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gecode
search
lds.hpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Christian Schulte <schulte@gecode.org>
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*
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* Copyright:
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* Christian Schulte, 2004, 2016
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*
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* This file is part of Gecode, the generic constraint
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* development environment:
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* http://www.gecode.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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namespace
Gecode
{
namespace
Search {
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GECODE_SEARCH_EXPORT
Engine*
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ldsengine
(Space* s,
const
Options& o);
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template
<
class
T>
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class
LdsBuilder
:
public
Builder
{
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using
Builder::opt
;
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public
:
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LdsBuilder
(
const
Options
& opt);
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virtual
Engine
*
operator()
(
Space
* s)
const
;
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};
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template
<
class
T>
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inline
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LdsBuilder<T>::LdsBuilder
(
const
Options
&
opt
)
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:
Builder
(
opt
,
LDS
<T>::best) {}
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template
<
class
T>
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Engine
*
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LdsBuilder<T>::operator()
(
Space
* s)
const
{
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return
build<T,LDS>(s,
opt
);
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}
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}}
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namespace
Gecode
{
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template
<
class
T>
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forceinline
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LDS<T>::LDS
(T* s,
const
Search::Options
& o)
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: Search::Base<T>(Search::
ldsengine
(s,o)) {}
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template
<
class
T>
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T*
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lds
(T* s,
const
Search::Options
& o) {
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LDS<T>
lds
(s,o);
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return
lds
.next();
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}
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template
<
class
T>
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SEB
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lds
(
const
Search::Options
& o) {
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return
new
Search::LdsBuilder<T>
(o);
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}
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}
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// STATISTICS: search-other
GECODE_SEARCH_EXPORT
#define GECODE_SEARCH_EXPORT
Definition:
search.hh:67
Gecode::Search::Options
Search engine options
Definition:
search.hh:746
Gecode::Search::Builder
A class for building search engines.
Definition:
search.hh:965
Gecode::LDS::LDS
LDS(T *s, const Search::Options &o=Search::Options::def)
Initialize engine for space s and options o.
Definition:
lds.hpp:69
Gecode::LDS
Limited discrepancy search engine.
Definition:
search.hh:1108
Gecode::Search::LdsBuilder
A DFS engine builder.
Definition:
lds.hpp:42
Gecode::Search::LdsBuilder::LdsBuilder
LdsBuilder(const Options &opt)
The constructor.
Definition:
lds.hpp:53
Gecode::Space
Computation spaces.
Definition:
core.hpp:1742
Gecode
Gecode toplevel namespace
Gecode::SEB
Search::Builder * SEB
Type for a search engine builder.
Definition:
search.hh:993
Test::opt
Options opt
The options.
Definition:
test.cpp:97
Gecode::Search::ldsengine
Engine * ldsengine(Space *s, const Options &o)
Create lds engine.
Definition:
lds.cpp:45
Gecode::Search::Engine
Search engine implementation interface
Definition:
search.hh:899
Gecode::Search::LdsBuilder::operator()
virtual Engine * operator()(Space *s) const
The actual build function.
Definition:
lds.hpp:58
forceinline
#define forceinline
Definition:
config.hpp:192
Gecode::Search::Builder::opt
Options opt
Stored and already expanded options.
Definition:
search.hh:968
Gecode::lds
T * lds(T *s, const Search::Options &o)
Invoke limited-discrepancy search for s as root node and optionso.
Definition:
lds.hpp:74