]>
Commit | Line | Data |
---|---|---|
b32b8144 | 1 | // Copyright Louis Dionne 2013-2017 |
7c673cae FG |
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/chain.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 | auto f = [](auto x) { | |
17 | return hana::just(hana::test::_injection<0>{}(x)); | |
18 | }; | |
19 | ||
20 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
21 | hana::chain(hana::just(ct_eq<3>{}), f), | |
22 | f(ct_eq<3>{}) | |
23 | )); | |
24 | ||
25 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
26 | hana::chain(hana::nothing, f), | |
27 | hana::nothing | |
28 | )); | |
29 | ||
30 | // test with operators | |
31 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
32 | hana::just(ct_eq<3>{}) | f, | |
33 | f(ct_eq<3>{}) | |
34 | )); | |
35 | ||
36 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
37 | hana::nothing | f, | |
38 | hana::nothing | |
39 | )); | |
40 | } |