Fun with C++11 smart ptr

main.cpp

#include <iostream>
#include <memory>
#include <vector>

using namespace std;

class Stuff
{
    int val;
public:
    Stuff(int v):val(v){cout << "Stuff created : " << this << endl;}
    ~Stuff()
    {
        cout << "Stuff deleted : " << this << endl;
    }

    friend ostream& operator<<(ostream& os, const Stuff& s)
    {
        os << "Show :" << &s;
        return os;
    }
};

void shared_play()
{
    auto www = make_shared<Stuff>(42);
    shared_ptr<Stuff> mmm = www;
    vector<decltype(www)> vec(3);

    cout << "WWW  " << www << endl;
    cout << "MMM  " << mmm << endl;


    vec[0] = www;

    www = nullptr;
    mmm = nullptr;

    vec.clear();
}

void unique_play()
{
    unique_ptr<Stuff> www(new Stuff(42));
    unique_ptr<Stuff> mmm(std::move(www));
    vector<decltype(www)> vec(3);

    //vec[0] = std::move(mmm);

    mmm = nullptr;

    cout << "WWW " << &(*www) << endl;
    cout << "MMM " << &(*mmm) << endl;
}

int main()
{
    //shared_play();
    unique_play();

    cout << "--- END ---" << endl;
    return 0;
}