From: "Mattias Engdegård" <mattias.engdegard@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 67008@debbugs.gnu.org, Ikumi Keita <ikumi@ikumi.que.jp>,
Yuan Fu <casouri@gmail.com>, Dmitry Gutov <dgutov@yandex.ru>
Subject: bug#67008: 30.0.50; Multiple major mode parents
Date: Sun, 12 Nov 2023 14:37:15 +0100 [thread overview]
Message-ID: <B2AD1A55-2EE2-49AA-8032-27D443A237F3@gmail.com> (raw)
In-Reply-To: <jwvcywgvzda.fsf-monnier+emacs@gnu.org>
11 nov. 2023 kl. 21.13 skrev Stefan Monnier <monnier@iro.umontreal.ca>:
> Having read a bit further, I'm now not sure that `merge-ordered-lists`
> implements C3. I suspect it provides a useful primitive with which to
> implement C3 but whether it gives the same result as C3 or not depends
> on how we call it.
Yes, the output seems very sensitive about the input order:
(B A) (C A) (D B) (E D C) -> (E D B C A)
(E D C) (B A) (C A) (D B) -> (E D C B A)
Maybe that's obvious for someone who knows how to use it.
It could probably be used as a general-purpose topo-sorter but it's not a very efficient one (at least quadratic, possibly cubic).
Oh, and the function probably shouldn't call delq on its input argument.
next prev parent reply other threads:[~2023-11-12 13:37 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-09 5:38 bug#67008: 30.0.50; Multiple major mode parents Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-09 7:43 ` Yuan Fu
2023-11-12 22:11 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-16 15:16 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-11 0:01 ` Dmitry Gutov
2023-11-11 4:23 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-11 10:14 ` Mattias Engdegård
2023-11-11 16:20 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-11 18:12 ` Mattias Engdegård
2023-11-11 18:43 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-11 20:13 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-12 13:37 ` Mattias Engdegård [this message]
2023-11-12 16:41 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-13 12:45 ` Mattias Engdegård
2023-11-13 13:30 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-13 16:44 ` Mattias Engdegård
2023-11-13 17:46 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-16 11:07 ` Mattias Engdegård
2023-11-16 15:15 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-16 19:35 ` Mattias Engdegård
2023-11-16 21:40 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-17 14:04 ` Mattias Engdegård
2023-11-17 14:20 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-17 16:15 ` Mattias Engdegård
2023-11-11 12:21 ` Ikumi Keita
2023-11-11 16:57 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-12 9:50 ` Ikumi Keita
2023-11-12 16:04 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
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