GNU bug report logs - #21900
map is not continuation-safe

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Package: guile;

Reported by: Zefram <zefram <at> fysh.org>

Date: Fri, 13 Nov 2015 08:35:02 UTC

Severity: normal

Done: Andy Wingo <wingo <at> pobox.com>

Bug is archived. No further changes may be made.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Zefram <zefram <at> fysh.org>
To: bug-guile <at> gnu.org
Subject: map is not continuation-safe
Date: Fri, 13 Nov 2015 08:34:21 +0000

With Guile 2.0.11:

scheme@(guile-user)> (define cc #f)
scheme@(guile-user)> (map (lambda (v) (if (= v 0) (call/cc (lambda (c) (set! cc c) 0)) (+ v 1))) '(10 20 30 0 40 50 60))
$1 = (11 21 31 0 41 51 61)
scheme@(guile-user)> (cc 5)
$2 = (61 51 41 0 31 5 41 51 61)

It worked correctly in Guile 1.8.

-zefram
This bug report was last modified 8 years and 336 days ago.

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