dfs.hpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2003
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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namespace Gecode { namespace Search {
GECODE_SEARCH_EXPORT Engine*
dfsengine(Space* s, const Options& o);
template<class T>
class DfsBuilder : public Builder {
using Builder::opt;
public:
DfsBuilder(const Options& opt);
virtual Engine* operator() (Space* s) const;
};
template<class T>
inline
DfsBuilder<T>::DfsBuilder(const Options& opt)
: Builder(opt,DFS<T>::best) {}
template<class T>
Engine*
DfsBuilder<T>::operator() (Space* s) const {
return build<T,DFS>(s,opt);
}
}}
namespace Gecode {
template<class T>
inline
DFS<T>::DFS(T* s, const Search::Options& o)
: Search::Base<T>(Search::dfsengine(s,o)) {}
template<class T>
inline T*
dfs(T* s, const Search::Options& o) {
DFS<T> d(s,o);
return d.next();
}
template<class T>
SEB
dfs(const Search::Options& o) {
return new Search::DfsBuilder<T>(o);
}
}
// STATISTICS: search-other
Gecode::DFS
Depth-first search engine.
Definition search.hh:1036
Gecode::DFS::DFS
DFS(T *s, const Search::Options &o=Search::Options::def)
Initialize search engine for space s with options o.
Definition dfs.hpp:68
Gecode::Search::Base::Base
Base(Engine *e=NULL)
Constructor.
Definition base.hpp:42
Gecode::Search::Builder::opt
Options opt
Stored and already expanded options.
Definition search.hh:968
Gecode::Search::Builder::Builder
Builder(const Options &opt, bool best)
Initialize with options opt and best solution search support.
Definition build.hpp:37
Gecode::Search::Builder::best
bool best(void) const
Whether engine is a best solution search engine.
Definition build.hpp:48
Gecode::Search::DfsBuilder
A DFS engine builder.
Definition dfs.hpp:42
Gecode::Search::DfsBuilder::operator()
virtual Engine * operator()(Space *s) const
The actual build function.
Definition dfs.hpp:58
Gecode::Search::DfsBuilder::DfsBuilder
DfsBuilder(const Options &opt)
The constructor.
Definition dfs.hpp:53
Gecode::Search::Engine
Search engine implementation interface
Definition search.hh:899
Gecode::Search::Options
Search engine options
Definition search.hh:746
Gecode::Space
Computation spaces.
Definition core.hpp:1742
Gecode::Search
Search engines
Gecode::Search::build
Engine * build(Space *s, const Options &opt)
Build an engine of type E for a script T.
Definition build.hpp:58
Gecode::Search::dfsengine
Engine * dfsengine(Space *s, const Options &o)
Create depth-first engine.
Definition dfs.cpp:45
Gecode
Gecode toplevel namespace
Gecode::SEB
Search::Builder * SEB
Type for a search engine builder.
Definition search.hh:993
Gecode::dfs
T * dfs(T *s, const Search::Options &o=Search::Options::def)
Invoke depth-first search engine for subclass T of space s with options o.
Definition dfs.hpp:73
GECODE_SEARCH_EXPORT
#define GECODE_SEARCH_EXPORT
Definition search.hh:67