[racket] iteration for user-defined data structures

From: Carl Eastlund (cce at ccs.neu.edu)
Date: Fri Jun 3 10:38:30 EDT 2011

On Wed, Jun 1, 2011 at 9:19 AM, Matthias Felleisen <matthias at ccs.neu.edu> wrote:
> Sam and Carl, it looks like the two of you could write improved docs. -- Matthias

I have added some examples to the documentation of for/fold/derived,
for*/fold/derived, and define-sequence-syntax (which also demonstrates


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