (returns high linear)
Definition: val.hpp:62
static ExecStatus post(Home home, ViewArray< View > &x, Offset &o)
Post propagator for circuit on x.
Definition: val.hpp:84
static ExecStatus post(Home home, ViewArray< View > &x, Offset &o)
Post propagator for circuit on x.
Definition: dom.hpp:118
Base(Space &home, bool share, Base &p)
Constructor for cloning p.
Propagation cost.
Definition: core.hpp:554
ExecStatus
Definition: core.hpp:540
Dom(Space &home, bool share, Dom &p)
Constructor for cloning p.
Gecode toplevel namespace
int ModEventDelta
Modification event deltas.
Definition: core.hpp:169
Home class for posting propagators
Definition: core.hpp:922
Base-class for circuit propagator.
Definition: circuit.hh:59
"Domain consistent" circuit propagator
Definition: circuit.hh:125
virtual size_t dispose(Space &home)
Delete propagator and return its size.
Definition: base.hpp:294
Propagation controller for domain consistent distinct.
Definition: distinct.hh:220