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From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>,
	Andreas Schwab <schwab@linux-m68k.org>,
	Git Mailing List <git@vger.kernel.org>
Subject: Re: [ANNOUNCE] Git v2.9.1
Date: Tue, 12 Jul 2016 12:09:21 -0400	[thread overview]
Message-ID: <20160712160921.GA2965@sigill.intra.peff.net> (raw)
In-Reply-To: <xmqqlh167tjd.fsf@gitster.mtv.corp.google.com>

On Tue, Jul 12, 2016 at 08:41:42AM -0700, Junio C Hamano wrote:

> Jeff King <peff@peff.net> writes:
> 
> > I am not certain that there is a modern system with 32-bit time_t. We
> > know there are systems with 32-bit unsigned long, and I think that is
> > what produced the results people saw. I'd expect even 32-bit systems to
> > use "int64_t" or similar for their time_t these days.
> 
> OK.

In case it wasn't clear, I was mostly guessing there. So I dug a bit
further, and indeed, I am wrong. Linux never bumped to a 64-bit time_t
on i386 because of the ABI headaches.

That being said, I still think the "clamp to time_t" strategy is
reasonable. Unless you are doing something really exotic like pretending
to be from the future, nobody will care for 20 years. And at that point,
systems with a 32-bit time_t are going to have to do _something_,
because time() is going to start returning bogus values. So as long as
we behave reasonably (e.g., clamping values and not generating wrapped
nonsense), I think that's a fine solution.

-Peff

  reply	other threads:[~2016-07-12 16:09 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-11 20:13 [ANNOUNCE] Git v2.9.1 Junio C Hamano
2016-07-11 21:35 ` Andreas Schwab
2016-07-11 23:54   ` Jeff King
2016-07-12  0:40     ` Anders Kaseorg
2016-07-12 14:06       ` Jeff King
2016-07-12  0:56     ` Eric Wong
2016-07-12  1:15       ` Jeff King
2016-07-12  1:59     ` Junio C Hamano
2016-07-12  3:57       ` Jeff King
2016-07-12 15:55         ` Junio C Hamano
2016-07-12  7:30       ` Johannes Schindelin
2016-07-12  7:39         ` Jeff King
2016-07-12 11:25           ` Johannes Schindelin
2016-07-12 14:04             ` Jeff King
2016-07-13 11:35               ` Johannes Schindelin
2016-07-13 16:03                 ` Junio C Hamano
2016-07-13 19:10                   ` Johannes Schindelin
2016-07-13 19:41                     ` Junio C Hamano
2016-07-14  7:50                       ` Johannes Schindelin
2016-07-12 18:12             ` Junio C Hamano
2016-07-13  1:53               ` Junio C Hamano
2016-07-13  2:01               ` Jeff King
2016-07-13 16:05                 ` Junio C Hamano
2016-07-13 18:52                   ` Johannes Schindelin
2016-07-13 19:07                     ` Junio C Hamano
2016-07-14  7:45                       ` Johannes Schindelin
2016-07-14  8:01                         ` Andreas Schwab
2016-07-14  8:15                         ` Jeff King
2016-07-14 16:06                       ` Johannes Schindelin
2016-07-12  7:40         ` Andreas Schwab
2016-07-12 10:57           ` Johannes Schindelin
2016-07-12 13:00             ` Andreas Schwab
2016-07-12 13:22               ` Johannes Schindelin
2016-07-12 13:31                 ` Andreas Schwab
2016-07-12 13:46                   ` Jeff King
2016-07-12 18:38                     ` Duy Nguyen
2016-07-13 11:29                       ` Johannes Schindelin
2016-07-13 11:25                   ` Johannes Schindelin
2016-07-12 14:34         ` Junio C Hamano
2016-07-12 15:16           ` Jeff King
2016-07-12 15:25             ` Junio C Hamano
2016-07-12 15:35               ` Jeff King
2016-07-12 15:41                 ` Junio C Hamano
2016-07-12 16:09                   ` Jeff King [this message]
2016-07-12 16:25                     ` Junio C Hamano
2016-07-13 14:00                       ` Johannes Schindelin
2016-07-13 16:10                         ` Junio C Hamano
2016-07-13 18:53                           ` Johannes Schindelin
2016-07-12 18:15                     ` Andreas Schwab
2016-07-13 20:43       ` Junio C Hamano
2016-07-14  7:38         ` Lars Schneider
2016-07-16  5:50           ` Duy Nguyen
2016-07-14  7:58         ` 32-bit Travis, was " Johannes Schindelin
2016-07-14  9:12           ` Mike Hommey
2016-07-14 10:58             ` Johannes Schindelin
2016-07-15  1:59               ` Mike Hommey

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