 Interesting Icon Papers
started 11/7/2000; 12:19:43 AM - last post 11/7/2000; 7:44:12 AM
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Ehud Lamm - Interesting Icon Papers 
11/7/2000; 12:19:43 AM (reads: 580, responses: 5)
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andrew cooke - Re: Interesting Icon Papers
11/7/2000; 2:36:44 AM (reads: 590, responses: 0)
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A programming rather than a languages related question - what is a Power Loop? The Icon paper on goal directed evaluation mentions them and I remember once reading an explanation on the net, but now cannot find any useful references. Anyone have any pointers?
Thanks,
Andrew
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Ehud Lamm - Re: Interesting Icon Papers
11/7/2000; 3:25:34 AM (reads: 578, responses: 1)
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The Finkel book discusses the Power Loop. Amazingly enough the goal directed evaluation paper, mentions the power loop AND Finkel!
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Chris Rathman - Re: Interesting Icon Papers
11/7/2000; 6:51:40 AM (reads: 617, responses: 0)
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The Finkel book downplays the usefulness of power loops, preferring recursion as the more general solution.
I gather from the material that it is referring to a nested loop and the term power comes from raising the loop to the power of some level (for * for * for = for^3 type of thing). Instead of using recursion to iterate and backtrack through the levels of nesting, the power loop uses straight iteration via an array of pointers.
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andrew cooke - Re: Interesting Icon Papers
11/7/2000; 7:28:56 AM (reads: 578, responses: 0)
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Cheers. That was it.
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Chris Rathman - Re: Interesting Icon Papers
11/7/2000; 7:44:12 AM (reads: 589, responses: 0)
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Don't know if it's of any help, but I did cross paths with an Icon afficionado a while back. Most of the discussion was scattered through 3 different websites in various forums, but I did manage to dig up one exchange where we were discussing Icon Success and Failure which is relevant to generators. The discussion was in the middle of a Smalltalk forum so it didn't drag on forever.
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