// File: main8.C
//
// Testing the Person class

#include <iostream.h>
#include <iomanip.h>
#include "person2.h"

void SortByAge(Person **, int) ;

void SortByAge(Person **A, int n) {
int i, j, min, mindex ;
Person* temp ;

   for(i = 0 ; i < n - 1 ; i++) {
      min = A[i]->age ;
      mindex = i ;
      
      for( j = i + 1; j < n ; j++) {
         if (A[j]->age < min) {
            min = A[j]->age ;
            mindex = j ;
         }
      }
      
      temp = A[i] ;
      A[i] = A[mindex] ;
      A[mindex] = temp ;
   }
}


int main() {
   int i ;

   Person **B = new Person * [5] ;
   
   B[0] = new Student("John Smith", 30, 1, 3.2) ;
   B[1] = new Student("Jane Doe", 27, 2, 3.4) ;
   B[2] = new Student("Groucho Marx", 40, 4, 2.1) ;
   B[3] = new Student("Tiny Tim", 6, 0, 3.0) ;
   B[4] = new Student("Bugs Bunny", 36, 0, 1.2) ;
   
   cout << "\nSorting Students as Persons:" << endl ;
   SortByAge(B, 5) ;
   
  for (i=0 ; i < 5 ; i++) {
      B[i]->id() ;
   }

   delete B[1] ;
   delete B[3] ;
   B[1] = new Faculty("Dr. Foo", 45, 17) ;
   B[3] = new Faculty("Dr. No", 37, 12) ;

   cout << "\nSorting Students & Faculty as Persons:" << endl ;
   SortByAge(B, 5) ;


  for (i=0 ; i < 5 ; i++) {
      B[i]->id() ;
   }
}