From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Thierry Volpiatto Newsgroups: gmane.emacs.devel Subject: Re: can `shuffle-vector' be moved? Date: Fri, 13 May 2011 08:19:00 +0200 Message-ID: <87ei43dsx7.fsf@gmail.com> References: <87pqnny9lk.fsf@lifelogs.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1305267583 22369 80.91.229.12 (13 May 2011 06:19:43 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 13 May 2011 06:19:43 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri May 13 08:19:38 2011 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QKlir-0007ul-GI for ged-emacs-devel@m.gmane.org; Fri, 13 May 2011 08:19:37 +0200 Original-Received: from localhost ([::1]:43933 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QKlir-0005Vs-05 for ged-emacs-devel@m.gmane.org; Fri, 13 May 2011 02:19:37 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:60734) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QKliU-0004sZ-5x for emacs-devel@gnu.org; Fri, 13 May 2011 02:19:15 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QKliT-0005J6-AP for emacs-devel@gnu.org; Fri, 13 May 2011 02:19:14 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:60179) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QKliT-0005J1-4k for emacs-devel@gnu.org; Fri, 13 May 2011 02:19:13 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1QKliS-0007ks-0e for emacs-devel@gnu.org; Fri, 13 May 2011 08:19:12 +0200 Original-Received: from 65.77.197-77.rev.gaoland.net ([77.197.77.65]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 13 May 2011 08:19:12 +0200 Original-Received: from thierry.volpiatto by 65.77.197-77.rev.gaoland.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 13 May 2011 08:19:12 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 33 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: 65.77.197-77.rev.gaoland.net User-Agent: Gnus/5.110018 (No Gnus v0.18) Emacs/24.0.50 (gnu/linux) Cancel-Lock: sha1:HgDgI4HlXaONX6bDCLRXU+w5IBU= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 80.91.229.12 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:139348 Archived-At: Ted Zlatanov writes: > I don't know where it should live, but cookie1.el doesn't seem like the > right place. > > It should be documented in "(elisp) Vector Functions" as well. > > Let me know if I should do this, please. > > Also this loop call from Pascal Bourguignon is a nice CL alternative to > `shuffle-vector', though it uses the same algorithm: > > (defun shuffle (vector) > "Re-orders randomly the vector." > (loop > for i from (1- (length vector)) downto 1 > do (rotatef (aref vector i) (aref vector (random i))))) Nice. Why is this limited to vectors? with elt it could work also with lists. > Can it go into cl-macs.el? > > Thanks > Ted > > > -- A+ Thierry Get my Gnupg key: gpg --keyserver pgp.mit.edu --recv-keys 59F29997