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Gecode::Search::Cutoff Class Reference
[Search engines]

Base class for cutoff generators for restart-based meta engine. More...

#include <search.hh>

List of all members.

Constructors and member functions



 Cutoff (void)
 Default constructor.
virtual unsigned long int operator() (void) const =0
 Return the current cutoff value.
virtual unsigned long int operator++ (void)=0
 Increment and return the next cutoff value.
virtual ~Cutoff (void)
 Destructor.

Predefined cutoff generators



static Cutoffconstant (unsigned long int scale=Config::slice)
 Create generator for constant sequence with constant s.
static Cutofflinear (unsigned long int scale=Config::slice)
 Create generator for linear sequence scaled by scale.
static Cutoffgeometric (unsigned long int scale=Config::slice, double base=Config::base)
static Cutoffluby (unsigned long int scale=Config::slice)
 Create generator for luby sequence with scale-factor scale.
static Cutoffrnd (unsigned int seed, unsigned long int min, unsigned long int max, unsigned long int n)
static Cutoffappend (Cutoff *c1, unsigned long int n, Cutoff *c2)
 Append cutoff values from c2 after n values from c1.
static Cutoffmerge (Cutoff *c1, Cutoff *c2)
 Merge cutoff values from c1 with values from c2.
static Cutoffrepeat (Cutoff *c, unsigned long int n)
 Create generator that repeats n times each cutoff value from c.

Detailed Description

Base class for cutoff generators for restart-based meta engine.

Definition at line 472 of file search.hh.


Constructor & Destructor Documentation

Gecode::Search::Cutoff::Cutoff ( void   )  [inline]

Default constructor.

Definition at line 41 of file cutoff.hpp.

Gecode::Search::Cutoff::~Cutoff ( void   )  [inline, virtual]

Destructor.

Definition at line 43 of file cutoff.hpp.


Member Function Documentation

virtual unsigned long int Gecode::Search::Cutoff::operator() ( void   )  const [pure virtual]
virtual unsigned long int Gecode::Search::Cutoff::operator++ ( void   )  [pure virtual]
Cutoff * Gecode::Search::Cutoff::constant ( unsigned long int  scale = Config::slice  )  [static]

Create generator for constant sequence with constant s.

Definition at line 148 of file cutoff.cpp.

Cutoff * Gecode::Search::Cutoff::linear ( unsigned long int  scale = Config::slice  )  [static]

Create generator for linear sequence scaled by scale.

Definition at line 152 of file cutoff.cpp.

Cutoff * Gecode::Search::Cutoff::geometric ( unsigned long int  scale = Config::slice,
double  base = Config::base 
) [static]

Create generator for geometric sequence scaled by scale using base base

Definition at line 160 of file cutoff.cpp.

Cutoff * Gecode::Search::Cutoff::luby ( unsigned long int  scale = Config::slice  )  [static]

Create generator for luby sequence with scale-factor scale.

Reimplemented in Gecode::Search::CutoffLuby.

Definition at line 156 of file cutoff.cpp.

Cutoff * Gecode::Search::Cutoff::rnd ( unsigned int  seed,
unsigned long int  min,
unsigned long int  max,
unsigned long int  n 
) [static]

Create generator for random sequence with seed seed that generates values between min and max with n steps between the extreme values (use 0 for n to get step size 1).

Definition at line 164 of file cutoff.cpp.

Cutoff * Gecode::Search::Cutoff::append ( Cutoff c1,
unsigned long int  n,
Cutoff c2 
) [static]

Append cutoff values from c2 after n values from c1.

Definition at line 171 of file cutoff.cpp.

Cutoff * Gecode::Search::Cutoff::merge ( Cutoff c1,
Cutoff c2 
) [static]

Merge cutoff values from c1 with values from c2.

Definition at line 175 of file cutoff.cpp.

Cutoff * Gecode::Search::Cutoff::repeat ( Cutoff c,
unsigned long int  n 
) [static]

Create generator that repeats n times each cutoff value from c.

Definition at line 179 of file cutoff.cpp.


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