The ctor is explicit so there should not be an assignment operator op=.
Changing the assignment to = Qt::totally_ordered_wrapper(ptr) is also
possible but if ptr is nullptr, I have to forward declare a pointer as
follow "T *n = nullptr" and then call Qt::totally_ordered_wrapper(n).
So I think adding reset(P) function is better.
Found in API Review.
Change-Id: I0acfcacc97a43f3cf8bfa65b2b16a65cae95b727
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
(cherry picked from commit dc49d84abc35dfbbc4028a5f86017786cff13ae7)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>