Hi Paul,
On Fri, Aug 23, 2024 at 12:14:40PM GMT, Paul Eggert wrote:
> On 2024-08-23 11:17, Alejandro Colomar wrote:
>
> > in systems where time_t is unsigned, does a mktime(3)
> > call with a time representing a time before Epoch result in an error,
>
> Yes, just like any out-of-range mktime would.
Thanks! (I thought it might wrap around for things that fit the signed
counterpart.)
> > Does any existing system (or historic one) use an unsigned time_t
>
> Yes.
Hmmm, I guess we can do
if (is_signed(time_t))
printf("%jd\n", (intmax_t) t);
else
printf("%ju\n", (uintmax_t) t);
strftime("%s") would be interesting, but it accepts a struct tm, not a
time_t, so I can't pass that value directly from mktime(3) to
strftime(3).
Have a lovely night!
Alex
--
<https://www.alejandro-colomar.es/>
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