#include <string>
#include <iostream>
#include <fstream>

struct person
{ string fname, lname;    // object's variables are MEMBERS.
  int ssn, bd;
                          // object's functions are called METHODS
  void print()
  { cout << fname << " " << lname << ", SSN=" << ssn
         << ", born " << bd << "\n"; }
};

person * read_data()
{ ifstream in("/home/www/class/een118/labs/database1.txt");
  if (in.fail())
  { cerr << "No file\n";
    exit(1); }
  person * array = new person[1010];
                // 1010 person objects were just created. The default
                // constructor was called 1010 times.
  int num = 0;
  while (num < 1010)
  { int a, b;
    string c, d;
    in >> a >> c >> d >> b;   // The file contains ssn fname lname bd
    if (in.fail())
      break; 
    array[num].fname = c;
    array[num].lname = d;
    array[num].ssn = a;
    array[num].bd = b;
    num += 1; }
  in.close();
  return array; }

person find_oldest(person * data, int size)
{ int oldest = data[0].bd, oldestpos = 0;
  for (int i=1; i<size; i+=1)
    if (data[i].bd < oldest)
    { oldest = data[i].bd;
      oldestpos = i; }
  return data[oldestpos]; }

void main()
{ person * data = read_data();
  person x = find_oldest(data, 1000);
  x.print();
  cout << "Change his name...\n";
  x.fname = "Old Man";
  x.print(); }