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Gecode::Int::GCC::VarValGraph

Gecode::Int::GCC::VarValGraph< View, Card, isView > Class Template Reference

List of all members.

Detailed Description

template<class View, class Card, bool isView>
class Gecode::Int::GCC::VarValGraph< View, Card, isView >

Variable-value-graph used during propagation.

Definition at line 449 of file graphsup.icc.

Constructors and Destructors

 VarValGraph (ViewArray< View > &, ViewArray< View > &, ViewArray< Card > &, int, int, int)
 Constructor for the variable-value-graph.
 ~VarValGraph (void)
 Destructor.

Graph-interface

bool failed (void)
 Check whether propagation failed This is actually needed to cope with failures occuring in functions returing only a boolean value and not an ExecStatus.
void failed (bool b)
 Set the failure flag of the graph.
bool min_require (Space *home)
 Check whether minimum requirements shrink variable domains.
bool sync (void)
 Check whether propagation failed This is actually needed to cope with failures occuring in functions returing only a boolean value and not an ExecStatus.
void print_graph (void)
 Print graph information for debugging.
template<BC >
void print_matching (void)
 Print matching information for debugging.
void print_match (void)
 Gather matching information.
void print_edges (void)
 Print edge information.
void * operator new (size_t t)
 Allocate memory for the graph.
void operator delete (void *p)
 Free the memory for the graph.
template<BC >
bool narrow (Space *)
 Remove all those edges from the graph that do not belong to any possible maximum matching on the graph.
template<BC >
bool maximum_matching (void)
 Compute a maximum matching M on the graph.
template<BC >
void free_alternating_paths (void)
 Compute possible free alternating paths in the graph.
template<BC >
void strongly_connected_components (void)
 Compute possible strongly connected components of the graph.
template<BC >
bool augmenting_path (VVGNode *)
 Test whether the current maximal matching on the graph can be augmented by an alternating path starting and ending with a free node.
template<BC >
void dfs (VVGNode *, bool[], bool[], int[], Support::StaticStack< VVGNode * > &, Support::StaticStack< VVGNode * > &, int &)
 Perform depth-first search on the graph.

Constructor & Destructor Documentation

template<class View, class Card, bool isView>
Gecode::Int::GCC::VarValGraph< View, Card, isView >::VarValGraph (  ViewArray< View > &  xref,
ViewArray< View > &  yref,
ViewArray< Card > &  kref,
int  noe,
int  smin,
int  smax
) 
 

Constructor for the variable-value-graph.

The variable parition is initialized with the variables from x, the value partition is initialized with the values from v, where $ \forall v_i\in V:$ val_idx[i] is the index of $ v_i$ in $ k $ . nov denotes the cardinality of the value partition in the graph, noe the number of edges in the graph, min_occ the sum over the minimal occurences of all values and max_occ the sum over the maximal occurences of all values.

Definition at line 1251 of file graphsup.icc.

template<class View, class Card, bool isView>
Gecode::Int::GCC::VarValGraph< View, Card, isView >::~VarValGraph (  void   )  [inline]
 

Destructor.

Definition at line 2354 of file graphsup.icc.

Member Function Documentation

template<class View, class Card, bool isView>
bool Gecode::Int::GCC::VarValGraph< View, Card, isView >::failed (  void   )  [inline]
 

Check whether propagation failed This is actually needed to cope with failures occuring in functions returing only a boolean value and not an ExecStatus.

Definition at line 1358 of file graphsup.icc.

template<class View, class Card, bool isView>
void Gecode::Int::GCC::VarValGraph< View, Card, isView >::failed (  bool  b  )  [inline]
 

Set the failure flag of the graph.

Definition at line 1364 of file graphsup.icc.

template<class View, class Card, bool isView>
bool Gecode::Int::GCC::VarValGraph< View, Card, isView >::min_require (  Space *  home  )  [inline]
 

Check whether minimum requirements shrink variable domains.

Definition at line 1372 of file graphsup.icc.

template<class View, class Card, bool isView>
bool Gecode::Int::GCC::VarValGraph< View, Card, isView >::sync (  void   )  [inline]
 

Check whether propagation failed This is actually needed to cope with failures occuring in functions returing only a boolean value and not an ExecStatus.

Definition at line 1458 of file graphsup.icc.

template<class View, class Card, bool isView>
void Gecode::Int::GCC::VarValGraph< View, Card, isView >::print_graph (  void   ) 
 

Print graph information for debugging.

Definition at line 2297 of file graphsup.icc.

template<class View, class Card, bool isView>
template<BC direction>
void Gecode::Int::GCC::VarValGraph< View, Card, isView >::print_matching (  void   ) 
 

Print matching information for debugging.

Definition at line 2255 of file graphsup.icc.

template<class View, class Card, bool isView>
void Gecode::Int::GCC::VarValGraph< View, Card, isView >::print_match (  void   ) 
 

Gather matching information.

Definition at line 2214 of file graphsup.icc.

template<class View, class Card, bool isView>
void Gecode::Int::GCC::VarValGraph< View, Card, isView >::print_edges (  void   ) 
 

Print edge information.

Definition at line 2222 of file graphsup.icc.

template<class View, class Card, bool isView>
void * Gecode::Int::GCC::VarValGraph< View, Card, isView >::operator new (  size_t  t  )  [inline]
 

Allocate memory for the graph.

Definition at line 2360 of file graphsup.icc.

template<class View, class Card, bool isView>
void Gecode::Int::GCC::VarValGraph< View, Card, isView >::operator delete (  void *  p  )  [inline]
 

Free the memory for the graph.

Definition at line 2366 of file graphsup.icc.

template<class View, class Card, bool isView>
template<BC direction>
bool Gecode::Int::GCC::VarValGraph< View, Card, isView >::narrow (  Space *   )  [inline]
 

Remove all those edges from the graph that do not belong to any possible maximum matching on the graph.

Definition at line 1679 of file graphsup.icc.

template<class View, class Card, bool isView>
template<BC direction>
bool Gecode::Int::GCC::VarValGraph< View, Card, isView >::maximum_matching (  void   )  [inline]
 

Compute a maximum matching M on the graph.

  • If BC=UBC then $|M|= |X|$
  • If BC=LBC then $|M|= \sum_{i\in \{ 0, \dots, |X|-1\}} k[i].min()$

Definition at line 1820 of file graphsup.icc.

template<class View, class Card, bool isView>
template<BC direction>
void Gecode::Int::GCC::VarValGraph< View, Card, isView >::free_alternating_paths (  void   )  [inline]
 

Compute possible free alternating paths in the graph.

Definition at line 2002 of file graphsup.icc.

template<class View, class Card, bool isView>
template<BC direction>
void Gecode::Int::GCC::VarValGraph< View, Card, isView >::strongly_connected_components (  void   )  [inline]
 

Compute possible strongly connected components of the graph.

Definition at line 2190 of file graphsup.icc.

template<class View, class Card, bool isView>
template<BC direction>
bool Gecode::Int::GCC::VarValGraph< View, Card, isView >::augmenting_path (  VVGNode *   )  [inline]
 

Test whether the current maximal matching on the graph can be augmented by an alternating path starting and ending with a free node.

Definition at line 1893 of file graphsup.icc.

template<class View, class Card, bool isView>
template<BC direction>
void Gecode::Int::GCC::VarValGraph< View, Card, isView >::dfs (  VVGNode *  ,
bool  [],
bool  [],
int  [],
Support::StaticStack< VVGNode * > &  ,
Support::StaticStack< VVGNode * > &  ,
int & 
)  [inline, protected]
 

Perform depth-first search on the graph.

Depth first search used to compute the strongly connected components of the graph.

Definition at line 2112 of file graphsup.icc.

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