From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: narrowing considered harmful
Date: Mon, 17 Jun 2013 10:56:07 -0400 [thread overview]
Message-ID: <jwvli68rdln.fsf-monnier+gmane.emacs.help@gnu.org> (raw)
In-Reply-To: m1r4g257nw.fsf@gmail.com
>> I wouldn't worry about it. It can even be a bad idea (set-marker to
>> nil requires scanning the whole list of markers, so it can take a while.
>> It can be more efficient to let the GC collect them later on).
>>
>>
>> Stefan
> Good to know this. The manual contains this:
> ,----[ (info "(elisp)Overview of Markers") ]
> | ;; When you are finished using a marker, make it point nowhere.
> | (set-marker m1 nil)
> | => #<marker in no buffer>
> `----
> Should that be changed?
Not necessarily: whether it's better to nil them explicitly or to leave
them as they are depends on the specific case.
Stefan
next prev parent reply other threads:[~2013-06-17 14:56 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-03 5:43 putting double quotes efficiently C K Kashyap
2013-06-03 7:26 ` Andreas Röhler
2013-06-03 7:55 ` Andreas Röhler
2013-06-03 8:03 ` C K Kashyap
2013-06-03 9:10 ` Andreas Röhler
2013-06-03 11:52 ` C K Kashyap
[not found] ` <mailman.918.1370250440.22516.help-gnu-emacs@gnu.org>
2013-06-13 14:40 ` narrowing considered harmful (was: putting double quotes efficiently) Stefan Monnier
2013-06-14 3:54 ` narrowing considered harmful Leo Liu
2013-06-14 13:00 ` Stefan Monnier
2013-06-14 16:51 ` Leo Liu
2013-06-15 2:43 ` Stefan Monnier
2013-06-16 16:42 ` Leo Liu
2013-06-17 14:56 ` Stefan Monnier [this message]
2013-06-17 15:20 ` Drew Adams
2013-06-17 16:48 ` Stefan Monnier
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