1 // Copyright Louis Dionne 2013-2017
2 // Distributed under the Boost Software License, Version 1.0.
3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
5 #include <boost/hana/assert.hpp>
6 #include <boost/hana/config.hpp>
7 #include <boost/hana/tuple.hpp>
8 #include <boost/hana/unpack.hpp>
9 namespace hana
= boost::hana
;
13 BOOST_HANA_CONSTEXPR_LAMBDA
auto add
= [](auto x
, auto y
, auto z
) {
17 BOOST_HANA_CONSTEXPR_CHECK(hana::unpack(hana::make_tuple(1, 2, 3), add
) == 6);