consider the following code class a typedef int i private member..., Programming with CPP, General Programming

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Question:Consider the following code:class A {
              typedef int I;      // private member
              I f();
              friend I g(I);
              static I x;
          };
Which of the following are valid:

A A::I A::f() { return 0; } 
B A::I g(A::I p = A::x); 
C A::I g(A::I p) { return 0; } 
D A::I A::x = 0;

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Question:Consider the following code:class A { typedef int I; // private member I f(); friend I g(I); static I x; }; Which of the following are valid:

A A::I A::f() { return 0; }

B A::I g(A::I p = A::x);

C A::I g(A::I p) { return 0; }

D A::I A::x = 0;

A

Question:Consider the following code:
class A { typedef int I; // private member I f(); friend I g(I); static I x; };
Which of the following are valid: