GNU bug report logs - #25929
25.2; map-delete doesn't delete permanently 1st alist elt

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Package: emacs;

Reported by: Tino Calancha <tino.calancha <at> gmail.com>

Date: Thu, 2 Mar 2017 07:19:01 UTC

Severity: normal

Found in version 25.2

Fixed in version 29.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: Nicolas Petton <nicolas <at> petton.fr>
To: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
Cc: 25929 <at> debbugs.gnu.org, Tino Calancha <tino.calancha <at> gmail.com>
Subject: bug#25929: 25.2; map-delete doesn't delete permanently 1st alist elt
Date: Wed, 26 Apr 2017 09:58:10 +0200

[Message part 1 (text/plain, inline)]
Stefan Monnier <monnier <at> IRO.UMontreal.CA> writes:

> That's right.  Or it could signal an error, if copying is considered to
> be "never the right thing to do".

If hash-tables were persistent data structures, I'd say that it would
definitely be the right thing to do.

I didn't implement map.el as a functional library because vectors and
hash-tables are not persistent.

Nico

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This bug report was last modified 3 years and 27 days ago.

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