class unique
{
	T* ptr;
public:
	unique(T* ptr = nullptr)
		:ptr(ptr)
	{
		if(ptr) std::cout << "Tworzenie obiektu unique" << std::endl;
	}

	unique(unique&& u)
	{
		ptr = u.ptr;
		u.ptr = nullptr;
	}

	unique(const unique& u) = delete;

	~unique()
	{
		if (!ptr) return;
		std::cout << "Zwalnianie pamieci" << std::endl;
		delete ptr;
	}

	unique& operator=(unique&& u)
	{
		std::swap(ptr, u.ptr);
		return *this;
	}

	unique& operator=(const unique& u) = delete;