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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/core/make.hpp> | |
7 | #include <boost/hana/equal.hpp> | |
8 | #include <boost/hana/optional.hpp> | |
9 | ||
10 | #include <laws/base.hpp> | |
11 | namespace hana = boost::hana; | |
12 | using hana::test::ct_eq; | |
13 | ||
14 | ||
15 | int main() { | |
16 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
17 | hana::make<hana::optional_tag>(), | |
18 | hana::nothing | |
19 | )); | |
20 | ||
21 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
22 | hana::make<hana::optional_tag>(ct_eq<3>{}), | |
23 | hana::just(ct_eq<3>{}) | |
24 | )); | |
25 | ||
26 | // Check that make_optional == make<optional_tag> | |
27 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
28 | hana::make_optional(), | |
29 | hana::make<hana::optional_tag>() | |
30 | )); | |
31 | ||
32 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
33 | hana::make_optional(ct_eq<3>{}), | |
34 | hana::make<hana::optional_tag>(ct_eq<3>{}) | |
35 | )); | |
36 | } |