From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-402324-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 13317 invoked by alias); 1 Oct 2012 06:43:48 -0000
Received: (qmail 13259 invoked by uid 48); 1 Oct 2012 06:43:27 -0000
From: "leonid at volnitsky dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/54764] New: In class initialization of non-static lambda member can't be used in class with default template paramer
Date: Mon, 01 Oct 2012 06:43:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: leonid at volnitsky dot com
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:
Message-ID: <bug-54764-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2012-10/txt/msg00000.txt.bz2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D54764

             Bug #: 54764
           Summary: In class initialization of non-static lambda member
                    can't be used in class with default template paramer
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: leonid@volnitsky.com


Clang-3.2 compiles (FWIW), but rejected by GCC 4.7.1 and 4.8:

------------------------------------------------------------------
#include <functional>

template<class T=3Dvoid>
struct  c{
    std::function<int(int)> f =3D [](int i){return i+i;};
};

int main() {}
-------------------------------------------------------------------

Error message:

t.cc:6:31: error: default argument for template parameter for class enclosi=
ng
=E2=80=98struct __lambda0=E2=80=99
  function<int(int)> f =3D [](int i){return i+i;};
                               ^