From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13735 invoked by alias); 22 Feb 2012 15:39:05 -0000 Received: (qmail 13719 invoked by uid 22791); 22 Feb 2012 15:39:04 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO sourceware.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 22 Feb 2012 15:38:17 +0000 From: "tromey at redhat dot com" To: gdb-prs@sourceware.org Subject: [Bug exp/13206] support gcc's typeof Date: Wed, 22 Feb 2012 15:39:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gdb X-Bugzilla-Component: exp X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: tromey at redhat dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: CC Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gdb-prs-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-prs-owner@sourceware.org X-SW-Source: 2012-q1/txt/msg00314.txt.bz2 http://sourceware.org/bugzilla/show_bug.cgi?id=13206 Tom Tromey changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tromey at redhat dot com --- Comment #1 from Tom Tromey 2012-02-22 15:36:58 UTC --- One wrinkle is that there's no way to tell if the source was compiled with GNU extensions. So, we can't simply parse "typeof" as a token. And, even the heuristic of looking up a symbol named "typeof" may fail if different source files were compiled with different options. __typeof__ seems reasonably easy, though there is the question of whether we'd want a new OP_TYPEOF. If not, it simplifies parsing, but you could have sizeof($x) != sizeof(typeof($x)) if $x changes between parsing and evaluation. -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.