From mboxrd@z Thu Jan  1 00:00:00 1970
From: Samuel Wales <samologist@gmail.com>
Subject: Re: refile too slow
Date: Tue, 24 Oct 2017 20:04:09 -0700
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To: Nicolas Goaziou <mail@nicolasgoaziou.fr>
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On 10/5/17, Samuel Wales <samologist@gmail.com> wrote:
> delete-dups seems suspicious but what do i know.  i wonder if
> cl-delete-duplicates is more efficient.

perhaps it has been made more efficient in new emacs versions than 24?

>
> (defun delete-dups (list)
>   "Destructively remove `equal' duplicates from LIST.
> Store the result in LIST and return it.  LIST must be a proper list.
> Of several `equal' occurrences of an element in LIST, the first
> one is kept."
>   (let ((tail list))
>     (while tail
>       (setcdr tail (delete (car tail) (cdr tail)))
>       (setq tail (cdr tail))))
>   list)
>


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