struct QObject;

struct QObjectPrivate
{
    virtual ~QObjectPrivate();

    QObject *q;
    void *data[14];
};

struct QObject
{
    virtual ~QObject();

private:
    // non-copyable
    QObject(const QObject &);
    QObject &operator=(const QObject &);

    QObjectPrivate *d;
};

struct Object
    : QObject
{
    // ...
};

void foo()
{
    Object *obj = new Object;
    // ...
    // obj eventually gets deleted.
}