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From: Eli Zaretskii <eliz@gnu.org>
To: "Mattias Engdegård" <mattias.engdegard@gmail.com>
Cc: 65491@debbugs.gnu.org, eggert@cs.ucla.edu, monnier@iro.umontreal.ca
Subject: bug#65491: [PATCH] Improve performance allocating vectors
Date: Mon, 18 Sep 2023 20:13:45 +0300	[thread overview]
Message-ID: <83h6nre75i.fsf@gnu.org> (raw)
In-Reply-To: <95C2D44B-BA1B-47F5-8279-B3A3B8F7EB39@gmail.com> (message from Mattias Engdegård on Mon, 18 Sep 2023 18:10:47 +0200)

> From: Mattias Engdegård <mattias.engdegard@gmail.com>
> Date: Mon, 18 Sep 2023 18:10:47 +0200
> Cc: Paul Eggert <eggert@cs.ucla.edu>,
>  65491@debbugs.gnu.org,
>  monnier@iro.umontreal.ca
> 
> 17 sep. 2023 kl. 18.44 skrev Eli Zaretskii <eliz@gnu.org>:
> 
> > Feel free to add any comments you find useful, that is always welcome.
> > But comments about complicated code have one downside: they need to be
> > updated when the code changes, and people forget to do that...
> 
> Eli and Paul, thank you very much. I'm reapplying the patches (that we now know shouldn't cause warnings), with added comments with respect to the vanishing subtrahend in -with-wide-int builds.

Fine with me, but I still hope Paul will do good on his proposal to
add comments...

> The conversion at the other end, TAG_PTR, suffers from the same potential problem but in reverse, which is perhaps less obvious to the casual C programmer but nevertheless a danger of the same kind, so we'd better do something about it as well. I'll be back with a proposed patch.

Thanks.





  reply	other threads:[~2023-09-18 17:13 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-24  9:59 bug#65491: [PATCH] Improve performance allocating vectors Ihor Radchenko
2023-08-26  7:14 ` Eli Zaretskii
2023-08-26  7:27   ` Ihor Radchenko
2023-08-26  7:31     ` Eli Zaretskii
2023-08-26  7:51       ` Ihor Radchenko
2023-08-26  8:07         ` Ihor Radchenko
2023-08-26  9:01         ` Eli Zaretskii
2023-08-26  7:47     ` Ihor Radchenko
2023-08-26 12:01 ` Mattias Engdegård
2023-08-26 14:54   ` Ihor Radchenko
2023-08-26 14:55   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-27  9:54     ` Mattias Engdegård
2023-09-16 14:58     ` Mattias Engdegård
2023-09-16 16:12       ` Eli Zaretskii
2023-09-16 16:17         ` Eli Zaretskii
2023-09-16 16:32           ` Mattias Engdegård
2023-09-16 16:54             ` Eli Zaretskii
2023-09-16 17:03               ` Mattias Engdegård
2023-09-16 17:11                 ` Eli Zaretskii
2023-09-17  3:02                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-17 17:02                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-18  2:19                     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-18  2:27                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-18  3:08                         ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-18  4:10                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-16 16:54             ` Mattias Engdegård
2023-09-16 17:09               ` Eli Zaretskii
2023-09-16 17:22                 ` Mattias Engdegård
2023-09-16 18:19                   ` Eli Zaretskii
2023-09-16 19:04                     ` Mattias Engdegård
2023-09-16 19:46                 ` Paul Eggert
2023-09-17  5:18                   ` Eli Zaretskii
2023-09-17 15:22                     ` Paul Eggert
2023-09-17 16:15                       ` Eli Zaretskii
2023-09-17 16:37                         ` Paul Eggert
2023-09-17 16:44                           ` Eli Zaretskii
2023-09-18 16:10                             ` Mattias Engdegård
2023-09-18 17:13                               ` Eli Zaretskii [this message]
2023-09-19 13:28                               ` Mattias Engdegård
2023-09-19 14:04                                 ` Eli Zaretskii
2023-09-19 14:05                                   ` Mattias Engdegård
2023-09-25 16:06       ` Mattias Engdegård
2023-08-27 16:21 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-28 10:14   ` Ihor Radchenko
2023-08-28 16:32     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-28 12:47   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors

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