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- // Copyright Louis Dionne 2013-2017
- // 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/equal.hpp>
- #include <boost/hana/type.hpp>
- #include <type_traits>
- namespace hana = boost::hana;
- template <typename ...> struct f { struct type; };
- struct x;
- struct y;
- BOOST_HANA_CONSTANT_CHECK(hana::metafunction<f>() == hana::type_c<f<>::type>);
- BOOST_HANA_CONSTANT_CHECK(hana::metafunction<f>(hana::type_c<x>) == hana::type_c<f<x>::type>);
- BOOST_HANA_CONSTANT_CHECK(hana::metafunction<f>(hana::type_c<x>, hana::type_c<y>) == hana::type_c<f<x, y>::type>);
- static_assert(std::is_same<
- decltype(hana::metafunction<f>)::apply<x, y>::type,
- f<x, y>::type
- >::value, "");
- int main() { }
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