From: timsuth@... (Tim Sutherland)
Date: 2002-02-06T09:01:04+09:00
Subject: Re: Call/CC and Ruby iterators.

In article <3c621958.43511656@nntp.interaccess.com>, Thaddeus L Olczyk wrote:
>Reading about call/cc in Scheme I get the impression that it is very
>like Ruby's iterators.
>Not being an expert in others I thought I would ask.

No. Ruby's ``iterators'' just call a closure repeatedly. The 'callcc' method
in Ruby is equivalent to Scheme's call/cc.

Ruby
	[1, 2, 3].map { |x| x+1 }
Scheme
	(map (lambda (x) (+ x 1)) (list 1 2 3))

Others will be better at explaining what call-with-current-continuation
actually does. There have been some good descriptions on this newsgroup
previously. (groups.google.com should have these.)

-- 
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