[boost] <ptr>_*_cast<>

From: David B. Held (dheld_at_[hidden])
Date: 2002-10-08 13:44:43

Should these be in their own file, perhaps?  I'd like to use the
detail::*_cast_tags without creating my own and without having a
dependency on shared_ptr<>.  Also, it seems that there is a type of
Smart Pointer Concept that involves things like element_type,
get_pointer(), casting, etc., that smart pointers should, in general
conform to.  Would it be useful to spell this out explicitly?

Dave