Eric Niebler <eric <at> boost-consulting.com> writes:
Thorsten Ottosen wrote:
Eric Niebler <eric <at> boost-consulting.com> writes:
Is it documented anywhere, and I'm just not seeing it?
I think the best documentation was provided by you in your for-each docs. If you don't mind, I would love to steal that some day
In a perfect world, that would have been part of the range docs from the beginning.
Don't. As I'm learning from this thread and from the foreach regression tests, the recommendations in the foreach docs for extending Boost.Range are wrong. I'm deeply confused. Please enlighten me as to the proper way to extend your library.
way 1: (a) provide member functions - begin() - end() - size() (b) provide member types - iterator - const_iterator - value_type - size_type - difference_type way 2: (lacking from docs) (a) provide free-standing member in namespace of the UDT: - begin() - end() - size() (b) provide specializations for - boost::range_itetator - boost::range_const_iterator - boost::range_value - boost::range_difference - boost::range_size A library might choose not to call boost::begin/end/size unqualified...in which case that library does not support UDTs. Does it make sense? Have I forgotten something? br -Thorsten