// This code illustrates “diamond” inheritance.
// Jack has two jobs, The Fort Collins Club (FCC) and CSU.
// Both of the derived classes inherit virtually from worker.
// Therefore, Jack has only one social security number (ss_num),
// which is good.  Note that Worker::Worker() only gets called once.

#include <iostream>
using namespace std;

class Worker {
  public:
    Worker() { clog << __PRETTY_FUNCTION__ << '\n'; }
    int ss_num;
};

class CSU_Employee : virtual public Worker {
  public:
    int employee_id;
};

class FCC_Employee : virtual public Worker {
  public:
    int employee_id;
};

class Jack : public CSU_Employee, public FCC_Employee {
  public:
    int number_of_comics;
};

int main() {
    Jack j;
    j.ss_num = 323456789;			// OK
    // Worker *w = &j;
    // CSU_Employee *c = &j;
    // FCC_Employee *f = &j;
}