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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/equal.hpp> | |
7 | #include <boost/hana/type.hpp> | |
8 | ||
9 | #include <type_traits> | |
10 | namespace hana = boost::hana; | |
11 | ||
12 | ||
13 | struct f { template <typename ...> struct apply { struct type; }; }; | |
14 | struct x; | |
15 | struct y; | |
16 | ||
17 | BOOST_HANA_CONSTANT_CHECK(hana::metafunction_class<f>() == hana::type_c<f::apply<>::type>); | |
18 | BOOST_HANA_CONSTANT_CHECK(hana::metafunction_class<f>(hana::type_c<x>) == hana::type_c<f::apply<x>::type>); | |
19 | BOOST_HANA_CONSTANT_CHECK(hana::metafunction_class<f>(hana::type_c<x>, hana::type_c<y>) == hana::type_c<f::apply<x, y>::type>); | |
20 | ||
21 | static_assert(std::is_same< | |
22 | decltype(hana::metafunction_class<f>)::apply<x, y>::type, | |
23 | f::apply<x, y>::type | |
24 | >::value, ""); | |
25 | ||
26 | int main() { } |