Generated on Thu Jan 16 2025 00:00:00 for Gecode by doxygen 1.14.0
Gecode::Search::Seq::LDS< Tracer > Class Template Reference

Limited discrepancy search engine implementation. More...

#include <lds.hh>

Public Member Functions

 LDS (Space *s, const Options &o)
 Initialize for space s with options o.
virtual Spacenext (void)
 Return next solution (NULL, if none exists or search has been stopped)
virtual Statistics statistics (void) const
 Return statistics.
void constrain (const Space &b)
 Constrain future solutions to be better than b (should never be called)
void reset (Space *s)
 Reset engine to restart at space s.
virtual bool stopped (void) const
 Check whether engine has been stopped.
virtual ~LDS (void)
 Destructor.
Public Member Functions inherited from Gecode::Search::Engine
virtual NoGoodsnogoods (void)
 Return no-goods (the no-goods are empty)
virtual ~Engine (void)
 Destructor.

Protected Attributes

Options opt
 Search options.
Probe< Tracere
 The probe engine.
Spaceroot
 Root node for problem.
unsigned int d
 Current discrepancy.
bool no_solution
 Solution found for current discrepancy.

Additional Inherited Members

Static Public Member Functions inherited from Gecode::HeapAllocated
static void * operator new (size_t s)
 Memory management.
static void operator delete (void *p)
 Free memory allocated from heap.

Detailed Description

template<class Tracer>
class Gecode::Search::Seq::LDS< Tracer >

Limited discrepancy search engine implementation.

Definition at line 105 of file lds.hh.

Constructor & Destructor Documentation

◆ LDS()

template<class Tracer>
Gecode::Search::Seq::LDS< Tracer >::LDS ( Space * s,
const Options & o )
inline

Initialize for space s with options o.

Definition at line 272 of file lds.hpp.

◆ ~LDS()

template<class Tracer>
Gecode::Search::Seq::LDS< Tracer >::~LDS ( void )
virtual

Destructor.

Definition at line 345 of file lds.hpp.

Member Function Documentation

◆ next()

template<class Tracer>
Space * Gecode::Search::Seq::LDS< Tracer >::next ( void )
virtual

Return next solution (NULL, if none exists or search has been stopped)

Implements Gecode::Search::Engine.

Definition at line 289 of file lds.hpp.

◆ statistics()

template<class Tracer>
Statistics Gecode::Search::Seq::LDS< Tracer >::statistics ( void ) const
virtual

Return statistics.

Implements Gecode::Search::Engine.

Definition at line 315 of file lds.hpp.

◆ constrain()

template<class Tracer>
void Gecode::Search::Seq::LDS< Tracer >::constrain ( const Space & b)
inlinevirtual

Constrain future solutions to be better than b (should never be called)

Reimplemented from Gecode::Search::Engine.

Definition at line 339 of file lds.hpp.

◆ reset()

template<class Tracer>
void Gecode::Search::Seq::LDS< Tracer >::reset ( Space * s)
inlinevirtual

Reset engine to restart at space s.

Reimplemented from Gecode::Search::Engine.

Definition at line 322 of file lds.hpp.

◆ stopped()

template<class Tracer>
bool Gecode::Search::Seq::LDS< Tracer >::stopped ( void ) const
virtual

Check whether engine has been stopped.

Implements Gecode::Search::Engine.

Definition at line 309 of file lds.hpp.

Member Data Documentation

◆ opt

template<class Tracer>
Options Gecode::Search::Seq::LDS< Tracer >::opt
protected

Search options.

Definition at line 108 of file lds.hh.

◆ e

template<class Tracer>
Probe<Tracer> Gecode::Search::Seq::LDS< Tracer >::e
protected

The probe engine.

Definition at line 110 of file lds.hh.

◆ root

template<class Tracer>
Space* Gecode::Search::Seq::LDS< Tracer >::root
protected

Root node for problem.

Definition at line 112 of file lds.hh.

◆ d

template<class Tracer>
unsigned int Gecode::Search::Seq::LDS< Tracer >::d
protected

Current discrepancy.

Definition at line 114 of file lds.hh.

◆ no_solution

template<class Tracer>
bool Gecode::Search::Seq::LDS< Tracer >::no_solution
protected

Solution found for current discrepancy.

Definition at line 116 of file lds.hh.


The documentation for this class was generated from the following files: