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nogoods.hh
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2 /*
3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
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6  * Copyright:
7  * Christian Schulte, 2013
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33 
34 #ifndef __GECODE_SEARCH_NOGOODS_HH__
35 #define __GECODE_SEARCH_NOGOODS_HH__
36 
37 #include <gecode/search.hh>
38 
39 namespace Gecode { namespace Search {
40 
42  class GECODE_VTABLE_EXPORT NoNGL : public NGL {
43  public:
45  NoNGL(void);
47  NoNGL(Space& home);
49  NoNGL(Space& home, NoNGL& ngl);
51  virtual void subscribe(Space& home, Propagator& p);
53  virtual void reschedule(Space& home, Propagator& p);
55  virtual void cancel(Space& home, Propagator& p);
57  virtual NGL::Status status(const Space& home) const;
59  virtual ExecStatus prune(Space& home);
61  virtual NGL* copy(Space& home);
62  };
63 
66  protected:
70  unsigned int n;
72  NoGoodsProp(Space& home, NGL* root);
74  NoGoodsProp(Space& home, NoGoodsProp& p);
75  public:
77  virtual Actor* copy(Space& home);
79  virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
81  virtual void reschedule(Space& home);
83  virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
85  template<class Path>
86  static ExecStatus post(Space& home, const Path& p);
88  virtual size_t dispose(Space& home);
89  };
90 
91 }}
92 
94 
95 #endif
96 
97 // STATISTICS: search-other
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:232
Base-class for both propagators and branchers.
Definition: core.hpp:628
No-good literal recorded during search.
Definition: core.hpp:1340
Status
The status of a no-good literal.
Definition: core.hpp:1346
Propagation cost.
Definition: core.hpp:486
Base-class for propagators.
Definition: core.hpp:1064
No-good propagator.
Definition: nogoods.hh:65
unsigned int n
Number of no-good literals with subscriptions.
Definition: nogoods.hh:70
NGL * root
Root of no-good literal tree.
Definition: nogoods.hh:68
Class for a sentinel no-good literal.
Definition: nogoods.hh:42
Computation spaces.
Definition: core.hpp:1742
ExecStatus
Definition: core.hpp:472
void post(Home home, Term *t, int n, FloatRelType frt, FloatVal c)
Post propagator for linear constraint over floats.
Definition: post.cpp:238
int ModEventDelta
Modification event deltas.
Definition: core.hpp:89
ExecStatus prune(Space &home, ViewArray< VX > &x, ConstIntView)
Definition: rel.hpp:264
void cancel(Space &home, Propagator &p, IntSet &y)
Definition: rel.hpp:81
void subscribe(Space &home, Propagator &p, IntSet &y)
Definition: rel.hpp:71
void reschedule(Space &home, Propagator &p, IntSet &y)
Definition: rel.hpp:92
#define GECODE_SEARCH_EXPORT
Definition: search.hh:67
#define GECODE_VTABLE_EXPORT
Definition: support.hh:72