Uno/Cpp/Snippet/Object Lifecycle

using namespace ::com::sun::star::uno;

{
    // refcount of pSimpleUnoObject is zero
    OWeakObject *pSimpleUnoObject = new ::cppu::OWeakObject();

    // ctor calls acquire, increases refcount
    Reference< XInterface > reference( (XInterface *) pSimpleUnoObject );

    // destructor of reference calls release, refcount drops to zero,
    // release does a delete this, the object is destroyed;
}

cppu::OWeakObject is a very simple uno-object, that is often used as a base class for other UNO-objects, as explained below. Here it is only important to know, that it correctly implements com.sun.star.uno.XInterface. The above code has no resource leak, it is perfectly OK (though certainly not very useful).