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) 4 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; 10 11 main()12int main() { 13 BOOST_HANA_CONSTEXPR_LAMBDA auto add = [](auto x, auto y, auto z) { 14 return x + y + z; 15 }; 16 17 BOOST_HANA_CONSTEXPR_CHECK(hana::unpack(hana::make_tuple(1, 2, 3), add) == 6); 18 } 19