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From: David Kastrup <dak@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: Adding many elements to a list
Date: Tue, 22 Sep 2009 17:18:13 +0200	[thread overview]
Message-ID: <87iqfbrosq.fsf@lola.goethe.zz> (raw)
In-Reply-To: 7cskefp344.fsf@pbourguignon.lefevre.anevia.com

pjb@informatimago.com (Pascal J. Bourguignon) writes:

> David Kastrup <dak@gnu.org> writes:
>> Well, consult its doc string for what it does and doesn't.  It's
>> basically the same issue as with setf/setq: the cl version of push
>> does a number of different things depending on a vague concept
>> "location".  But you almost never need this sort of flexibility at
>> runtime, and at compile time, it obfuscates what actually happens,
>> including the possible performance impacts.
>
> You should write in assembler (what do I say, in binary!), because you
> almost never need the flexibility that the bare push provide at
> run-time, and at compilation time, it obfuscate what really happens,
> including the possible performance impacts.

What use is winning when nobody wants to play with you anymore?

-- 
David Kastrup


  reply	other threads:[~2009-09-22 15:18 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-18 13:15 Adding many elements to a list Nordlöw
2009-09-18 13:44 ` Pascal J. Bourguignon
2009-09-18 14:23   ` David Kastrup
2009-09-18 14:48     ` Pascal J. Bourguignon
2009-09-18 14:54       ` David Kastrup
2009-09-18 15:13         ` Pascal J. Bourguignon
2009-09-19  7:34           ` Andreas Politz
2009-09-22  7:07           ` David Kastrup
2009-09-22 11:53             ` Pascal J. Bourguignon
2009-09-22 12:16               ` David Kastrup
2009-09-22 12:37                 ` Pascal J. Bourguignon
2009-09-22 15:18                   ` David Kastrup [this message]
2009-09-28 20:03                 ` Samuel Wales
2009-09-18 16:24         ` Thierry Volpiatto
2009-09-18 13:52 ` David Kastrup

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