Scope resolution operator on enums a compiler-specific extension?

Question

On this question, there\'s an answer that states:

You can use typedef to make Colour enumeration type accessible without specifying it\'s \"full name\

Answer 1

That is not standard.

In C++11, you will be able to make scoped enums with an enum class declaration.

With pre-C++11 compilers, to scope an enum, you will need to define the enum inside a struct or namespace.