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bug#21900: map is not continuation-safe
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From: |
Andy Wingo |
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Subject: |
bug#21900: map is not continuation-safe |
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Date: |
Mon, 20 Jun 2016 18:01:35 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
On Fri 13 Nov 2015 09:34, Zefram <address@hidden> writes:
> 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.
"Fixed" in the upcoming 2.2 release, though I think we consider this
more of an implementation detail than a bug.
Andy
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