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.
  //
  //===----------------------------------------------------------------------===//
  
  // type_traits
  
  // aligned_union<size_t Len, class ...Types>
  
  #include <type_traits>
  
  int main()
  {
  #ifndef _LIBCPP_HAS_NO_VARIADICS
      {
      typedef std::aligned_union<10, char >::type T1;
  #if _LIBCPP_STD_VER > 11
      static_assert(std::is_same<std::aligned_union_t<10, char>, T1>::value, "" );
  #endif
      static_assert(std::alignment_of<T1>::value == 1, "");
      static_assert(sizeof(T1) == 10, "");
      }
      {
      typedef std::aligned_union<10, short >::type T1;
  #if _LIBCPP_STD_VER > 11
      static_assert(std::is_same<std::aligned_union_t<10, short>, T1>::value, "" );
  #endif
      static_assert(std::alignment_of<T1>::value == 2, "");
      static_assert(sizeof(T1) == 10, "");
      }
      {
      typedef std::aligned_union<10, int >::type T1;
  #if _LIBCPP_STD_VER > 11
      static_assert(std::is_same<std::aligned_union_t<10, int>, T1>::value, "" );
  #endif
      static_assert(std::alignment_of<T1>::value == 4, "");
      static_assert(sizeof(T1) == 12, "");
      }
      {
      typedef std::aligned_union<10, double >::type T1;
  #if _LIBCPP_STD_VER > 11
      static_assert(std::is_same<std::aligned_union_t<10, double>, T1>::value, "" );
  #endif
      static_assert(std::alignment_of<T1>::value == 8, "");
      static_assert(sizeof(T1) == 16, "");
      }
      {
      typedef std::aligned_union<10, short, char >::type T1;
  #if _LIBCPP_STD_VER > 11
      static_assert(std::is_same<std::aligned_union_t<10, short, char>, T1>::value, "" );
  #endif
      static_assert(std::alignment_of<T1>::value == 2, "");
      static_assert(sizeof(T1) == 10, "");
      }
      {
      typedef std::aligned_union<10, char, short >::type T1;
  #if _LIBCPP_STD_VER > 11
      static_assert(std::is_same<std::aligned_union_t<10, char, short>, T1>::value, "" );
  #endif
      static_assert(std::alignment_of<T1>::value == 2, "");
      static_assert(sizeof(T1) == 10, "");
      }
      {
      typedef std::aligned_union<2, int, char, short >::type T1;
  #if _LIBCPP_STD_VER > 11
      static_assert(std::is_same<std::aligned_union_t<2, int, char, short>, T1>::value, "" );
  #endif
      static_assert(std::alignment_of<T1>::value == 4, "");
      static_assert(sizeof(T1) == 4, "");
      }
      {
      typedef std::aligned_union<2, char, int, short >::type T1;
  #if _LIBCPP_STD_VER > 11
      static_assert(std::is_same<std::aligned_union_t<2, char, int, short >, T1>::value, "" );
  #endif
      static_assert(std::alignment_of<T1>::value == 4, "");
      static_assert(sizeof(T1) == 4, "");
      }
      {
      typedef std::aligned_union<2, char, short, int >::type T1;
  #if _LIBCPP_STD_VER > 11
      static_assert(std::is_same<std::aligned_union_t<2, char, short, int >, T1>::value, "" );
  #endif
      static_assert(std::alignment_of<T1>::value == 4, "");
      static_assert(sizeof(T1) == 4, "");
      }
  #endif
  }
  