text: 
  // Copyright 2017 Peter Dimov.
  //
  // Distributed under the Boost Software License, Version 1.0.
  //
  // See accompanying file LICENSE_1_0.txt or copy at
  // http://www.boost.org/LICENSE_1_0.txt
  
  #include <boost/mp11/detail/config.hpp>
  
  #if BOOST_MP11_MSVC
  # pragma warning( disable: 4503 ) // decorated name length exceeded
  #endif
  
  #include <boost/mp11/function.hpp>
  #include <boost/mp11/algorithm.hpp>
  #include <boost/mp11/list.hpp>
  #include <boost/core/lightweight_test_trait.hpp>
  #include <type_traits>
  
  int main()
  {
      using boost::mp11::mp_same;
      using boost::mp11::mp_true;
      using boost::mp11::mp_false;
  
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<>, mp_true>));
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<void>, mp_true>));
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<void, void>, mp_true>));
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<void, void, void>, mp_true>));
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<void, void, void, void>, mp_true>));
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<void, void, void, void, void>, mp_true>));
  
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<void, int>, mp_false>));
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<void, void, int>, mp_false>));
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<void, void, void, int>, mp_false>));
      BOOST_TEST_TRAIT_TRUE((std::is_same<mp_same<void, void, void, void, int>, mp_false>));
  
      using boost::mp11::mp_repeat_c;
      using boost::mp11::mp_list;
      using boost::mp11::mp_apply;
  
      int const N = 1024;
  
      using L = mp_repeat_c<mp_list<void>, N>;
      using R = mp_apply<mp_same, L>;
  
      BOOST_TEST_TRAIT_TRUE((std::is_same<R, mp_true>));
  
      return boost::report_errors();
  }
  