]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // Copyright Louis Dionne 2013-2016 |
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/contains.hpp> | |
7 | #include <boost/hana/equal.hpp> | |
8 | #include <boost/hana/keys.hpp> | |
9 | #include <boost/hana/map.hpp> | |
10 | #include <boost/hana/permutations.hpp> | |
11 | ||
12 | #include <laws/base.hpp> | |
13 | #include <support/seq.hpp> | |
14 | #include <support/minimal_product.hpp> | |
15 | namespace hana = boost::hana; | |
16 | ||
17 | ||
18 | template <int i> | |
19 | auto key() { return hana::test::ct_eq<i>{}; } | |
20 | ||
21 | template <int i> | |
22 | auto val() { return hana::test::ct_eq<-i>{}; } | |
23 | ||
24 | template <int i, int j> | |
25 | auto p() { return ::minimal_product(key<i>(), val<j>()); } | |
26 | ||
27 | int main() { | |
28 | constexpr auto list = ::seq; | |
29 | ||
30 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
31 | hana::keys(hana::make_map()), | |
32 | list() | |
33 | )); | |
34 | ||
35 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
36 | hana::keys(hana::make_map(p<1, 1>())), | |
37 | list(key<1>()) | |
38 | )); | |
39 | ||
40 | BOOST_HANA_CONSTANT_CHECK(hana::contains( | |
41 | hana::permutations(list(key<1>(), key<2>())), | |
42 | hana::keys(hana::make_map(p<1, 1>(), p<2, 2>())) | |
43 | )); | |
44 | ||
45 | BOOST_HANA_CONSTANT_CHECK(hana::contains( | |
46 | hana::permutations(list(key<1>(), key<2>(), key<3>())), | |
47 | hana::keys(hana::make_map(p<1, 1>(), p<2, 2>(), p<3, 3>())) | |
48 | )); | |
49 | } |