// PersonVector Project, File main2.cpp.

// Show how to use the STL vector datatype
// to store Person objects.

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <algorithm>
#include "..\\person.h"
using namespace std;

void print(Person);
bool compare(Person, Person);

int main()
{
    // Temporary Person object for input.
    Person p;

    // STL vector datatype.
    vector<Person> x;
    vector<Person>::iterator y;

    // Declare and open input file object.
    ifstream fin("c:\\persons.txt");

    // Read data from file and append
    // to back end of vector.  Note that
    // >> is the overloaded input high level 
    // function.
    while(fin >> p)
        x.push_back(p);

    // Sort using high level sort function.
    sort(x.begin(), x.end(), compare);

    // Print using for_each construction.
    for_each(x.begin(), x.end(), print);

    // Print by accessing each object individually.
    for(int i = 0; i < x.size(); i++)
        cout << x[i].get_name() << " ";
    cout << endl;

    // Print using an iterator.
    for(y = x.begin(); y != x.end(); y++)
        cout << (*y).get_name() <<  " ";
    cout << endl;

    return EXIT_SUCCESS;
}

void print(Person p)
{
    p.display();
}

bool compare(Person p, Person q)
{
    return p.get_age() < q.get_age();
}