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Re: Adding Lists/Sequences


From: Nikolaj Schumacher
Subject: Re: Adding Lists/Sequences
Date: Wed, 24 Sep 2008 11:28:07 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2.50 (darwin)

Thierry Volpiatto <thierry.volpiatto@gmail.com> wrote:

> So can you explain when it is good (if it is) to use these destructive
> functions.

Generally, speed.  Non-destructive operations often create or copy a lot
of new cons cells.  So in time critical regions of code, when you're
only handling self-created data, and are very careful, that's the
advantage in using them.


regards,
Nikolaj Schumacher




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