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dead.cpp
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4  * Christian Schulte <schulte@gecode.org>
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37 
39 
40 namespace Gecode { namespace Search { namespace Seq {
41 
43  template<class Tracer>
44  class GECODE_SEARCH_EXPORT Dead : public Engine {
45  protected:
50  public:
52  Dead(const Options& o, const Statistics& stat0);
54  virtual Space* next(void);
56  virtual Statistics statistics(void) const;
58  virtual bool stopped(void) const;
60  virtual ~Dead(void);
61  };
62 
63  template<class Tracer>
64  Dead<Tracer>::Dead(const Options& o, const Statistics& stat0)
65  : tracer(o.tracer), stat(stat0) {
66  tracer.engine(SearchTracer::EngineType::AOE, 1U);
67  tracer.worker();
68  }
69 
70  template<class Tracer>
71  Space*
73  return NULL;
74  }
75 
76  template<class Tracer>
77  bool
78  Dead<Tracer>::stopped(void) const {
79  return false;
80  }
81 
82  template<class Tracer>
85  return stat;
86  }
87 
88  template<class Tracer>
90  tracer.done();
91  }
92 
93  Engine*
94  dead(const Options& o, const Statistics& stat) {
95  if (o.tracer)
96  return new Dead<TraceRecorder>(o,stat);
97  else
98  return new Dead<NoTraceRecorder>(o,stat);
99  }
100 
101 
102 }}}
103 
104 // STATISTICS: search-seq
virtual bool stopped(void) const
Check whether engine has been stopped.
Definition: dead.cpp:78
Search engine implementation interface
Definition: search.hh:901
virtual ~Dead(void)
Delete.
Definition: dead.cpp:89
Search engine statistics
Definition: search.hh:149
#define GECODE_SEARCH_EXPORT
Definition: search.hh:69
Search engine options
Definition: search.hh:748
Engine * dead(const Options &o, const Statistics &stat)
Definition: dead.cpp:94
Computation spaces.
Definition: core.hpp:1668
Tracer tracer
Search tracer.
Definition: dead.cpp:47
SearchTracer * tracer
Tracer object for tracing search.
Definition: search.hh:771
A dead engine (failed root)
Definition: dead.cpp:44
Statistics stat
Statistics.
Definition: dead.cpp:49
virtual Statistics statistics(void) const
Return statistics.
Definition: dead.cpp:84
Tracer.
Definition: tracer.hpp:153
Dead(const Options &o, const Statistics &stat0)
Initialize.
Definition: dead.cpp:64
Gecode toplevel namespace
virtual Space * next(void)
Return next solution (NULL, if none exists or search has been stopped)
Definition: dead.cpp:72