#include <iostream>
#include <string>
#include <vector>

class student
{
public:
	student();                                       //default constructor
	student(const std::string& name, const int age); //copy constructor
	student(const student& rhs);                     //surcharge constructor
	~student();                                      //destructor

	void        setName(const std::string& name);
	std::string getName() const;
	void        setAge(const int age);
	int         getAge() const;

	student& operator=(const student& rhs);

private:
	std::string pName; //instance of std::string class
	int         pAge;	
};

student::student(): pName("New student"), pAge(20)
{}

student::student(const std::string& name, const int age): pName(name), pAge(age)
{}

student::student(const student& rhs): pName(rhs.getName()), pAge(rhs.getAge())
{}

student::~student()
{}

void student::setName(const std::string& name)
{
	pName = name;
}

std::string student::getName() const
{
	return pName;
}

void student::setAge(int age)
{
	pAge = age;
}

int student::getAge() const
{
	return pAge;
}

student& student::operator=(const student& rhs)
{
	pName = rhs.getName();
	pAge = rhs.getAge();

	return *this;
}

std::ostream& operator<<(std::ostream& os, const student& rhs)
{
	os << rhs.getName() << " has " << rhs.getAge() << " years old.";
	
	return os;
}

//display vector properties
template<class T> void display_vector(const std::vector<T>& v);

typedef std::vector<student> classRoom;

int main()
{
	student Jean;
	student Michel("Michel", 15);
	student Martine("Martine", 20);
	student Pierre("Pierre", 18);

	classRoom emptyClassRoom;
	
	std::cout << "emptyClassRoom:" << std::endl;
	display_vector(emptyClassRoom);

	classRoom increasedClassRoom(3);
	
	std::cout << "increasedClassRoom(3):" << std::endl;
	display_vector(emptyClassRoom);

	increasedClassRoom[0] = Jean;
	increasedClassRoom[1] = Martine;
	increasedClassRoom[2] = Pierre;
	
	std::cout << "increasedClassRoom(3):" << std::endl;
	display_vector(emptyClassRoom);

	increasedClassRoom.push_back(Pierre);

	std::cout << "increasedClassRoom() after append of 4th student:" << std::endl;
	display_vector(emptyClassRoom);

	std::cout << "increasedClassRoom() after setName / setAge:" << std::endl;
	display_vector(emptyClassRoom);

	increasedClassRoom[0].setName("Jean");
	increasedClassRoom[0].setAge(18);

	system("pause");

	return 0;
}

template<class T> void display_vector(const std::vector<T>& v)
{
	std::cout << "max_size() = " << v.max_size() << "\tsize() = " << v.size() << "\tcapacity() = " << v.capacity << "\t" << (v.empty()? "empty": "not empty") << std::endl;

	for (unsigned int i = 0; i < v.size(); i++)
		std::cout << v[i] << std::endl;

	std::cout << std::endl;
}