https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65446
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> ---
(In reply to Tobias Burnus from comment #0)
> It doesn't warn but should warn for
> printf("%u\n", _short);
Actually, it (correctly) does warn in this case (as short it promoted to int,
which is also unsigned).
