*Autor: Wojciech Domski*

*Markdown flavoured text. Use any Markdown editor to get preview.*

# Przykład shared_ptr i listy.

```
#include <iostream>
#include <memory>
#include <list>
using namespace std;

class Owoc{
        static int liczba;
public:
        Owoc( int pestki_ = 20) : pestki(pestki_){
                ++liczba;
                id = liczba;
                cout << "Konstruktor, " << id << endl;
        }

        ~Owoc(){
                cout << "Destruktor, " << id << endl;
        }


        int pestki;
        int id;
};

int Owoc::liczba = 0;

void foo(shared_ptr<Owoc> p){
        cout << "foo, " << p->pestki << endl;
}

void foo2(Owoc * p){
        cout << "foo2, " << p->pestki << endl;
}

int main()
{
        shared_ptr<Owoc> o;
        list<shared_ptr<Owoc> > lo;

        o = make_shared<Owoc> ();

        o->pestki = 10;

        foo(o);
        foo2(o.get());

        o.reset(new Owoc);

        o->pestki = 20;

        foo(o);
        foo2(o.get());

        for( int i = 1; i < 7; ++i)
                lo.push_back(make_shared<Owoc> (i * 11111));

        for( list<shared_ptr<Owoc> >::iterator it = lo.begin(); it != lo.end(); ++it)
                cout << "ID, " << (**it).id << ", Pestki, " << (*it)->pestki << endl;

        if(lo.size() > 0)
                lo.pop_back();
			
		lo.push_back(make_shared<Owoc> (88888));
 
        return 0;
}
```