From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3201 invoked by alias); 22 Oct 2006 04:22:36 -0000 Received: (qmail 3062 invoked by uid 22791); 22 Oct 2006 04:22:35 -0000 X-Spam-Check-By: sourceware.org Received: from nevyn.them.org (HELO nevyn.them.org) (66.93.172.17) by sourceware.org (qpsmtpd/0.31.1) with ESMTP; Sun, 22 Oct 2006 04:22:33 +0000 Received: from drow by nevyn.them.org with local (Exim 4.54) id 1GbUr0-0007Y8-Be; Sun, 22 Oct 2006 00:22:30 -0400 Date: Sun, 22 Oct 2006 04:22:00 -0000 From: Daniel Jacobowitz To: Eli Zaretskii Cc: rodney.bates@wichita.edu, gdb@sourceware.org Subject: Re: breakpoint for accessing memory location Message-ID: <20061022042230.GA28995@nevyn.them.org> Mail-Followup-To: Eli Zaretskii , rodney.bates@wichita.edu, gdb@sourceware.org References: <4537DBC6.1030807@hccnet.nl> <20061019201214.GA32332@nevyn.them.org> <4537DEDC.5000008@hccnet.nl> <453A3758.5090602@wichita.edu> <20061021155125.GA9177@nevyn.them.org> <20061021223200.GA21012@nevyn.them.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.13 (2006-08-11) X-IsSubscribed: yes Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2006-10/txt/msg00189.txt.bz2 On Sun, Oct 22, 2006 at 06:17:58AM +0200, Eli Zaretskii wrote: > > Date: Sat, 21 Oct 2006 18:32:00 -0400 > > From: Daniel Jacobowitz > > Cc: rodney.bates@wichita.edu, gdb@sourceware.org > > > > > > So you are saying that "watch p - p" will also cause an error message > > > when p goes out of scope? > > > > Well, I just tried it; that's what I'd expect, and it seems to be what > > happens, also. > > That's silly, IMHO. Don't you think we should be smarter? Perhaps > some kind of expression optimizer could be devised to do better. I really don't think we should be optimizing expressions. One certainly could be devised - but it would look like "fold" in GCC, which is a huge and horrendously complex thing. -- Daniel Jacobowitz CodeSourcery