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// { dg-do compile }

// { dg-options "-std=gnu++0x" }

// Copyright (C) 2010 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.

// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING3.  If not see

// <http://www.gnu.org/licenses/>.

#include <complex>

// User defined type, so that the primary std::complex template is used.

namespace numext

{

  struct ldld_base

  {

    long double one;

    long double two;

  };

  struct ldld_lit : public ldld_base

  { };

  struct ldld_nonlit : public ldld_base

  {

    ~ldld_nonlit() { }

  };

  bool

  operator<(const ldld_base __a, const ldld_base __b)

  { return __a.one < __b.one && __a.two < __b.two; }

  bool

  operator==(const ldld_base __a, const ldld_base __b)

  { return __a.one == __b.one && __a.two == __b.two; }

  ldld_base

  operator+=(const ldld_base __a, const ldld_base __b)

  { return ldld_base({ __a.one + __b.one, __a.two + __b.two}); }

  ldld_base

  operator-=(const ldld_base __a, const ldld_base __b)

  { return ldld_base({ __a.one - __b.one, __a.two - __b.two}); }

  ldld_base

  operator*=(const ldld_base __a, const ldld_base __b)

  { return ldld_base({ __a.one * __b.one, __a.two * __b.two}); }

  ldld_base

  operator/=(const ldld_base __a, const ldld_base __b)

  { return ldld_base({ __a.one / __b.one, __a.two / __b.two}); }

}

constexpr std::complex<numext::ldld_lit> lit; // ok

// constexpr std::complex<numext::ldld_nonlit> nonlit; // error