text: // { dg-do compile { target c++11 } }
  // 2009-11-12  Paolo Carlini  <paolo.carlini@oracle.com>
  //
  // Copyright (C) 2009-2017 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 <utility>
    
  template<typename From, typename To>
    struct is_convertible_mini
    {
    private:
      typedef char one;
      typedef struct { char arr[2]; } two;
  
      static one test(To);
      static two test(...);
  
    public:
      static const bool value = sizeof(test(std::declval<From>())) == 1;
  };
  
  template<typename From, typename To>
    const bool is_convertible_mini<From, To>::value;
  
  void test01()
  {
    static_assert(is_convertible_mini<int*, const int*>::value, "#1");
    static_assert(!is_convertible_mini<const void*, void*>::value, "#2");
    static_assert(is_convertible_mini<float, double>::value, "#3");
    static_assert(!is_convertible_mini<bool, int*>::value, "#4");
    static_assert(is_convertible_mini<int(&)(int), int(*)(int)>::value, "#5");
    static_assert(!is_convertible_mini<void*, int*>::value, "#6");
  }
  