From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-383313-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 23481 invoked by alias); 13 Feb 2012 09:26:53 -0000
Received: (qmail 23471 invoked by uid 22791); 13 Feb 2012 09:26:52 -0000
X-SWARE-Spam-Status: No, hits=-2.9 required=5.0	tests=ALL_TRUSTED,AWL,BAYES_00
X-Spam-Check-By: sourceware.org
Received: from localhost (HELO gcc.gnu.org) (127.0.0.1)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 13 Feb 2012 09:26:40 +0000
From: "daniel.kruegler at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/52224] [C++0x] Generic operator gets pulled into compile-time expression
Date: Mon, 13 Feb 2012 09:26:00 -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:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: daniel.kruegler at googlemail 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-52224-4-YWoOTv2kOv@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-52224-4@http.gcc.gnu.org/bugzilla/>
References: <bug-52224-4@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: 2012-02/txt/msg01247.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D52224

--- Comment #2 from Daniel Kr=C3=BCgler <daniel.kruegler at googlemail dot =
com> 2012-02-13 09:26:34 UTC ---
I condensed the test case further down to the following:

//---
template<bool, class> struct enable_if {};
template<class T> struct enable_if<true, T> { typedef T type; };

template <typename T> struct is_mine { enum { value =3D false }; };

template <typename E1, typename E2>
struct either_is_mine { static const bool value =3D is_mine<E1>::value ||
is_mine<E2>::value; };

template <typename E1, typename E2>
typename enable_if<either_is_mine<E1, E2>::value, int>::type
operator||(E1 e1, E2 e2);

template <typename E1, typename E2>
typename enable_if<either_is_mine<E1, E2>::value, int>::type
test(E1 e1, E2 e2);

const int n =3D sizeof(test(1, 2));
//---