Path: csiph.com!goblin1!goblin.stu.neva.ru!usenet.stanford.edu!not-for-mail From: Greg Wooledge Newsgroups: gnu.bash.bug Subject: Re: Number with sign is read as octal despite a leading 10# Date: Tue, 10 Jul 2018 11:04:30 -0400 Lines: 28 Approved: bug-bash@gnu.org Message-ID: References: <5fda6745-9bea-b881-76f0-21f2488df229@case.edu> NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: usenet.stanford.edu 1531235085 1235 208.118.235.17 (10 Jul 2018 15:04:45 GMT) X-Complaints-To: action@cs.stanford.edu To: bug-bash@gnu.org Envelope-to: bug-bash@gnu.org Mail-Followup-To: bug-bash@gnu.org Content-Disposition: inline In-Reply-To: <5fda6745-9bea-b881-76f0-21f2488df229@case.edu> User-Agent: NeoMutt/20170113 (1.7.2) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 139.137.100.1 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:14316 On Tue, Jul 10, 2018 at 11:00:36AM -0400, Chet Ramey wrote: > On 7/9/18 9:24 PM, Isaac Marcos wrote: > > > Bash Version: 4.4 > > Patch Level: 12 > > Release Status: release > > > > Description: > > A value inside an arithmetic expansion is processed as octal despite using > > a 10# preffix. > > An integer constant cannot contain a `+'. > > > > > Repeat-By: > > $ echo $((10#+0034)) > > 28 > > If anything, this is bash being too liberal in accepting constants that > begin with `base#'. There would be a good case for rejecting the `10#' > because it's missing the value. It also happens with negative values. I wish the original poster had shown that case as well. wooledg:~$ n=-019; echo "$((10#$n))" bash-5.0: 10#-019: value too great for base (error token is "019")