From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Andy Sonnenburg <andy22286@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: Binary Search Tree and Treap Functions bst-assq and treap-put
Date: Sun, 04 Dec 2016 12:04:19 -0500 [thread overview]
Message-ID: <jwvmvgbprl7.fsf-monnier+Inbox@gnu.org> (raw)
In-Reply-To: <CAHtDYY9SzUt9_DCXuLUJY7xe2p0yJ9cgx7taKjMyZLErp2=2Vg@mail.gmail.com> (Andy Sonnenburg's message of "Sun, 4 Dec 2016 07:14:26 -0500")
> That's too bad (I mean, its good for performance, but unfortunate one of
> the use cases doesn't exist). However, the treap functions may still be of
> general use. Let me know if there is any interest. They are documented
> and tested. They fill a gap between alists (persistent, linear lookup) and
> hash tables (ephemeral, constant lookup) by being persistent while
> providing average case logarithmic lookup.
Is it written in C or Elisp? If it's Elisp, then we definitely would
welcome it into GNU ELPA (there is already an avl-tree implementation in
Emacs itself at lisp/emacs-lisp/avl-tree.el, but the more the merrier).
If it's written C, I'll let others decide whether we want to include it.
Stefan
next prev parent reply other threads:[~2016-12-04 17:04 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-04 1:42 Binary Search Tree and Treap Functions bst-assq and treap-put Andy Sonnenburg
2016-12-04 4:33 ` Stefan Monnier
[not found] ` <CAHtDYY-xis2R4Nbvq_8Ht0nKsm6KjGqW=NSC7O3+5FvNF9w+Dg@mail.gmail.com>
[not found] ` <CAHtDYY9__BVOAs+vX=Tj8Bf31X6-Duv3f9MS8vcGwsnO2x74+w@mail.gmail.com>
2016-12-04 12:14 ` Andy Sonnenburg
2016-12-04 17:04 ` Stefan Monnier [this message]
2016-12-04 17:13 ` Andy Sonnenburg
2016-12-04 17:39 ` Andy Sonnenburg
2016-12-04 17:41 ` Eli Zaretskii
2016-12-12 6:15 ` John Wiegley
2016-12-12 12:56 ` Stefan Monnier
2016-12-12 16:46 ` John Wiegley
2016-12-12 16:58 ` Stefan Monnier
2016-12-12 17:06 ` John Wiegley
2016-12-12 17:29 ` Stefan Monnier
2017-10-22 16:35 ` Noam Postavsky
2017-10-22 16:44 ` Andreas Schwab
2017-10-22 16:44 ` Stefan Monnier
2017-10-22 17:12 ` Noam Postavsky
2017-10-23 0:37 ` Stefan Monnier
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