#include <string>
#include <iostream>
using namespace std;

class Person {
protected:
	string name;
	int age;
	
public:
	/**
	 * default constructor with no argument
	 */
	Person() {
		name = "";
		age = 0;
	}
	
	/**
	 * constructor with name
	 * @param n name of the person
	 */
	Person(string n) {
		name = n;
		age = 0;
	}
	
	/**
	 * constructor with name and age
	 * @param n name of the person
	 * @param a age of the person
	 */
	Person(string n, int a) {
		name = n;
		age = a;
	}
	
	/**
	 * print class contents
	 * @param output stream reference
	 * @return output stream reference
	 */
	ostream& print(ostream& out) {
		out << name << ", " << age;
		return out;
	}
	
	friend ostream& operator<<(ostream& out, Person& p) {
		return p.print(out);
	}
};

// ====================================
// main function
// ====================================
int main() {
	// call of Person()
	// Note: don't use Person p1(); remove parenthesis
	Person p1; 

	// call of Person(string n)
	Person p2("toto"); 

	// call of Person(string n, int a) 
	Person p3("toto", 10); 

	// define array of Persons
	Person *tab;

	// create an array of Persons, call default constructor
	tab = new Person[10];
	
	// call  constructor Person(string n, int a) -std=c++11
	tab = new Person[10] { Person("toto", 10) };

	for (int i=0; i<10; ++i) {
		cout << tab[i] << endl;
	}

	return 0;
}