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From: "daniel.kruegler at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/55992] constexpr static member function not recognised in templated using statement
Date: Tue, 15 Jan 2013 22:01:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D55992

Daniel Kr=C3=BCgler <daniel.kruegler at googlemail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |daniel.kruegler at
                   |                            |googlemail dot com

--- Comment #1 from Daniel Kr=C3=BCgler <daniel.kruegler at googlemail dot =
com> 2013-01-15 22:01:16 UTC ---
Reduced example (free of library stuff):

template<unsigned N>
struct A {};

template<unsigned MaxP>
struct test
{
  static constexpr unsigned pole(unsigned P)
  { return P>MaxP? MaxP:P; }

  template<unsigned P>
  using my_array =3D A<pole(P)>;

  template<unsigned P>
  void do_something(my_array<P> const&, my_array<P>);
};

The problem also occurs in gcc 4.8.0 20130113 (experimental)