From: Nicolas Petton <nicolas@petton.fr>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: Nicolas Petton <nicolas@petton.fr>, emacs-devel <emacs-devel@gnu.org>
Subject: Re: reverse in Emacs 24.4
Date: Wed, 11 Feb 2015 14:37:21 +0100 [thread overview]
Message-ID: <87oap0h8mm.fsf@petton.fr> (raw)
In-Reply-To: <jwvpp9ho5gb.fsf-monnier+emacs@gnu.org>
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
>> I want to add a backward-compatible version `seq-reverse' for older
>> versions of Emacs, but I'm not sure how I should check the version of
>> Emacs. Parsing the string `emacs-version' seems like a bad idea.
>
> The way I usually "parse" versions looks like:
>
> (defalias 'seq-reverse
> (if (ignore-errors (reverse [1 2]))
> #'reverse
> (lambda ...)))
I see. So you'd rather test the feature instead of check the version of
Emacs?
Nico
--
Nicolas Petton
http://nicolas-petton.fr
next prev parent reply other threads:[~2015-02-11 13:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-10 16:16 reverse in Emacs 24.4 Nicolas Petton
2015-02-10 17:03 ` Artur Malabarba
2015-02-10 17:17 ` Nicolas Petton
2015-02-10 20:53 ` Stefan Monnier
2015-02-11 13:37 ` Nicolas Petton [this message]
2015-02-11 15:37 ` Stefan Monnier
2015-02-12 1:43 ` Stephen J. Turnbull
2015-02-12 14:23 ` Stefan Monnier
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