text: //===----------------------------------------------------------------------===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is dual licensed under the MIT and the University of Illinois Open
  // Source Licenses. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  // <iterator>
  
  // move_iterator
  
  // template <class U>
  //   requires HasAssign<Iter, const U&>
  //   move_iterator&
  //   operator=(const move_iterator<U>& u);
  
  // test requires
  
  #include <iterator>
  
  template <class It, class U>
  void
  test(U u)
  {
      const std::move_iterator<U> r2(u);
      std::move_iterator<It> r1;
      r1 = r2;
  }
  
  struct base {};
  struct derived {};
  
  int main()
  {
      derived d;
      test<base*>(&d);
  }
  