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dead.cpp
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1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christian Schulte <schulte@gecode.org>
5 *
6 * Copyright:
7 * Christian Schulte, 2015
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33
35
36namespace Gecode { namespace Search { namespace Seq {
37
39 template<class Tracer>
41 protected:
46 public:
48 Dead(const Options& o, const Statistics& stat0);
50 virtual Space* next(void);
52 virtual Statistics statistics(void) const;
54 virtual bool stopped(void) const;
56 virtual ~Dead(void);
57 };
58
59 template<class Tracer>
60 Dead<Tracer>::Dead(const Options& o, const Statistics& stat0)
61 : tracer(o.tracer), stat(stat0) {
63 tracer.worker();
64 }
65
66 template<class Tracer>
67 Space*
69 return NULL;
70 }
71
72 template<class Tracer>
73 bool
75 return false;
76 }
77
78 template<class Tracer>
81 return stat;
82 }
83
84 template<class Tracer>
86 tracer.done();
87 }
88
89 Engine*
90 dead(const Options& o, const Statistics& stat) {
91 if (o.tracer)
92 return new Dead<TraceRecorder>(o,stat);
93 else
94 return new Dead<NoTraceRecorder>(o,stat);
95 }
96
97
98}}}
99
100// STATISTICS: search-seq
@ AOE
Unspecified engine (any other engine)
Definition search.hh:199
Search engine implementation interface
Definition search.hh:899
Search engine options
Definition search.hh:746
SearchTracer * tracer
Tracer object for tracing search.
Definition search.hh:769
A dead engine (failed root)
Definition dead.cpp:40
Tracer tracer
Search tracer.
Definition dead.cpp:43
Statistics stat
Statistics.
Definition dead.cpp:45
Dead(const Options &o, const Statistics &stat0)
Initialize.
Definition dead.cpp:60
virtual ~Dead(void)
Delete.
Definition dead.cpp:85
virtual Space * next(void)
Return next solution (NULL, if none exists or search has been stopped)
Definition dead.cpp:68
virtual bool stopped(void) const
Check whether engine has been stopped.
Definition dead.cpp:74
virtual Statistics statistics(void) const
Return statistics.
Definition dead.cpp:80
Search engine statistics
Definition search.hh:147
Computation spaces.
Definition core.hpp:1742
Engine * dead(const Options &o, const Statistics &stat)
Definition dead.cpp:90
Gecode toplevel namespace
#define GECODE_SEARCH_EXPORT
Definition search.hh:67