From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David Kastrup Newsgroups: gmane.lisp.guile.devel Subject: Re: Growable arrays? Date: Mon, 11 Jun 2012 14:12:53 +0200 Organization: Organization?!? Message-ID: <87aa0aqc6y.fsf@fencepost.gnu.org> References: <87hauku0mb.fsf@fencepost.gnu.org> <87fwa2dxmh.fsf@pobox.com> <87mx4aqijf.fsf@fencepost.gnu.org> <87zk8accoq.fsf@pobox.com> <87ehpmqcs7.fsf@fencepost.gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1339416819 17701 80.91.229.3 (11 Jun 2012 12:13:39 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 11 Jun 2012 12:13:39 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Mon Jun 11 14:13:37 2012 Return-path: Envelope-to: guile-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Se3V0-0000Zs-Mi for guile-devel@m.gmane.org; Mon, 11 Jun 2012 14:13:34 +0200 Original-Received: from localhost ([::1]:40036 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Se3V0-0004AR-6g for guile-devel@m.gmane.org; Mon, 11 Jun 2012 08:13:34 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:50896) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Se3Uo-000478-QT for guile-devel@gnu.org; Mon, 11 Jun 2012 08:13:32 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Se3Ug-0000FM-Hs for guile-devel@gnu.org; Mon, 11 Jun 2012 08:13:22 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:58299) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Se3Ug-0000FC-Ax for guile-devel@gnu.org; Mon, 11 Jun 2012 08:13:14 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Se3UW-0007u2-Rm for guile-devel@gnu.org; Mon, 11 Jun 2012 14:13:04 +0200 Original-Received: from p508eb788.dip.t-dialin.net ([80.142.183.136]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 11 Jun 2012 14:13:04 +0200 Original-Received: from dak by p508eb788.dip.t-dialin.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 11 Jun 2012 14:13:04 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 24 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: p508eb788.dip.t-dialin.net X-Face: 2FEFf>]>q>2iw=B6, xrUubRI>pR&Ml9=ao@P@i)L:\urd*t9M~y1^:+Y]'C0~{mAl`oQuAl \!3KEIp?*w`|bL5qr,H)LFO6Q=qx~iH4DN; i"; /yuIsqbLLCh/!U#X[S~(5eZ41to5f%E@'ELIi$t^ Vc\LWP@J5p^rst0+('>Er0=^1{]M9!p?&:\z]|;&=NP3AhB!B_bi^]Pfkw User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1.50 (gnu/linux) Cancel-Lock: sha1:zf+ZVx+8yuNjaKlmHmXgFtg1SrI= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Original-Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.devel:14593 Archived-At: David Kastrup writes: > Andy Wingo writes: > >> Hi, >> >> On Mon 11 Jun 2012 11:55, David Kastrup writes: >> >>> Tables are a superset of what I need here. I need the "growable vector" >>> aspect, not the "hash part" aspect. Guile 1.8 only offers subsets: >>> "growable" does not come together with "vector". >> >> Why not just make your own growable vectors, then? It will be just as >> efficient. > > Sure, I will. A native implementation would be able to benefit from > storage layout conditions that would, in some cases, allow extending the > array without allocating a new memory range, so it _can_ be done. P.S.: I still need to look at vlists. They might already address this issue, though I can't use them in Guile 1.8. -- David Kastrup