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From: "daniel.kruegler at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/58820] lambda multiple inheritance operator() not ambiguous
Date: Mon, 21 Oct 2013 12:18:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D58820

--- Comment #1 from Daniel Kr=C3=BCgler <daniel.kruegler at googlemail dot =
com> ---
This looks like a more fundamental name lookup problem of gcc to me. It can=
 be
reproduced with function object types that are no lambda closures:

template <class... Fs>=20
struct overload_set : Fs...
{
  overload_set(Fs... f)
    : Fs(f)...
  {}=20=20
};

template <class... Fs>=20
overload_set<Fs...> overload(Fs... x)
{
  return overload_set<Fs...>(x...);
}

template<class T>
struct Closure=20
{
  void operator()(T) const {}
  using FPtr =3D void(*)(T);
  operator FPtr() const;
};

int main()
{
  double d =3D 10;=20
  overload(
      Closure<int>(),
      Closure<double>(),
      Closure<char>()=20
    )(d);
}
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From: "paolo.carlini at oracle dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/58820] lambda multiple inheritance operator() not ambiguous
Date: Mon, 21 Oct 2013 12:22:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58820

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-10-21
             Blocks|54367                       |
     Ever confirmed|0                           |1

--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Thanks Daniel. Could even be a duplicate then.