[Boost-users] Re: iterator_adaptor problem (mpl?)

David Abrahams wrote:

Why struggle?

boost::transform_iterator should give you just what you need:

Many thanks, David. That's altogether much nicer. However, result_of is not part of boost 1.31. Attached is an implementation of my code that works fine with 1.31. Unfortunately, I can't create a 'const_first_iterator' from a 'first_iterator'. Ie, I need: store my_store; store const & my_const_store = my_store; // UGLY! store::const_first_iterator const begin = my_const_store.begin_first(); store::const_first_iterator const end = my_const_store.end_first(); Any further clues, or is this as far as I can go this way? Angus