Generated on Fri Oct 19 11:25:43 2018 for Gecode by doxygen 1.6.3

Warnsdorff Class Reference

Custom brancher for knight's tours using Warnsdorff's rule. More...

List of all members.

Classes

class  Choice
 Choice More...

Public Member Functions

virtual bool status (const Space &) const
 Check status of brancher, return true if alternatives left.
virtual Gecode::Choicechoice (Space &)
 Return choice.
virtual Choicechoice (const Space &, Archive &e)
 Return choice.
virtual ExecStatus commit (Space &home, const Gecode::Choice &_c, unsigned int a)
 Perform commit for choice _c and alternative a.
virtual void print (const Space &, const Gecode::Choice &_c, unsigned int a, std::ostream &o) const
 Print explanation.
virtual Actorcopy (Space &home)
 Copy brancher.
virtual size_t dispose (Space &)
 Delete brancher and return its size.

Static Public Member Functions

static void post (Home home, const IntVarArgs &x)
 Post brancher.

Protected Member Functions

 Warnsdorff (Home home, ViewArray< Int::IntView > &xv)
 Construct brancher.
 Warnsdorff (Space &home, Warnsdorff &b)
 Copy constructor.

Protected Attributes

ViewArray< Int::IntViewx
 Views of the brancher.
int start
 Next variable to branch on.

Detailed Description

Custom brancher for knight's tours using Warnsdorff's rule.

This class implements Warnsdorff's rule for finding knight's tours. The next position is choosen by taking the jump that minimizes the number of alternatives in the next step.

Definition at line 58 of file knights.cpp.


Constructor & Destructor Documentation

Warnsdorff::Warnsdorff ( Home  home,
ViewArray< Int::IntView > &  xv 
) [inline, protected]

Construct brancher.

Definition at line 84 of file knights.cpp.

Warnsdorff::Warnsdorff ( Space home,
Warnsdorff b 
) [inline, protected]

Copy constructor.

Definition at line 87 of file knights.cpp.


Member Function Documentation

virtual bool Warnsdorff::status ( const Space  )  const [inline, virtual]

Check status of brancher, return true if alternatives left.

Implements Gecode::Brancher.

Definition at line 93 of file knights.cpp.

virtual Gecode::Choice* Warnsdorff::choice ( Space  )  [inline, virtual]

Return choice.

Implements Gecode::Brancher.

Definition at line 104 of file knights.cpp.

virtual Choice* Warnsdorff::choice ( const Space ,
Archive e 
) [inline, virtual]

Return choice.

Implements Gecode::Brancher.

Definition at line 120 of file knights.cpp.

virtual ExecStatus Warnsdorff::commit ( Space home,
const Gecode::Choice _c,
unsigned int  a 
) [inline, virtual]

Perform commit for choice _c and alternative a.

Implements Gecode::Brancher.

Definition at line 126 of file knights.cpp.

virtual void Warnsdorff::print ( const Space ,
const Gecode::Choice _c,
unsigned int  a,
std::ostream &  o 
) const [inline, virtual]

Print explanation.

Reimplemented from Gecode::Brancher.

Definition at line 135 of file knights.cpp.

virtual Actor* Warnsdorff::copy ( Space home  )  [inline, virtual]

Copy brancher.

Implements Gecode::Actor.

Definition at line 144 of file knights.cpp.

static void Warnsdorff::post ( Home  home,
const IntVarArgs x 
) [inline, static]

Post brancher.

Definition at line 148 of file knights.cpp.

virtual size_t Warnsdorff::dispose ( Space  )  [inline, virtual]

Delete brancher and return its size.

Reimplemented from Gecode::Actor.

Definition at line 153 of file knights.cpp.


Member Data Documentation

Views of the brancher.

Definition at line 61 of file knights.cpp.

int Warnsdorff::start [mutable, protected]

Next variable to branch on.

Definition at line 63 of file knights.cpp.


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