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spot::tgba_succ_iterator_product Class Reference

Iterate over the successors of a product computed on the fly. More...

#include <tgbaproduct.hh>

Inheritance diagram for spot::tgba_succ_iterator_product:

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Collaboration diagram for spot::tgba_succ_iterator_product:

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List of all members.

Public Member Functions

 tgba_succ_iterator_product (tgba_succ_iterator *left, tgba_succ_iterator *right, bdd left_neg, bdd right_neg)
virtual ~tgba_succ_iterator_product ()
void first ()
 Position the iterator on the first successor (if any).

void next ()
 Jump to the next successor (if any).

bool done () const
 Check whether the iteration is finished.

state_productcurrent_state () const
 Get the state of the current successor.

bdd current_condition () const
 Get the condition on the transition leading to this successor.

bdd current_acceptance_conditions () const
 Get the acceptance conditions on the transition leading to this successor.


Protected Attributes

tgba_succ_iteratorleft_
tgba_succ_iteratorright_
bdd current_cond_
bdd left_neg_
bdd right_neg_

Private Member Functions

void step_ ()
 Internal routines to advance to the next successor.

void next_non_false_ ()

Detailed Description

Iterate over the successors of a product computed on the fly.


Constructor & Destructor Documentation

spot::tgba_succ_iterator_product::tgba_succ_iterator_product tgba_succ_iterator left,
tgba_succ_iterator right,
bdd  left_neg,
bdd  right_neg
 

virtual spot::tgba_succ_iterator_product::~tgba_succ_iterator_product  )  [virtual]
 


Member Function Documentation

bdd spot::tgba_succ_iterator_product::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_product::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_product* spot::tgba_succ_iterator_product::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.

Implements spot::tgba_succ_iterator.

bool spot::tgba_succ_iterator_product::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_product::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_product::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.

void spot::tgba_succ_iterator_product::next_non_false_  )  [private]
 

void spot::tgba_succ_iterator_product::step_  )  [private]
 

Internal routines to advance to the next successor.


Member Data Documentation

bdd spot::tgba_succ_iterator_product::current_cond_ [protected]
 

tgba_succ_iterator* spot::tgba_succ_iterator_product::left_ [protected]
 

bdd spot::tgba_succ_iterator_product::left_neg_ [protected]
 

tgba_succ_iterator* spot::tgba_succ_iterator_product::right_ [protected]
 

bdd spot::tgba_succ_iterator_product::right_neg_ [protected]
 


The documentation for this class was generated from the following file:
Generated on Mon Mar 8 23:32:15 2004 for spot by doxygen 1.3.5