From owner-freebsd-arch@FreeBSD.ORG Tue Feb 1 23:04:43 2005 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BFDA416A4E0 for ; Tue, 1 Feb 2005 23:04:43 +0000 (GMT) Received: from mail25.sea5.speakeasy.net (mail25.sea5.speakeasy.net [69.17.117.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4F79B43D60 for ; Tue, 1 Feb 2005 23:04:43 +0000 (GMT) (envelope-from jmg@hydrogen.funkthat.com) Received: (qmail 30519 invoked from network); 1 Feb 2005 23:04:43 -0000 Received: from gate.funkthat.com (HELO hydrogen.funkthat.com) ([69.17.45.168]) (envelope-sender ) by mail25.sea5.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 1 Feb 2005 23:04:43 -0000 Received: from hydrogen.funkthat.com (ahsrqx@localhost.funkthat.com [127.0.0.1])j11N4gGH057585; Tue, 1 Feb 2005 15:04:42 -0800 (PST) (envelope-from jmg@hydrogen.funkthat.com) Received: (from jmg@localhost) by hydrogen.funkthat.com (8.12.10/8.12.10/Submit) id j11N4bin057584; Tue, 1 Feb 2005 15:04:37 -0800 (PST) Date: Tue, 1 Feb 2005 15:04:37 -0800 From: John-Mark Gurney To: Paul Richards Message-ID: <20050201230437.GD19624@funkthat.com> Mail-Followup-To: Paul Richards , arch@freebsd.org References: <20050128173327.GI61409@myrddin.originative.co.uk> <20050131102630.GJ61409@myrddin.originative.co.uk> <20050201180624.GB19624@funkthat.com> <20050201190416.GG61409@myrddin.originative.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050201190416.GG61409@myrddin.originative.co.uk> User-Agent: Mutt/1.4.1i X-Operating-System: FreeBSD 4.2-RELEASE i386 X-PGP-Fingerprint: B7 EC EF F8 AE ED A7 31 96 7A 22 B3 D8 56 36 F4 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html cc: arch@freebsd.org Subject: Re: c99/c++ localised variable definition X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: John-Mark Gurney List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Feb 2005 23:04:43 -0000 Paul Richards wrote this message on Tue, Feb 01, 2005 at 19:04 +0000: > On Tue, Feb 01, 2005 at 10:06:24AM -0800, John-Mark Gurney wrote: > > Paul Richards wrote this message on Mon, Jan 31, 2005 at 10:26 +0000: > > > > [...] > > > > > I think the loop usage though is one clear example where it is > > > clearer. I think there are others as well; where the usage of the > > > variable is clearly localised it is much easier to see a local > > > definition than to have to jump back and forth to find out what > > > variables are. > > > > I personally think it isn't. One thing that I do in python all to > > regularly (because it lacks variable declarations), is attempt to do: > > for i in foo: > > for j in bar: > > for i in baz: > > That would work fine with c99. Depends upon your definition of working fine.. :) it doesn't work fine if you do: for i in foo: for j in bar: for i in baz: pass print i When the print i is suppose to return the element from foo, not baz, because you later added baz because of fixing another bug.. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."