From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7558 invoked by alias); 9 Nov 2012 18:08:53 -0000 Received: (qmail 7499 invoked by uid 48); 9 Nov 2012 18:08:41 -0000 From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/55252] Caret diagnostic doesn't show useful location when macro clashes with name in system header Date: Fri, 09 Nov 2012 18:08:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Keywords: diagnostic X-Bugzilla-Severity: normal X-Bugzilla-Who: redi at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: CC Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-11/txt/msg00841.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55252 Jonathan Wakely changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |manu at gcc dot gnu.org --- Comment #1 from Jonathan Wakely 2012-11-09 18:08:40 UTC --- clang++ gets this right, printing the same thing with or without the system_header pragma, and swapping the locations of the error and the note: In file included from test.cc:2: ./header.h:1:5: error: expected unqualified-id int bar = 0; ^ test.cc:1:13: note: expanded from macro 'bar' #define bar 1 ^ 1 error generated. This makes much more sense.