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From: Miles Bader <miles@gnu.org>
To: rms@gnu.org
Cc: Kenichi Handa <handa@ni.aist.go.jp>, emacs-devel@gnu.org
Subject: Re: (aset UNIBYTE-STRING MULTIBYTE-CHAR)
Date: Thu, 14 Feb 2008 08:13:51 +0900	[thread overview]
Message-ID: <87skzwsb4g.fsf@catnip.gol.com> (raw)
In-Reply-To: <E1JPPf2-0007tp-4P@fencepost.gnu.org> (Richard Stallman's message of "Wed, 13 Feb 2008 17:01:00 -0500")

Richard Stallman <rms@gnu.org> writes:
> But it is not terribly hard to make this case work once again, given
> that all strings are indirect.  At worst, one can make a new string
> with the modified contents, then swap the `data' pointers between the
> new string and the old one.

As Stefan noted, though, the entire idea of using aset to store into a
multibyte string is rather dodgy...I think there's a certain expectation
by users of aset that the operation follows general array behavior, most
notably O(1) complexity, and storing into a multibyte string doesn't
follow that.  If we can discourage this usage without too much fallout,
that seems a lot better in the long run.

-Miles

-- 
Twice, adv. Once too often.




  reply	other threads:[~2008-02-13 23:13 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-13  2:36 (aset UNIBYTE-STRING MULTIBYTE-CHAR) Kenichi Handa
2008-02-13  2:49 ` Stefan Monnier
2008-02-13  3:48   ` Kenichi Handa
2008-02-13 15:33     ` Stefan Monnier
2008-02-13 18:06       ` Stephen J. Turnbull
2008-02-13 19:33         ` Stefan Monnier
2008-02-13 22:49         ` Miles Bader
2008-02-14  1:11           ` Stephen J. Turnbull
2008-02-14  1:17             ` Miles Bader
2008-02-14  1:40               ` Stefan Monnier
2008-02-14  1:49                 ` Miles Bader
2008-02-14 18:10                 ` Richard Stallman
2008-02-14 22:40                   ` David Kastrup
2008-02-15  1:08                     ` Stephen J. Turnbull
2008-02-15  1:17                       ` Miles Bader
2008-02-15  7:27                         ` David Kastrup
2008-02-15 12:58                     ` Richard Stallman
2008-02-14 23:37                   ` Leo
2008-02-15 12:59                     ` Richard Stallman
2008-02-14  4:20               ` Stephen J. Turnbull
2008-02-14  4:42         ` Richard Stallman
2008-02-15  1:39       ` Kenichi Handa
2008-02-15  4:27         ` Stefan Monnier
2008-02-15  8:42         ` Eli Zaretskii
2008-02-15  8:53           ` Miles Bader
2008-02-16 12:55             ` Eli Zaretskii
2008-02-16  5:53         ` Richard Stallman
2008-02-16 14:33           ` Stefan Monnier
2008-02-17 20:29             ` Richard Stallman
2008-02-18  1:15               ` Stefan Monnier
2008-02-18  4:00                 ` Kenichi Handa
2008-02-18 17:31                 ` Richard Stallman
2008-02-13 22:01 ` Richard Stallman
2008-02-13 23:13   ` Miles Bader [this message]
  -- strict thread matches above, loose matches on Subject: below --
2008-04-15  7:11 Kenichi Handa
2008-04-15 15:52 ` Stefan Monnier
2008-04-17  1:13   ` Kenichi Handa
2008-05-07 19:31 Harald Hanche-Olsen
2008-05-14  6:54 ` Harald Hanche-Olsen
2008-05-14 12:22   ` Stefan Monnier
2008-05-14 12:50     ` Harald Hanche-Olsen
2008-05-15  1:18       ` Stefan Monnier
2008-05-15  6:11         ` Harald Hanche-Olsen

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