Re: Some things that pointer-less languages can't do efficiently

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Article #1992

#1992

From: Peter da Silva
Date: Thu, 08 Nov 1990 17:26

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In article <3716@skye.ed.ac.uk> jeff@aiai.UUCP (Jeff Dalton) writes:
> Another sense, perhaps more relevant to the present discussion, is
> that in Lisp & Scheme there's no way to get a pointer to the middle
> of a structure.  You can't have a pointer to the cdr of a list...

(setq a '(foo (bar baz)))
(setq b (cdr a))
(rplaca b 'bog)
-- 
Peter da Silva.   `-_-'    Professional computer nerd, second class.
+1 713 274 5180.   'U`    Gallery Furniture really will SAVE YOU MONEY!
peter@ferranti.com      (Have you hugged your wolf today?)

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<26739:Oct1023:44:2690@kramden.acf.nyu.edu> <65450@lanl.gov> <10397:Oct1212:55:1090@kramden.acf.nyu.edu> <3975@goanna.cs.rmit.oz.au> <3716@skye.ed.ac.uk>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!know!zaphod.mps.ohio-state.edu!lavaca.uh.edu!menudo.uh.edu!sugar!ficc!peter
From: peter@ficc.ferranti.com (Peter da Silva)
Newsgroups: comp.lang.misc
Subject: Re: Some things that pointer-less languages can't do efficiently
Message-ID: <HEZ6WP9@xds13.ferranti.com>
Date: 8 Nov 90 17:26:37 GMT
References: <26739:Oct1023:44:2690@kramden.acf.nyu.edu> <65450@lanl.gov> <10397:Oct1212:55:1090@kramden.acf.nyu.edu> <3975@goanna.cs.rmit.oz.au> <3716@skye.ed.ac.uk>
Reply-To: peter@ficc.ferranti.com (Peter da Silva)
Organization: Xenix Support, FICC
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