On Mon, Mar 24, 2014 at 11:03:42PM +0100, René Scharfe wrote: > >If the result is all-zeroes, can we check for that case instead? I > >suppose that will eventually create a "trap" at midnight on January 1st > >of the year 0 (though I am not sure such a date is even meaningful, > >given the history of our calendars). > > Makes sense. That would be "Sun Jan 0 00:00:00 1900", however -- days are > 1-based and years 1900-based in struct tm. Oh right, I was stupidly forgetting about being 1900-based. > Since a zeroth day is invalid, would this suffice: > > if (!tm || !tm->tm_mday) { > > (Yes, I'm lazy. :) That looks perfect (and I like that it is quick to check, too, since this case should be extremely rare). -Peff -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html