#include <memory>
#include <iostream>
#include <fstream>

using namespace std;

struct Move
{
    Move()
    {}
    Move(Move &&tmp)
    {}
    ~Move()
    {}
};

//using up = unique_ptr<int>;

int main()
{
    unique_ptr<ifstream> ip{ new ifstream{ "hi" } };
    unique_ptr<ifstream> ip2{ move(ip) };

    unique_ptr<Move> ip3{ new Move };
    unique_ptr<Move> ip4{ move(ip3) };
}