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From: Andy Wingo <wingo@pobox.com>
To: bug-guile <bug-guile@gnu.org>
Cc: ludo@gnu.org
Subject: peval error
Date: Sat, 10 Sep 2011 10:35:53 -0700	[thread overview]
Message-ID: <874o0kti4m.fsf@pobox.com> (raw)

Hi!

I'm excited about the partial evaluator.  However there is one error
I've found:

  (letrec ((fold (lambda (f x b null? car cdr)
                   (if (null? x)
                       b
                       (f (car x) (fold f (cdr x) b null? car cdr))))))
    (fold * x 1 zero? (lambda (x) x) (lambda (x) (- x 1))))

The expansion ends up with the body including lexical-refs to `car' and
`cdr', but they aren't bound in the letrec body.

Andy
-- 
http://wingolog.org/



             reply	other threads:[~2011-09-10 17:35 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-10 17:35 Andy Wingo [this message]
2011-09-10 23:05 ` peval error Ludovic Courtès
2011-09-13 17:04 ` Ludovic Courtès
2011-09-15 18:23   ` Andy Wingo
2011-09-15 21:44     ` Ludovic Courtès
2011-09-16 10:02       ` Ludovic Courtès
2011-09-17  0:43         ` Andy Wingo
2011-09-17 10:31           ` Ludovic Courtès
2011-09-17 14:52           ` Ludovic Courtès
2011-09-17 17:54             ` Andy Wingo
2011-09-18 10:00               ` bug#9542: " Ludovic Courtès
2011-09-18 21:05               ` Ludovic Courtès

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