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From: barmar@mit-eddie.UUCP (Barry Margolin)
Newsgroups: net.lang
Subject: Re: Generators & Iterators / Re: Loop Indexing - (nf)
Message-ID: <1210@mit-eddie.UUCP>
Date: Thu, 19-Jan-84 22:00:41 EST
Article-I.D.: mit-eddi.1210
Posted: Thu Jan 19 22:00:41 1984
Date-Received: Fri, 20-Jan-84 07:03:59 EST
References: <2287@fortune.UUCP> <2291@fortune.UUCP>
Organization: MIT, Cambridge, MA
Lines: 14

I don't know about some of the other languages, but iterators in CLU
don't provide a mechanism for the compiler to optimize the order in
which elements are processed.  The iterator procedure yields the items
in a well-defined order.

The place to look for examples of this kind of stuff is in languages
designed for multi-processor systems.  I also heard about an
APL-machine, i.e. a minicomputer with microcode designed for running
APL, with an array processor so that it could process arrays
efficiently.
-- 
			Barry Margolin
			ARPA: barmar@MIT-Multics
			UUCP: ..!genrad!mit-eddie!barmar