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From: wb...@gmx.net (Wolfhard =?iso-8859-1?q?Bu=DF?=)
Newsgroups: comp.lang.lisp
Subject: Re: Cookbook question: How to change a list to a vector?
Date: 15 Feb 2002 10:12:55 +0100
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olc...@interaccess.com (Thaddeus L Olczyk) writes:

> Given a system that is running slower than you would like.
> One thing that you wish to do is replace a list with a vector
> since you can see many inefficient operations on the list.
> How would one proceed?

 (lambda (list) (make-array (length list) :initial-contents list))

comes to mind, or

 (lambda (list) (map 'vector #'identity list))

An experienced Lisper might find a more sophisticated operator to
coerce a list into a vector;)


-- 
"Das Auto hat keine Zukunft. Ich setze aufs Pferd."  Wilhelm II. (1859-1941)