// derived_data_types_ex1.cpp

/* Purpose: To demonstrate use of derived data types
            passing the instance to a function
            by address which is more efficient, but
            can be dangerous if you don't want values
            changed back in previous functions (like main)...

*/
#include<iostream>
using namespace std;

#include "derived_data_types_ex4.h"         // include header file

main() {

  struct Student murray = { 3457, {'A','B','A','C','B'}};
  sort(&murray);   // notice memory address is passed up...
  display(murray);

} // End of main() program

void sort(struct Student* murph) {

 int temp, i, j;

   for(i=0; i<SIZE; i++) {
      for(j=i+1; j<SIZE; j++) {
	 if((*murph).grades[i] > (*murph).grades[j]) {
	    temp = (*murph).grades[i];     /* swap (need to use temp storage) */
	    (*murph).grades[i] = (*murph).grades[j];
	    (*murph).grades[j] =  temp;
	 }
      }
   }

} // End of replace() function

void display(struct Student murph){

  int i;

  cout << endl << "Here are contents of the instance (called \"murray\") of" << endl;
  cout << "the object (named \"Student\"):" << endl << endl;
  cout << "Student number: " << murph.no << endl;
  cout << "Grades: " ;
  for (i = 0; i <= 5; i++)
     cout << murph.grades[i] << " ";
  cout << endl << endl;


} // End of display() function