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spot::tgba_succ_iterator_union Class Reference

Iterate over the successors of an union computed on the fly. More...

#include <tgba/tgbaunion.hh>

Inheritance diagram for spot::tgba_succ_iterator_union:
Inheritance graph
Collaboration diagram for spot::tgba_succ_iterator_union:
Collaboration graph

Public Member Functions

 tgba_succ_iterator_union (tgba_succ_iterator *left, tgba_succ_iterator *right, bdd left_missing, bdd right_missing, bdd left_var, bdd right_var)
 
void first ()
 Position the iterator on the first successor (if any). More...
 
void next ()
 Jump to the next successor (if any). More...
 
bool done () const
 Check whether the iteration is finished. More...
 
state_unioncurrent_state () const
 Get the state of the current successor. More...
 
bdd current_condition () const
 Get the condition on the transition leading to this successor. More...
 
bdd current_acceptance_conditions () const
 Get the acceptance conditions on the transition leading to this successor. More...
 

Protected Attributes

tgba_succ_iteratorleft_
 
tgba_succ_iteratorright_
 
bdd current_cond_
 
bdd left_missing_
 
bdd right_missing_
 
bdd left_neg_
 
bdd right_neg_
 

Friends

class tgba_union
 

Detailed Description

Iterate over the successors of an union computed on the fly.

Member Function Documentation

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

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

Implements spot::tgba_succ_iterator.

bdd spot::tgba_succ_iterator_union::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.

state_union* spot::tgba_succ_iterator_union::current_state ( ) const
virtual

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.

Implements spot::tgba_succ_iterator.

bool spot::tgba_succ_iterator_union::done ( ) const
virtual

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())
  ...  

Implements spot::tgba_succ_iterator.

void spot::tgba_succ_iterator_union::first ( )
virtual

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.

Implements spot::tgba_succ_iterator.

void spot::tgba_succ_iterator_union::next ( )
virtual

Jump to the next successor (if any).

Warning
Again, one should always call done() to ensure there is a successor.

Implements spot::tgba_succ_iterator.


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.
Generated on Sat Dec 6 2014 12:28:44 for spot by doxygen 1.8.4