[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Help with recursive destructive function
From: |
Eric Abrahamsen |
Subject: |
Re: Help with recursive destructive function |
Date: |
Sun, 06 May 2018 20:01:02 -0700 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
Michael Heerdegen <address@hidden> writes:
> Eric Abrahamsen <address@hidden> writes:
>
>> Oh hang on, this doesn't work for all cases: the "by #'cdr" prevents
>> it from hitting the cdr of cons cells:
>>
>> (let ((tree '("c" (2 ("d" . 3)) (4 . "e") "f")))
>> (iter-do (_ (iter-tree-example tree)))
>> tree)
>>
>> --> ("C" (2 ("D" . 3)) (4 . "e") "F")
>
> Not only that (it's easy to fix), but I also realized that this approach
> doesn't circumvent the recursion issue. But if your data is not
> extremely deeply nested, recursion should not be such a problem.
Well... but... it might be deeply nested...
I'd like to have an iterative approach to work with as well -- it may
end up being slower, but if it's only a little slower, the slow-down is
worth the safety. If you have nothing to do on a Sunday afternoon (here)
and want to contribute a non-recursive iterative version, I would look
forward to testing!
Just saying,
Eric
- Help with recursive destructive function, Eric Abrahamsen, 2018/05/04
- Re: Help with recursive destructive function, Stefan Monnier, 2018/05/04
- Re: Help with recursive destructive function, Eric Abrahamsen, 2018/05/06
- Re: Help with recursive destructive function, Michael Heerdegen, 2018/05/06
- Re: Help with recursive destructive function,
Eric Abrahamsen <=
- Re: Help with recursive destructive function, Clément Pit-Claudel, 2018/05/07
- Re: Help with recursive destructive function, Michael Heerdegen, 2018/05/07
- Re: Help with recursive destructive function, Stefan Monnier, 2018/05/07
- Re: Help with recursive destructive function, Eric Abrahamsen, 2018/05/07
- Re: Help with recursive destructive function, Michael Heerdegen, 2018/05/08
- Re: Help with recursive destructive function, Eric Abrahamsen, 2018/05/08
- Re: Help with recursive destructive function, Clément Pit-Claudel, 2018/05/08
- Re: Help with recursive destructive function, Eric Abrahamsen, 2018/05/08
- Re: Help with recursive destructive function, Michael Heerdegen, 2018/05/09
- Re: Help with recursive destructive function, Michael Heerdegen, 2018/05/10