William Ramsay scripsit:
> I've recently moved from Chicken-3.4.0 to Chicken-4.0.0.
>
> I've been using a structure macro I got from /Teach Yourself Scheme in
> Fixnum Days/ by Dorai Sitaram. It's worked fine in 3.4 but fails in
> 4.0 and I can figure out why. It fails on line 4 of (define-syntax
> define-structure) with a compile error starting that s is not a
> symbol. It is trying to read (define-structure customer ...) at the
> bottom of the listing. Why is the word customer no longer a symbol?
In Chicken 4, a bare lambda in define-syntax is an explicit-renaming
macro, so the simplest change is this:
> (define-syntax define-structure
> (lambda (s . ff)
(lambda body rename compare)
(define s (car body))
(define ff (cdr body))
--
Newbies always ask: John Cowan
"Elements or attributes? http://www.ccil.org/~cowan
Which will serve me best?" co...@ccil.org
Those who know roar like lions;
Wise hackers smile like tigers. --a tanka, or extended haiku
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