Contiguous iterator detection

Original answer The rationale is given in N4284, which is the adopted version of the contiguous iterators proposal: This paper introduces the term “contiguous iterator” as a refinement of random-access iterator, without introducing a corresponding contiguous_iterator_tag, which was found to break code during the Issaquah discussions of Nevin Liber’s paper N3884 “Contiguous Iterators: A Refinement … Read more