From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stephen Berman Newsgroups: gmane.emacs.bugs Subject: bug#32605: 26.1; (random) never returns negative Date: Sat, 01 Sep 2018 19:34:35 +0200 Message-ID: <87zhx1ktp0.fsf@gmx.net> References: <855zzpf86u.fsf@gmail.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1535824266 21627 195.159.176.226 (1 Sep 2018 17:51:06 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 1 Sep 2018 17:51:06 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: f.j.wright@live.co.uk, 32605@debbugs.gnu.org To: Francis Wright Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Sep 01 19:51:02 2018 Return-path: Envelope-to: geb-bug-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 1fwA34-0005Wl-5P for geb-bug-gnu-emacs@m.gmane.org; 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Sat, 01 Sep 2018 19:34:36 +0200 In-Reply-To: <855zzpf86u.fsf@gmail.com> (Francis Wright's message of "Sat, 01 Sep 2018 18:18:01 +0100") X-Provags-ID: V03:K1:MFBPEarz1yNUvgtEQ0b5i7TBa90PVkBCFiasdxhdQA1ehTukdAh UOQRg1JvBmLfBazWUHpEvfzThvhMElu6ICxrXI6WZA5UuWbORN8EK/dDUMcz0Fo99m1jXS/ uuTN/i0cZApfjnPDvaUJNWgoymHN37lYOfRKJzuteB/4VxOG01xkt/WwR5dpKAvqw0iLOl1 kOvx+TQhefaiosm0Y+Jxw== X-UI-Out-Filterresults: notjunk:1;V01:K0:HEauNe6kW3M=:nlStselhUoM9lofwZfPgZA JYHLdGeGA4decHpo5XqZFgKMC3dCDnCt45J4/1bD8NBhd2m+VXJIQ5waWQrate8eREd8OpjQC GEpTb//SMm8xFlNAMlF4zRieAk9bBsa61A9uec8R5YCSF+b81hgVtdbY5Jn75URlNTmgWVvru vYQ5WVwunbk80GrME+bWnspoRu3xFhmytfWjbB42TnyzqdSmRe3ADAi4ezdyxRBoaGb6g6cIi RT9p8hr6ZQpWbSkXhYm9ePuhFMPL1iC11RALn3d8npo/4/uLFkKb/vhHAqoeuGEedVED/uYr4 ckp8I1l2sXBJTzHLpRleG8yq0yfQIQzAck0FbyN/bsRwZToc2ZS91Qvj9Y/fRhMG4wMugYESk 6/dcVsR9WuFdZD5VajBS4mwCWGMNf86yl7gpaUofBhRSyuXMilY3kv9oUdjr60FZKhBGeZExW Pa7G48gKZ2ZrGGfh9BZskt7COiybNkZyF8YzyV+LQsd+DkZibeg+modr/uflqp83r4gPg7G9U ki8aYsFE7afuBPu9BsdKI4gzvj9Avrfsab9ZEAx7Mtn2Yqf0hwm0SCSNEYsYKdWuUEuvoNSeO 3RsxtDG29mjv75gVo+A6aobX75MMvEDDWwf2eIoRTbuBmOherT2e1LdY8nWyHpA/inO8FBjhY tzy3kAhfTihRSueDtz4Vm0St6VP8wqZ9yjD64Xs5OH56yUJgmD/TytBc0GfSq0Q1xBKTZgkyw gX/FPf82NWd9x5OdBrs0iOdMKmnS/O53/GuzXhXblwribYSv+LmZUnHIXbuvL2Pz0aLaMWXh X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:149950 Archived-At: On Sat, 01 Sep 2018 18:18:01 +0100 Francis Wright wrote: > According to my reading of both the documentation for the function > random and its description in the manual, if it is called with no > argument then "the value might be any integer representable in Lisp, > i.e., an integer between =E2=80=98most-negative-fixnum=E2=80=99 and > =E2=80=98most-positive-fixnum=E2=80=99". Therefore, it should return a n= egative integer > half the time, but I have never yet seen it return a negative value. So > either the documentation or the implementation is wrong. For what it's > worth, I would prefer the documented behaviour over the current actual > behaviour. > > > In GNU Emacs 26.1 (build 1, x86_64-w64-mingw32) > of 2018-05-30 built on CIRROCUMULUS > Repository revision: 07f8f9bc5a51f5aa94eb099f3e15fbe0c20ea1ea > Windowing system distributor 'Microsoft Corp.', version 10.0.17134 Prompted by this report, I just ran `M-: (random)' twice, with these results: 1407814790132564328 (#o116114401367331100550, #x13899017bb648168) -5902216973509885 (#o-247600437205762375, #x-14f808fa17e4fd) This was on a build from current master under GNU/Linux Steve Berman