C++0x "standard layout"

Question

According to wikipedia a requirement for "standard-layout" is:

• Has the same access control (public, private, protected) for all non-static members

Does not that preclude objects with public methods and private data from ever being standard-layout? What is the rationale for such a draconian rule?

Answer 1

Does not that preclude objects with public methods and private data from ever being standard-layout?

No, the Wikipedia article has had the wrong wording. Only different access control for data members is mentioned in §9/6 of the FCD, which treats standard-layout:

A standard-layout class is a class that:
[...]
— has the same access control (Clause 11) for all non-static data members,