https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119011
--- Comment #15 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> ---
(In reply to Vincent Lefèvre from comment #14)
> (In reply to Jakub Jelinek from comment #4)
> > If you want to compare against all ones time_t, just use ~(time_t)0 or
> > similar.
>
> This one is a bad idea as it may have issues with signed types (when not in
> two's completed) but *also* on unsigned integer types of rank less than int.
^^^^^^^^^ complement
> If you know the name of the type, say time_t, then just compare to
> (time_t)-1.
Note: The context was that the name of the type was used in Jakub's proposal.
I'm saying that this is an easy case to deal with correctly.
