From: <tomas@tuxteam.de>
To: help-gnu-emacs@gnu.org
Subject: Re: Is there a way to convert a keyboard macro to a string?
Date: Wed, 26 Jul 2017 22:22:53 +0200 [thread overview]
Message-ID: <20170726202253.GA16445@tuxteam.de> (raw)
In-Reply-To: <86mv7rt9y2.fsf@zoho.com>
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On Wed, Jul 26, 2017 at 06:55:01PM +0200, Emanuel Berg wrote:
[...]
> While we have the Supreme Techno-Pope out of
> the paleo-Metabunker, let me ask him to explain
> the reason behind vectors.
Not the Pope here, by a long stretch, but the reason
is in the (Elisp) doc ("6 Sequences, Arrays, Vectors"):
a vector is constant access time for the nth element,
while on a list you need time proportional to the
number n (i.e. you have to "walk down" the list to
access its nth element (or rather, the little Lisp
gremlin has to do it for you).
OTOH, prepending an element to a list is quick & easy,
whereas for a vector, you have to copy the whole kaboodle
to get another vector.
Similar, yet different tools.
- -- t
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next prev parent reply other threads:[~2017-07-26 20:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-26 6:20 Is there a way to convert a keyboard macro to a string? Marcin Borkowski
2017-07-26 6:41 ` Emanuel Berg
2017-07-26 6:43 ` Emanuel Berg
2017-07-26 7:20 ` Héctor Lahoz
2017-07-26 8:52 ` Emanuel Berg
2017-07-26 13:13 ` Stefan Monnier
2017-07-26 16:55 ` Emanuel Berg
2017-07-26 20:22 ` tomas [this message]
2017-07-26 20:34 ` Emanuel Berg
2017-07-26 20:51 ` John Mastro
2017-07-26 23:32 ` Emanuel Berg
2017-07-26 18:18 ` Marcin Borkowski
2017-07-26 18:40 ` Stefan Monnier
2017-07-26 20:38 ` Emanuel Berg
2017-07-27 6:22 ` Marcin Borkowski
2017-07-27 12:54 ` Stefan Monnier
2017-08-08 4:56 ` Marcin Borkowski
2017-08-08 6:32 ` John Ankarström
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