Question

If the following is a valid statement:

w->x->y->z = 12;

      then

C) w, x and y are pointer variables.

B) x, y and z are structure components.

A) x, y and z are structure variables.A. x, y and z are structure variables.

D) A and B statements are correct.

E) B and C statements are correct.

can someone explain this to me?

C++ structures

Answer 1

Correct answer is C. i.e., w,x and y are pointer variables.

The pointer variables may be used to access any struct member.Nested structure would have been there which would finally point to z. So using w,x and y pointer variables, z is being accessed.

Instead of dot notation(.), -> is used since it provides faster access compared to dot(.)