Re: [Boost-users] iterator_adapter/iterator_tag/std::distance bug

Martin Wartens wrote:

I used boost::iterator_adapter with a std::vector iterator, all parameters set to boost::use_default. (So this is the same as a plain std::vector iterator) With this configuration, the iterator tag is recognized as "input_iterator_tag" not "random_iterator_tag" as it must be.

If `is_reference::type>::value` is `false`, this is not a bug. Boost.Iterator relegates it to InputIterator, because such iterator cannot conform to ForwardIterator by the standard definition (at least in C++03). Regards, -- Shunsuke Sogame