class NonCopyable {
public:
    virtual ~NonCopyable () {}

    NonCopyable (const NonCopyable & rhv) {} = delete;
    NonCopyable & operator=(const NonCopyable & rhv) = delete;

    NonCopyable (const NonCopyable && rhv) {} = default;
    NonCopyable & operator=(const NonCopyable && rhv) = default;
private:
    NonCopyable () {}
};

class NonMovable {
public:
    virtual ~NonMovable () {}

    NonMovable (const NonMovable & rhv) {} = default;
    NonMovable & operator=(const NonMovable & rhv) = default;

    NonMovable (const NonMovable && rhv) {} = delete;
    NonMovable & operator=(const NonMovable && rhv) = delete;
private:
    NonMovable () {}
};

class One : public NonCopyable {};
class Two : public NonMovable {};
class Three : public NonMovable, public NonCopyable {};