[mabster]

Every work place I've worked at has their own container classes for performance reasons.

We did use some C++ standard library but very sparingly. For example, std::unique_ptr<> was fine, but std::shared_ptr<> was not because of the way it implicitly stores it's reference, so we had our own implementation that exposed the reference.

When I was doing console games this was a must. You would often have restrictions where the container itself should live in a different area of memory to the items which is much easier to manage with your own classes.