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

// Copyright (C) 2007, 2009 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/>.

// Tuple

#include <tuple>
#include <testsuite_hooks.h>

using namespace std;

int
main()
{
  bool test __attribute__((unused)) = true;

  VERIFY(tuple_size<tuple<> >::value == 0);
  VERIFY(tuple_size<tuple<int> >::value == 1);
  VERIFY(tuple_size<tuple<void> >::value == 1);
  typedef tuple<int,const int&,void> test_tuple1;
  VERIFY(tuple_size<test_tuple1>::value == 3);
  VERIFY(tuple_size<tuple<tuple<void> > >::value == 1);
}