From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3815 invoked by alias); 26 Jun 2013 15:46:32 -0000 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 Received: (qmail 3766 invoked by uid 48); 26 Jun 2013 15:46:23 -0000 From: "bmerry at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/57728] Explicit template instantiation with defaulted method causes missing symbol Date: Wed, 26 Jun 2013 15:46:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 4.8.1 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: bmerry at gmail dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2013-06/txt/msg01601.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57728 --- Comment #2 from Bruce Merry --- (In reply to Jonathan Wakely from comment #1) > The explicit instantiation declaration suppresses the definition of > A::A() in defaulted.o, but the explicit instantiation definition > doesn't cause that symbol to be emitted in impl.o, so when that constructor > is not inlined there is no definition. That's more or less what I figured was happening. Can you clarify whether you think this a GCC bug or just me misunderstanding the language? Thanks.