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support.hh
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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, 2008
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9  * Last modified:
10  * $Date: 2013-03-07 20:56:21 +0100 (Thu, 07 Mar 2013) $ by $Author: schulte $
11  * $Revision: 13463 $
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37 
38 #ifndef __GECODE_SEARCH_SUPPORT_HH__
39 #define __GECODE_SEARCH_SUPPORT_HH__
40 
41 #include <gecode/search.hh>
42 
43 namespace Gecode { namespace Search {
44 
46  forceinline Space*
47  snapshot(Space* s, const Options& o, bool share=true);
48 
51  public:
53  FailedSpace(void);
56  virtual Space* copy(bool share);
57  };
58 
60  template<class Worker>
61  class WorkerToEngine : public Engine {
62  protected:
64  public:
66  WorkerToEngine(Space* s, size_t sz, const Options& o);
68  virtual Space* next(void);
70  virtual Search::Statistics statistics(void) const;
72  virtual bool stopped(void) const;
74  virtual void reset(Space* s);
75  };
76 
77 
78 
80  snapshot(Space* s, const Options& o, bool share) {
81  return o.clone ? s->clone(share) : s;
82  }
83 
84 
87  fail();
88  }
89 
90 
91  template<class Worker>
93  const Options& o)
94  : w(s,sz,o) {}
95  template<class Worker>
96  Space*
98  return w.next();
99  }
100  template<class Worker>
103  return w.statistics();
104  }
105  template<class Worker>
106  bool
108  return w.stopped();
109  }
110  template<class Worker>
111  void
113  w.reset(s);
114  }
115 
116 }}
117 
118 #endif
119 
120 // STATISTICS: search-other