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/concept/struct.hpp>
7 #include <boost/hana/equal.hpp>
8 #include <boost/hana/members.hpp>
9
10 #include "minimal_struct.hpp"
11 #include <laws/base.hpp>
12 #include <support/seq.hpp>
13 namespace hana = boost::hana;
14 using hana::test::ct_eq;
15
16
17 struct MoveOnly {
18 MoveOnly() = default;
19 MoveOnly(MoveOnly&&) = default;
20 MoveOnly(MoveOnly const&) = delete;
21 MoveOnly& operator=(MoveOnly&&) = default;
22 MoveOnly& operator=(MoveOnly const&) = delete;
23 };
24
main()25 int main() {
26 BOOST_HANA_CONSTANT_CHECK(hana::equal(
27 hana::members(obj()),
28 ::seq()
29 ));
30
31 BOOST_HANA_CONSTANT_CHECK(hana::equal(
32 hana::members(obj(ct_eq<0>{})),
33 ::seq(ct_eq<0>{})
34 ));
35
36 BOOST_HANA_CONSTANT_CHECK(hana::equal(
37 hana::members(obj(ct_eq<0>{}, ct_eq<1>{})),
38 ::seq(ct_eq<0>{}, ct_eq<1>{})
39 ));
40
41 BOOST_HANA_CONSTANT_CHECK(hana::equal(
42 hana::members(obj(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})),
43 ::seq(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
44 ));
45
46 // make sure it works with move only types
47 auto z1 = hana::members(obj(MoveOnly{}));
48 auto z2 = hana::members(obj(MoveOnly{}, MoveOnly{}));
49 (void)z1;
50 (void)z2;
51 }
52