From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.help Subject: Re: Why does using aset sometimes output raw bytes? Date: Sun, 09 Dec 2018 20:55:49 +0200 Message-ID: <83mupe34y2.fsf@gnu.org> References: <87h8fmohmo.fsf@gmx.net> <83y38y3exe.fsf@gnu.org> <87d0qaog92.fsf@gmx.net> <83r2eq39q7.fsf@gnu.org> <87wooimwr9.fsf@gmx.net> <83pnua384o.fsf@gnu.org> <87pnuamt5r.fsf@gmx.net> NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1544381680 32738 195.159.176.226 (9 Dec 2018 18:54:40 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 9 Dec 2018 18:54:40 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Dec 09 19:54:36 2018 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gW4Dr-0008Q4-Or for geh-help-gnu-emacs@m.gmane.org; Sun, 09 Dec 2018 19:54:35 +0100 Original-Received: from localhost ([::1]:56307 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gW4Fy-0004Ai-2u for geh-help-gnu-emacs@m.gmane.org; Sun, 09 Dec 2018 13:56:46 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:54167) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gW4FR-0004AR-BE for help-gnu-emacs@gnu.org; Sun, 09 Dec 2018 13:56:13 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gW4FL-0001eX-KA for help-gnu-emacs@gnu.org; Sun, 09 Dec 2018 13:56:13 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:45563) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gW4FI-0001YE-Ij for help-gnu-emacs@gnu.org; Sun, 09 Dec 2018 13:56:05 -0500 Original-Received: from [176.228.60.248] (port=4895 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1gW4FI-0003nQ-34 for help-gnu-emacs@gnu.org; Sun, 09 Dec 2018 13:56:04 -0500 In-reply-to: <87pnuamt5r.fsf@gmx.net> (message from Stephen Berman on Sun, 09 Dec 2018 19:50:08 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:118948 Archived-At: > From: Stephen Berman > Cc: help-gnu-emacs@gnu.org > Date: Sun, 09 Dec 2018 19:50:08 +0100 > > I was experimenting with aset to make random permutations of a string > and didn't understand why there were sometimes raw bytes in the result > (which also led to args-out-of-range errors), but using (make-string len > 128) as the container for the permutations prevents that. And with your > above explanations I now think I understand why. Yes, you need to start with a multibyte string to do this kind of thing safely.