From: Oleh <ohwoeowho@gmail.com>
To: Tassilo Horn <tsdh@gnu.org>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Any disadvantages of using put/get instead of defvar?
Date: Fri, 21 Feb 2014 10:44:57 +0100 [thread overview]
Message-ID: <CAA01p3pKH5xfAz1DZFDfhVb11hcNrB1av4gU1s8-6a2qTGCKvQ@mail.gmail.com> (raw)
In-Reply-To: <87bny0x0rx.fsf@thinkpad-t61.fritz.box>
>> But doesn't `defvar` introduce overhead this way?
>
> Well, I've measured my counter above versus a version using symbol
> properties as you suggest:
>
> (defun bar ()
> (let ((foo (or (get 'bar 'foo) 1)))
> (put 'bar 'foo (1+ foo))))
>
> My counter is way faster although it uses defvar and setq-local, so that
> overhead is still small compared to looking up/putting a symbol
> property.
>
Thanks, your suggestion wins then, since it's both pretty and fast.
If there's no new info in this issue, I'll just use your mehtod.
regards,
Oleh
next prev parent reply other threads:[~2014-02-21 9:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-20 17:04 Any disadvantages of using put/get instead of defvar? Oleh
2014-02-20 22:24 ` Tassilo Horn
2014-02-21 1:40 ` Stefan Monnier
2014-02-21 10:29 ` Nicolas Richard
2014-02-21 13:57 ` Stefan Monnier
2014-02-21 11:49 ` Tassilo Horn
2014-02-21 14:41 ` Stefan Monnier
2014-02-21 9:12 ` Oleh
2014-02-21 9:39 ` Tassilo Horn
2014-02-21 9:44 ` Oleh [this message]
2014-02-21 9:51 ` Andreas Röhler
2014-02-21 9:56 ` Sebastian Wiesner
2014-02-21 11:56 ` Tassilo Horn
[not found] ` <mailman.15678.1392983787.10748.help-gnu-emacs@gnu.org>
2014-02-21 13:45 ` Helmut Eller
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