> whether something is in the standard or whether it is from a third party is broadly irrelevant. In context where I have to use C++ (programming contests, sch

> whether something is in the standard or whether it is from a third party is broadly irrelevant. In context where I have to use C++ (programming contests, school), I'm not allowed to use external libraries. In contexts where I'm allowed to choose the programming language, I wouldn't use C++ in the first place.