From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-256368-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 20248 invoked by alias); 11 Jul 2008 09:57:30 -0000
Received: (qmail 20116 invoked by uid 48); 11 Jul 2008 09:56:47 -0000
Date: Fri, 11 Jul 2008 09:57:00 -0000
Subject: [Bug c++/36805]  New: compilation fails when pointer to template-functions are returned by ?-operator
X-Bugzilla-Reason: CC
Message-ID: <bug-36805-15404@http.gcc.gnu.org/bugzilla/>
Reply-To: gcc-bugzilla@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org
From: "rbuergel at web dot de" <gcc-bugzilla@gcc.gnu.org>
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: 2008-07/txt/msg01091.txt.bz2

The following program fails to compile:

template<typename T> void f()
{}

void g1() {}
void g2() {}

typedef void(*ptrType)();

int main(int argc, char** argv)
{
        ptrType p = argc == 1 ? &f<char> : &f<int>; //<-- error
        ptrType p2 = argc == 1 ? &g1 : &g2;

        ptrType p1;
        if (argc== 1)
                p1 = &f<char>;
        else
                p1 = &f<int>;
}

fptr.cpp:11: error: address of overloaded function with no contextual type
information

As f<char> and f<int> are the same pointer-type, this shouldn't fail. It
doesn't fail for non-template-functions and it aslo doesn't fail if an
if/else-clause is used.


tried with gcc-4.3.1, 4.2.4 and 4.1.2 on x86_64 and 4.2.3 on powerpc-uclibc


-- 
           Summary: compilation fails when pointer to template-functions are
                    returned by ?-operator
           Product: gcc
           Version: 4.2.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rbuergel at web dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36805