All in the title. I haven&#39;t used them much, but I saw Map or Vector types were forcing the user to use qualified functions unless you want nameclash with the more basic, typically list-oriented functions.<br>So, why not have a massive, general purpose interface so the type only can separate between containers --which would allow for cross-container polymorphism, i suppose, more easily, even though it&#39;s not necessarily the most widespread need.<br>So, do i miss something? Is there in fact a class of that kind? If so why not?<br>Thanks in advance! :)