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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/equal.hpp> | |
7 | #include <boost/hana/optional.hpp> | |
8 | ||
9 | #include <laws/base.hpp> | |
10 | namespace hana = boost::hana; | |
11 | using hana::test::ct_eq; | |
12 | ||
13 | ||
14 | struct object { | |
15 | ct_eq<3> member; | |
16 | }; | |
17 | ||
18 | int main() { | |
19 | auto lvalue = hana::just(object{}); | |
20 | ct_eq<3>& ref = lvalue->member; | |
21 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
22 | ref, | |
23 | ct_eq<3>{} | |
24 | )); | |
25 | ||
26 | auto const const_lvalue = hana::just(object{}); | |
27 | ct_eq<3> const& const_ref = const_lvalue->member; | |
28 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
29 | const_ref, | |
30 | ct_eq<3>{} | |
31 | )); | |
32 | ||
33 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
34 | hana::just(object{})->member, | |
35 | ct_eq<3>{} | |
36 | )); | |
37 | } |