From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6059 invoked by alias); 12 Jan 2007 08:18:53 -0000 Received: (qmail 6018 invoked by uid 48); 12 Jan 2007 08:18:40 -0000 Date: Fri, 12 Jan 2007 08:18:00 -0000 Message-ID: <20070112081840.6017.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug c++/23643] Incorrect conversion from derived to empty base class In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "jbuck at gcc dot gnu dot org" 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: 2007-01/txt/msg01000.txt.bz2 ------- Comment #3 from jbuck at gcc dot gnu dot org 2007-01-12 08:18 ------- Andrew is right, this isn't a bug, and is in fact required by the ABI. See http://www.codesourcery.com/cxx-abi/abi.html#class-types, section II, subsection 3. "First, attempt to place D at offset 0." No rule prevents doing this, so that is where it lands. -- jbuck at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |RESOLVED Resolution| |INVALID http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23643