* bug#56416: 29.0.50; cl-loop cl-psetq problem
@ 2022-07-06 5:01 Sean Whitton
2022-07-06 11:41 ` Lars Ingebrigtsen
0 siblings, 1 reply; 5+ messages in thread
From: Sean Whitton @ 2022-07-06 5:01 UTC (permalink / raw)
To: 56416
Evaluating
(cl-loop with list = '(1 2 3 4)
for l in list
for x = l and y = l
collect x)
yields (1 1 2 3) but it should yield (1 2 3 4).
--
Sean Whitton
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#56416: 29.0.50; cl-loop cl-psetq problem
2022-07-06 5:01 bug#56416: 29.0.50; cl-loop cl-psetq problem Sean Whitton
@ 2022-07-06 11:41 ` Lars Ingebrigtsen
2022-07-06 16:06 ` Mattias Engdegård
0 siblings, 1 reply; 5+ messages in thread
From: Lars Ingebrigtsen @ 2022-07-06 11:41 UTC (permalink / raw)
To: Sean Whitton; +Cc: Mattias Engdegård, 56416
Sean Whitton <spwhitton@spwhitton.name> writes:
> Evaluating
>
> (cl-loop with list = '(1 2 3 4)
>
> for l in list
> for x = l and y = l
>
> collect x)
>
> yields (1 1 2 3) but it should yield (1 2 3 4).
It's the `and' that's triggering this bug, I guess?
I seem to vaguely recall Mattias doing something about these corner
cases -- I may totally misremember, but I've added him to the CCs
anyway; perhaps he has a comment.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#56416: 29.0.50; cl-loop cl-psetq problem
2022-07-06 11:41 ` Lars Ingebrigtsen
@ 2022-07-06 16:06 ` Mattias Engdegård
2022-07-07 7:53 ` Lars Ingebrigtsen
0 siblings, 1 reply; 5+ messages in thread
From: Mattias Engdegård @ 2022-07-06 16:06 UTC (permalink / raw)
To: Lars Ingebrigtsen
Cc: Tino Calancha, Noam Postavsky, Philipp Stephani, dick,
Sean Whitton, 56416
6 juli 2022 kl. 13.41 skrev Lars Ingebrigtsen <larsi@gnus.org>:
> I seem to vaguely recall Mattias doing something about these corner
> cases
Were you thinking of 8e3868125c? That was only an optimisation for the non-parallel case, and shouldn't affect this problem.
Past work on this particular feature was done in bug#29799 and bug#40727; this bug might actually be a dup of bug#6583 (?). Better ask those who did the work at the time.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#56416: 29.0.50; cl-loop cl-psetq problem
2022-07-06 16:06 ` Mattias Engdegård
@ 2022-07-07 7:53 ` Lars Ingebrigtsen
2022-07-07 8:07 ` Mattias Engdegård
0 siblings, 1 reply; 5+ messages in thread
From: Lars Ingebrigtsen @ 2022-07-07 7:53 UTC (permalink / raw)
To: Mattias Engdegård
Cc: Tino Calancha, Noam Postavsky, Philipp Stephani, dick,
Sean Whitton, 56416
Mattias Engdegård <mattiase@acm.org> writes:
>> I seem to vaguely recall Mattias doing something about these corner
>> cases
>
> Were you thinking of 8e3868125c? That was only an optimisation for the
> non-parallel case, and shouldn't affect this problem.
I probably just misremembered altogether...
> Past work on this particular feature was done in bug#29799 and
> bug#40727; this bug might actually be a dup of bug#6583 (?). Better
> ask those who did the work at the time.
Ah, yes, this looks like a duplicate of 6583, so I'll merge the two.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#56416: 29.0.50; cl-loop cl-psetq problem
2022-07-07 7:53 ` Lars Ingebrigtsen
@ 2022-07-07 8:07 ` Mattias Engdegård
0 siblings, 0 replies; 5+ messages in thread
From: Mattias Engdegård @ 2022-07-07 8:07 UTC (permalink / raw)
To: Lars Ingebrigtsen
Cc: Tino Calancha, Noam Postavsky, Philipp Stephani, dick,
Sean Whitton, 56416
7 juli 2022 kl. 09.53 skrev Lars Ingebrigtsen <larsi@gnus.org>:
> I probably just misremembered altogether...
Thanks for notifying me anyway -- the problem seems to stem from a confusion between iteration stepping vs materialising the variable value. It's a mess and I'm probably not the right man to fix it (no fan of cl-loop in general).
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-07-07 8:07 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-07-06 5:01 bug#56416: 29.0.50; cl-loop cl-psetq problem Sean Whitton
2022-07-06 11:41 ` Lars Ingebrigtsen
2022-07-06 16:06 ` Mattias Engdegård
2022-07-07 7:53 ` Lars Ingebrigtsen
2022-07-07 8:07 ` Mattias Engdegård
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