https://cppcon.org/ https://github.com/CppCon/CppCon2020/blob/main/Presentations/making_iterators_views_and_containers_easier_to_write_with_booststlinterfaces/making_iterators_views_and_containers_easier_to_write_with_booststlinterfaces__zach_laine__cppcon_2020.pdf

Writing standard-compliant iterators is surprisingly easy to get wrong. Standard containers are tedious to write, because they have such large interfaces, involving lots of similar operations. For many years, Boost.Iterator’s …