From: "Mattias Engdegård" <mattiase@acm.org>
To: Daniel Mendler <mail@daniel-mendler.de>
Cc: Philip Kaludercic <philipk@posteo.net>,
Stefan Monnier <monnier@iro.umontreal.ca>,
63103-done@debbugs.gnu.org
Subject: bug#63103: 30.0.50; nconc compiler optimization breaks user packages
Date: Thu, 27 Apr 2023 14:28:58 +0200 [thread overview]
Message-ID: <E90776F9-3E5E-474A-B642-2F1043EFE1E0@acm.org> (raw)
In-Reply-To: <679f4102-4e3f-656f-18d9-4a3cc68ce595@daniel-mendler.de>
27 apr. 2023 kl. 12.42 skrev Daniel Mendler <mail@daniel-mendler.de>:
> I think it is
> kind of nice that `nconc' can be used as a tool to turn a proper list
> into an improper list and vice versa.
It's a bit obscure, though --
(setcdr (last X) nil)
is a lot clearer than
(nconc X nil)
and when the latter is preferred for performance, a comment might be polite to the reader.
Anyway, a fix has been pushed to master, and the manual entry for `nconc` got an extra example.
next prev parent reply other threads:[~2023-04-27 12:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-26 22:50 bug#63103: 30.0.50; nconc compiler optimization breaks user packages Maks
2023-04-27 5:34 ` Daniel Mendler
2023-04-27 5:44 ` Philip Kaludercic
2023-04-27 6:37 ` Daniel Mendler
2023-04-27 9:47 ` Mattias Engdegård
2023-04-27 10:42 ` Daniel Mendler
2023-04-27 12:28 ` Mattias Engdegård [this message]
2023-04-27 12:55 ` Daniel Mendler
2023-04-27 13:54 ` Drew Adams
2023-04-27 14:02 ` Daniel Mendler
2023-04-27 13:32 ` Maks
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