/*
@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/assert.hpp>
#include <boost/hana/tuple.hpp>
using namespace boost::hana;


int main() {
    //! [main]
    BOOST_HANA_CONSTEXPR_LAMBDA auto f = [](auto x) {
        return tuple(x, -x);
    };

    BOOST_HANA_CONSTEXPR_CHECK((tuple(1, 2, 3) | f) == tuple(1, -1, 2, -2, 3, -3));

    BOOST_HANA_CONSTEXPR_CHECK(
        flatten(tuple(tuple(1, 2), tuple(3, 4), tuple(tuple(5, 6))))
        ==
        tuple(1, 2, 3, 4, tuple(5, 6))
    );
    //! [main]
}