/*
@copyright Louis Dionne 2014
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
 */

#include <boost/hana/list/instance.hpp>

#include <boost/hana/detail/static_assert.hpp>
#include <boost/hana/integral.hpp>
using namespace boost::hana;


struct non_trivial { virtual ~non_trivial() { } };

int main() {
    BOOST_HANA_STATIC_ASSERT(head(list(int_<0>)) == int_<0>);
    BOOST_HANA_STATIC_ASSERT(head(list(int_<0>, int_<1>)) == int_<0>);
    BOOST_HANA_STATIC_ASSERT(head(list(int_<0>, int_<1>, int_<2>)) == int_<0>);
    BOOST_HANA_STATIC_ASSERT(head(list(int_<0>, int_<1>, non_trivial{})) == int_<0>);
}