--- In Boost-Users@y..., Duane Murphy wrote:

I have now built a couple of iterators using boost::iterator_adaptor. These are not adapted iterators but rather iterators developed to iterate over interfaces that have not iterators.

I havent found a good example of how to declare the equivalent of a const_iterator like in vector. What would the declartion look like?

If the definition of an iterator is:

typedef boost::iterator_adaptor< Base, Policy > iterator;

What would the declartion for a const_iterator look like?

depending on your compiler and requirements, it might look like: boost::iterator_adaptor const_iterator; The library is full of iterator pair generators which generate a const/mutable iterator pair. You could look at those for examples. This paper http://www.boost.org/libs/utility/iterator_adaptors.pdf is also helpful in understanding how a constant iterator should be declared. -Dave