Generated on Thu Jan 20 2022 00:00:00 for Gecode by doxygen 1.9.1
dfs.hpp
Go to the documentation of this file.
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, 2003
8  *
9  * This file is part of Gecode, the generic constraint
10  * development environment:
11  * http://www.gecode.org
12  *
13  * Permission is hereby granted, free of charge, to any person obtaining
14  * a copy of this software and associated documentation files (the
15  * "Software"), to deal in the Software without restriction, including
16  * without limitation the rights to use, copy, modify, merge, publish,
17  * distribute, sublicense, and/or sell copies of the Software, and to
18  * permit persons to whom the Software is furnished to do so, subject to
19  * the following conditions:
20  *
21  * The above copyright notice and this permission notice shall be
22  * included in all copies or substantial portions of the Software.
23  *
24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31  *
32  */
33 
34 namespace Gecode { namespace Search {
35 
37  GECODE_SEARCH_EXPORT Engine*
38  dfsengine(Space* s, const Options& o);
39 
41  template<class T>
42  class DfsBuilder : public Builder {
43  using Builder::opt;
44  public:
46  DfsBuilder(const Options& opt);
48  virtual Engine* operator() (Space* s) const;
49  };
50 
51  template<class T>
52  inline
54  : Builder(opt,DFS<T>::best) {}
55 
56  template<class T>
57  Engine*
59  return build<T,DFS>(s,opt);
60  }
61 
62 }}
63 
64 namespace Gecode {
65 
66  template<class T>
67  inline
68  DFS<T>::DFS(T* s, const Search::Options& o)
69  : Search::Base<T>(Search::dfsengine(s,o)) {}
70 
71  template<class T>
72  inline T*
73  dfs(T* s, const Search::Options& o) {
74  DFS<T> d(s,o);
75  return d.next();
76  }
77 
78  template<class T>
79  SEB
80  dfs(const Search::Options& o) {
81  return new Search::DfsBuilder<T>(o);
82  }
83 
84 }
85 
86 // STATISTICS: search-other
Depth-first search engine.
Definition: search.hh:1036
DFS(T *s, const Search::Options &o=Search::Options::def)
Initialize search engine for space s with options o.
Definition: dfs.hpp:68
A class for building search engines.
Definition: search.hh:965
Options opt
Stored and already expanded options.
Definition: search.hh:968
A DFS engine builder.
Definition: dfs.hpp:42
virtual Engine * operator()(Space *s) const
The actual build function.
Definition: dfs.hpp:58
DfsBuilder(const Options &opt)
The constructor.
Definition: dfs.hpp:53
Search engine implementation interface
Definition: search.hh:899
Search engine options
Definition: search.hh:746
Computation spaces.
Definition: core.hpp:1742
Engine * dfsengine(Space *s, const Options &o)
Create depth-first engine.
Definition: dfs.cpp:45
Gecode::IntSet d(v, 7)
Options opt
The options.
Definition: test.cpp:97
#define GECODE_SEARCH_EXPORT
Definition: search.hh:67