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From: darcy <acednes@gmail.com>
To: Jeff King <peff@peff.net>
Cc: phillip.wood@dunelm.org.uk, Junio C Hamano <gitster@pobox.com>,
	darcy via GitGitGadget <gitgitgadget@gmail.com>,
	git@vger.kernel.org, Patrick Steinhardt <ps@pks.im>
Subject: Re: [PATCH v2] date: detect underflow when parsing dates with positive timezone offset
Date: Wed, 5 Jun 2024 16:52:21 +1000	[thread overview]
Message-ID: <c525e112-b4da-4871-88fd-6e62b3ff1ba1@gmail.com> (raw)
In-Reply-To: <20240604093345.GA1279521@coredump.intra.peff.net>

On 4/6/24 19:33, Jeff King wrote:

> I think the 2099 limitation is there because 2100 is not a leap year,
> and the code has over-simplified computation there (it counts every 4th
> year as a leap year, which is not generally true for century boundaries,
> except for 2000 because it is divisible by 400).

Ah, that makes sense, thanks.

> If you're interested in picking up the negative timestamp work, I'd be
> happy to discuss it. It's been on my todo list for a long time, but I
> never quite get around to it.

I may look at this in the future, but this looks a little out of my depth
at the moment, as I am still unfamiliar with the codebase.

For the moment, I will just add the check at year 2099, and possibly will
revisit this when I have more time on my hands.


  reply	other threads:[~2024-06-05  6:52 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-27  9:17 [PATCH] fix: prevent date underflow when using positive timezone offset darcy via GitGitGadget
2024-05-28 14:05 ` Patrick Steinhardt
2024-05-28 14:49   ` Phillip Wood
2024-05-28 17:06   ` Junio C Hamano
2024-06-02 23:06 ` [PATCH v2] date: detect underflow when parsing dates with " darcy via GitGitGadget
2024-06-03 11:13   ` Junio C Hamano
2024-06-03 11:44     ` darcy
2024-06-03 14:13       ` Phillip Wood
2024-06-04  8:48         ` darcy
2024-06-04  9:33           ` Jeff King
2024-06-05  6:52             ` darcy [this message]
2024-06-05 13:10           ` Phillip Wood
2024-06-05 17:27             ` Junio C Hamano
2024-06-06  4:56               ` darcy
2024-06-07  0:17   ` [PATCH v3] date: detect underflow/overflow when parsing dates with " darcy via GitGitGadget
2024-06-07 17:40     ` Junio C Hamano
2024-06-08 18:58       ` Junio C Hamano
2024-06-14  1:20         ` Junio C Hamano
2024-06-15 11:47           ` Karthik Nayak
2024-06-11 23:30       ` Junio C Hamano
2024-06-11 23:49         ` rsbecker
2024-06-11 23:52           ` Junio C Hamano
2024-06-25 23:12         ` [PATCH v4 0/2] Darcy's "date underflow fix" topic, final reroll Junio C Hamano
2024-06-25 23:12           ` [PATCH v4 1/2] t0006: simplify prerequisites Junio C Hamano
2024-06-25 23:30             ` Eric Sunshine
2024-06-26  0:04               ` Junio C Hamano
2024-06-25 23:12           ` [PATCH v4 2/2] date: detect underflow/overflow when parsing dates with timezone offset Junio C Hamano
2024-06-26 15:21           ` [PATCH v4 0/2] Darcy's "date underflow fix" topic, final reroll Phillip Wood
2024-06-26 18:32             ` Junio C Hamano
2024-06-12  9:07       ` [PATCH v3] date: detect underflow/overflow when parsing dates with timezone offset Phillip Wood
2024-06-12  9:49     ` Karthik Nayak
2024-06-13 13:31       ` Phillip Wood
2024-06-13 16:16         ` Junio C Hamano
2024-06-14 20:09           ` Karthik Nayak
2024-06-14 21:02             ` Junio C Hamano
2024-06-15 11:49               ` Karthik Nayak

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