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spot::kripke_succ_iterator Class Referenceabstract

Iterator code for Kripke structure. More...

#include <kripke/kripke.hh>

Inheritance diagram for spot::kripke_succ_iterator:
Inheritance graph
Collaboration diagram for spot::kripke_succ_iterator:
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Public Member Functions

 kripke_succ_iterator (const bdd &cond)
 Constructor. More...
 
virtual bdd current_condition () const
 Get the condition on the transition leading to this successor. More...
 
virtual bdd current_acceptance_conditions () const
 Get the acceptance conditions on the transition leading to this successor. More...
 
Iteration
virtual void first ()=0
 Position the iterator on the first successor (if any). More...
 
virtual void next ()=0
 Jump to the next successor (if any). More...
 
virtual bool done () const =0
 Check whether the iteration is finished. More...
 
Inspection
virtual statecurrent_state () const =0
 Get the state of the current successor. More...
 

Protected Attributes

bdd cond_
 

Detailed Description

Iterator code for Kripke structure.

This iterator can be used to simplify the writing of an iterator on a Kripke structure (or lookalike).

If you inherit from this iterator, you should only redefine

This class implements kripke_succ_iterator::current_condition(), and kripke_succ_iterator::current_acceptance_conditions().

Constructor & Destructor Documentation

spot::kripke_succ_iterator::kripke_succ_iterator ( const bdd &  cond)

Constructor.

The cond argument will be the one returned by kripke_succ_iterator::current_condition().

Member Function Documentation

virtual bdd spot::kripke_succ_iterator::current_acceptance_conditions ( ) const
virtual

Get the acceptance conditions on the transition leading to this successor.

Implements spot::tgba_succ_iterator.

virtual bdd spot::kripke_succ_iterator::current_condition ( ) const
virtual

Get the condition on the transition leading to this successor.

This is a boolean function of atomic propositions.

Implements spot::tgba_succ_iterator.

virtual state* spot::tgba_succ_iterator::current_state ( ) const
pure virtualinherited

Get the state of the current successor.

Note that the same state may occur at different points in the iteration. These actually correspond to the same destination. It just means there were several transitions, with different conditions, leading to the same state.

The returned state should be destroyed (see state::destroy) by the caller after it is no longer used.

Implemented in spot::ta_explicit_succ_iterator, spot::tgba_explicit_succ_iterator< State >, spot::ta_succ_iterator, spot::taa_succ_iterator, spot::kripke_explicit_succ_iterator, spot::ta_succ_iterator_product, spot::tgba_succ_iterator_union, spot::tgta_succ_iterator_product, and spot::tgba_succ_iterator_concrete.

virtual bool spot::tgba_succ_iterator::done ( ) const
pure virtualinherited

Check whether the iteration is finished.

This function should be called after any call to first() or next() and before any enquiry about the current state.

The usual way to do this is with a for loop.

for (s->first(); !s->done(); s->next())
  ...  

Implemented in spot::ta_explicit_succ_iterator, spot::tgba_explicit_succ_iterator< State >, spot::ta_succ_iterator, spot::taa_succ_iterator, spot::kripke_explicit_succ_iterator, spot::tgba_succ_iterator_union, spot::ta_succ_iterator_product, spot::tgta_succ_iterator_product, and spot::tgba_succ_iterator_concrete.

virtual void spot::tgba_succ_iterator::first ( )
pure virtualinherited

Position the iterator on the first successor (if any).

This method can be called several times to make multiple passes over successors.

Warning
One should always call done() to ensure there is a successor, even after first(). A common trap is to assume that there is at least one successor: this is wrong.

Implemented in spot::ta_explicit_succ_iterator, spot::tgba_explicit_succ_iterator< State >, spot::ta_succ_iterator, spot::taa_succ_iterator, spot::kripke_explicit_succ_iterator, spot::tgba_succ_iterator_union, spot::ta_succ_iterator_product, spot::tgta_succ_iterator_product, and spot::tgba_succ_iterator_concrete.

virtual void spot::tgba_succ_iterator::next ( )
pure virtualinherited

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

Please direct any question, comment, or bug report to the Spot mailing list at spot@lrde.epita.fr.
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