[Boost-users] dumb question: iterator dynamic_cast adapter?

From: Paul Elliott (pelliott_at_[hidden])
Date: 2004-03-22 13:52:33

I am trying to figure out iterators and I have a dumb question:
I have an iterator A_iter, that can traverse in both directions
( A_iter++ and A_iter-- ) and can do input (operator*()).
Value_type = type of *A_iter is A;

and A is static_cast able to B:

A start;
B fish = static_cast<B>(start);  // OK

How do I use adapters to create B_iter, which is the same as A_iter,
but whose value_type= typeof *B_iter is B?

I am sorry if this is a dumb question.

-- 
Paul Elliott                       1(512)837-1096
pelliott_at_[hidden]                    PMB 181, 11900 Metric Blvd Suite J
http://www.io.com/~pelliott/pme/   Austin TX 78758-3117