From: Nicolas Petton <nicolas@petton.fr>
To: Stefan Monnier <monnier@iro.umontreal.ca>, emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] master c13a4df: Remove the calls to `seq-into` from `seq-concatenate`
Date: Mon, 24 Aug 2015 15:51:53 +0200 [thread overview]
Message-ID: <87k2skaj5y.fsf@petton.fr> (raw)
In-Reply-To: <jwvd1ycizah.fsf-monnier+emacsdiffs@gnu.org>
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Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> Remove the calls to `seq-into` from `seq-concatenate`
>> Since most new types of seq would have to be defined as sequences (cons
>> cells or CL structs, mostly), there is no need to convert the seqs to
>> sequences (which can be a fairly expensive operation).
>
> I don't understand this change. Can't it cause two CL-structs to be
> vconcat'd together, which wouldn't make much sense?
The previous version of `seq-concatenate' did not prevent that, since
CL-structs are vectors, thus sequences, and the function was using
`sequencep' to determine if the seq had to be converted or not.
Nico
--
Nicolas Petton
http://nicolas-petton.fr
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next prev parent reply other threads:[~2015-08-24 13:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20150823191413.17383.23210@vcs.savannah.gnu.org>
[not found] ` <E1ZTaib-0004Wz-Ih@vcs.savannah.gnu.org>
2015-08-24 13:37 ` [Emacs-diffs] master c13a4df: Remove the calls to `seq-into` from `seq-concatenate` Stefan Monnier
2015-08-24 13:51 ` Nicolas Petton [this message]
2015-08-24 19:23 ` Stefan Monnier
2015-08-25 8:32 ` Nicolas Petton
2015-08-25 14:30 ` Stefan Monnier
2015-08-25 14:48 ` Nicolas Petton
2015-08-25 21:52 ` Stefan Monnier
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