c++ - Can a class with all private members be a POD class?

I've heard before that POD types cannot have private data -- but according to the C++0x draft I have the requirement is looser (emphasis mine):

has the same access control (Clause 11) for all non-static data members

which seems to suggest that private data is okay so long as it's all private. I don't have a copy of C++03 though to check...

Would then, WindowsApi::Uuid be a POD class?

namespace WindowsApi
{

    class Uuid
    {
        union
        {
            ::UUID asUuid; //Win32's UUID struct
            unsigned __int64 asInt64s[2];
            unsigned __int32 asInt32s[4];
        };
    public:
        Uuid() {}

        Uuid(::UUID sourceStructure) : asUuid(sourceStructure) {}
        operator ::UUID() { return asUuid; }
    };
}

Answer

C++03 still does not allow non-static private or protected data in POD classes. This requirement is specified in the definition of aggregate

An aggregate is an array or a class (clause 9) with no user-declared constructors (12.1), no private or protected non-static data members (clause 11), no base classes (clause 10), and no virtual functions (10.3).

and POD class must be an aggregate first.