Binary scope resolution in C++

Lesson 4	The scope resolution operator and Binary form
Objective	Binary form of the scope resolution operator.

The scope resolution operator's binary form is used to clarify names that are reused within classes.

class widgets { public: void f(); };
class gizmos  { public: void f(); };

void f() { ..... }          //ordinary external f
void widgets::f() { ..... } //f scoped to widgets
void gizmos::f() { ..... }  //f scoped to gizmos

Accessing Namespace Members Directly
Simply use the binary scope resolution operator with the namespace name on the left and the member on the right.

namespace A {
	intx = 1;
	structADT {
		enumColor { RED, WHITE, BLUE };
	};
}

namespace B {
	intx = 2;
	structADT {
		enumColor { GREEN, YELLOW };
	};
}