/*
@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/functional.hpp>

#include <boost/hana/detail/constexpr.hpp>
#include <boost/hana/detail/static_assert.hpp>

#include <tuple>
using namespace boost::hana;


BOOST_HANA_CONSTEXPR_LAMBDA auto f = [](auto ...x) {
    return std::make_tuple(x...);
};

BOOST_HANA_CONSTEXPR_LAMBDA auto g = f;
BOOST_HANA_CONSTEXPR_LAMBDA auto h = f;

int main() {
    BOOST_HANA_STATIC_ASSERT(demux(f)() == f());

    BOOST_HANA_STATIC_ASSERT(demux(f, g)(1) == f(g(1)));
    BOOST_HANA_STATIC_ASSERT(demux(f, g)(1, '2') == f(g(1, '2')));
    BOOST_HANA_STATIC_ASSERT(demux(f, g)(1, '2', 3.3) == f(g(1, '2', 3.3)));

    BOOST_HANA_STATIC_ASSERT(demux(f, g, h)(1) == f(g(1), h(1)));
    BOOST_HANA_STATIC_ASSERT(demux(f, g, h)(1, '2') == f(g(1, '2'), h(1, '2')));
    BOOST_HANA_STATIC_ASSERT(demux(f, g, h)(1, '2', 3.3) == f(g(1, '2', 3.3), h(1, '2', 3.3)));
}