unofficial mirror of help-gnu-emacs@gnu.org
 help / color / mirror / Atom feed
From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: Why does using aset sometimes output raw bytes?
Date: Sun, 09 Dec 2018 16:20:59 -0500	[thread overview]
Message-ID: <jwvk1ki2yf1.fsf-monnier+gmane.emacs.help@gnu.org> (raw)
In-Reply-To: 83lg4y30vz.fsf@gnu.org

>> It's not the implementation, but the semantics of unibyte/multibyte
>> strings presumes that the difference doesn't matter much for ASCII-only
>> strings, which is mostly true but isn't true in the case of `aset`.
> The same is true about concat, btw.

I think it's less severe (`aset` can end up changing (by side-effect)
a unibyte string to multibyte, i.e. changing the nature of the object,
which I believe is the only time we do something like that), but yes
similar problems appear elsewhere (hence the "mostly" above).


        Stefan




  reply	other threads:[~2018-12-09 21:20 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-09 15:16 Why does using aset sometimes output raw bytes? Stephen Berman
2018-12-09 15:20 ` Eli Zaretskii
2018-12-09 15:46   ` Stephen Berman
2018-12-09 15:56     ` Stephen Berman
2018-12-09 17:12     ` Eli Zaretskii
2018-12-09 17:32       ` Stephen Berman
2018-12-09 17:47         ` Eli Zaretskii
2018-12-09 18:50           ` Stephen Berman
2018-12-09 18:55             ` Eli Zaretskii
2018-12-09 17:10 ` Stefan Monnier
2018-12-09 17:20   ` Stephen Berman
2018-12-09 19:20     ` Stefan Monnier
2018-12-09 20:23       ` Eli Zaretskii
2018-12-09 21:20         ` Stefan Monnier [this message]
2018-12-10  5:59           ` Eli Zaretskii
2018-12-10 13:56             ` Stefan Monnier
2018-12-09 20:43       ` Stephen Berman

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=jwvk1ki2yf1.fsf-monnier+gmane.emacs.help@gnu.org \
    --to=monnier@iro.umontreal.ca \
    --cc=help-gnu-emacs@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).