静态向量成员变量

Question

So I have a class with a static vector member:

class Foo {
// some private members
public:
static vector<Bar> MyVector;
};

Now I initialize MyVector before actually using it:

std::vector<Bar> Foo::MyVector;

Then I want to define a variable like this in main(), but it doesn't seem to work:

Foo::MyVector::size_type t; 

This workaround does work, but doesn't look beautiful (to my eyes):

vector<Bar>::size_type t;

What is the basic concept that I have been missing here?

EDIT

The main point is, should I always come back to see declaration of MyVector as vector< Bar> before proceeding to declaring a size_type for it?

Answer 1

It is not workaround. MyVector is object. vector<Bar> is type. size_type is typedef in vector class, not member variable.

Answer 2

size_type is a type declared in std::vector . It is bound to the class, not individual instances. Additionally, the :: operator is only used with namespaces and classes. You cannot use it with variables.