### Example of Access for Classes and Structures

    /************************************************************************
    *

In the following example, main() has access to the members of X even though X is declared as using the keyword class:

                                                                            *
    ************************************************************************/

    // This example declares a structure, then declares a class
    // that is an object of the structure.

    #include <iostream.h>

    struct x {
          int a;
          int b;
          } ;

    class x X;

    void main() {
          X.a = 0;
          X.b = 1;
          cout << "Here are e and f " << X.a << " " << X.b << endl;
          }