[debbugs-tracker] bug#14347: closed (reset, shift, continuation values truncated inconsistently)

[GNU bug Tracking System]

Your message dated Mon, 20 Jun 2016 23:06:59 +0200
with message-id <address@hidden>
and subject line Re: bug#14347: reset, shift, continuation values truncated 
inconsistently
has caused the debbugs.gnu.org bug report #14347,
regarding reset, shift, continuation values truncated inconsistently
to be marked as done.

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-- 
14347: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=14347
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> --- Begin Message ---
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>
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> Subject: 
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> reset, shift, continuation values truncated inconsistently
>
>
>
>
> Date: 
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> 04 May 2013 10:47:15 +0300
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> User-agent: 
>
> Gnus/5.09 (Gnus v5.9.0) Emacs/21.3
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>
>
>
> Hi, the following seems at least inconsistent to
> me and possibly unintended: I believe it
> demonstrates that the continuation captured by
> `shift' passes all its values to its continuation
> when it's called directly, but truncates them to
> the first value when it's bound to a variable
> outside the reset expression and then called.
>
> The documentation for reset and shift in the
> manual does not quite say, but I believe the
> captured continuation in these examples should be
> the continuation of the shift expression inside
> the reset expression, that is, it should simply
> return the three values in all cases.
>
> GNU Guile 2.0.5-deb+1-3
> Copyright (C) 1995-2012 Free Software Foundation, Inc.
> ...
> Enter `,help' for help.
> scheme@(guile-user)> (use-modules (ice-9 control))
> scheme@(guile-user)> (reset (shift k (k)) (values 3.1 2 3))
> $1 = 3.1
> $2 = 2
> $3 = 3
> scheme@(guile-user)> ((reset (shift k k) (values 3.1 2 3)))
> $4 = 3.1
> $5 = 2
> $6 = 3
> scheme@(guile-user)> (let ((k (reset (shift k k) (values 3.1 2 3)))) (k))
> $7 = 3.1
> scheme@(guile-user)> (define k (reset (shift k k) (values 3.1 2 3)))
> scheme@(guile-user)> (k)
> $8 = 3.1
> scheme@(guile-user)> (k)
> $9 = 3.1
>
> (I installed guile-2.0 with apt-get on Ubuntu and got this.)
>
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#14347: reset, shift, continuation values truncated inconsistently
>
>
>
>
> Date: 
>
> Mon, 20 Jun 2016 23:06:59 +0200
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)
>
>
>
>
> On Sat 04 May 2013 09:47, Jussi Piitulainen <address@hidden> writes:
>
> > Hi, the following seems at least inconsistent to
> > me and possibly unintended: I believe it
> > demonstrates that the continuation captured by
> > `shift' passes all its values to its continuation
> > when it's called directly, but truncates them to
> > the first value when it's bound to a variable
> > outside the reset expression and then called.
>
> Thank you for the report, and apologies for taking so long to fix it!
> Fixed in a192c336a22b8c9ac354e88c2f2b317dff22b8c9 on stable-2.0.  2.1.3
> already had it fixed, but by accident.
>
> Andy
>
>
> --- End Message ---