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From: Alan Mackenzie <acm@muc.de>
To: Glenn Morris <rgm@gnu.org>
Cc: 28280@debbugs.gnu.org
Subject: bug#28280: Maximally unhelpful diagnostic message.
Date: Tue, 29 Aug 2017 20:15:57 +0000	[thread overview]
Message-ID: <20170829201557.GB4339@ACM> (raw)
In-Reply-To: <fmh8wqdvuw.fsf@fencepost.gnu.org>

Hello, Glenn.

On Tue, Aug 29, 2017 at 15:20:23 -0400, Glenn Morris wrote:
> Alan Mackenzie wrote:

> >     Assertion failed: (eq 10 (char-before))

> A few seconds grep suggests this is due to the code in newline, added ~
> 3 years ago in 62ee8b1 ("Add assertions to try and help catch bug#18913").
> The complete lack of progress in that report since then suggests it may
> be time to remove/downgrade those assertions.

Yes, but that's a separate problem from the essence of the bug report.
Regardless of the lack of progress on bug #18913, the information
provided by an assert being triggered is unhelpful and inadequate.

That aside, I can't see how the two assertions suggested in #18913 could
trigger the message I saw.  I'll maybe have a look at the actual patch
sometime when I'm less tired.

-- 
Alan Mackenzie (Nuremberg, Germany).





  parent reply	other threads:[~2017-08-29 20:15 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-29 18:41 bug#28280: Maximally unhelpful diagnostic message Alan Mackenzie
2017-08-29 19:20 ` Glenn Morris
2017-08-29 19:32   ` John Wiegley
2017-08-29 20:15   ` Alan Mackenzie [this message]
2017-08-30 12:17     ` npostavs
2020-08-24 13:59       ` Lars Ingebrigtsen
2020-10-11  2:08         ` Lars Ingebrigtsen
2017-08-30 19:51     ` Glenn Morris
2017-08-31 21:11       ` Alan Mackenzie
2017-09-18  5:35 ` Paul Eggert

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