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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/ext/std/array.hpp> | |
6 | ||
7 | #include <boost/hana/assert.hpp> | |
8 | #include <boost/hana/at.hpp> | |
9 | ||
10 | #include <laws/base.hpp> // for move_only | |
11 | ||
12 | #include <array> | |
13 | namespace hana = boost::hana; | |
14 | ||
15 | ||
16 | int main() { | |
17 | // Check non-const lvalue reference | |
18 | { | |
19 | std::array<int, 2> arr = {{999, 888}}; | |
20 | int& i = hana::at_c<0>(arr); | |
21 | BOOST_HANA_RUNTIME_CHECK(i == 999); | |
22 | arr[0] = 333; | |
23 | BOOST_HANA_RUNTIME_CHECK(i == 333); | |
24 | i = 444; | |
25 | BOOST_HANA_RUNTIME_CHECK(arr[0] == 444); | |
26 | } | |
27 | ||
28 | // Check const lvalue reference | |
29 | { | |
30 | std::array<int, 2> arr = {{999, 888}}; | |
31 | int const& i = hana::at_c<0>(static_cast<std::array<int, 2> const&>(arr)); | |
32 | BOOST_HANA_RUNTIME_CHECK(i == 999); | |
33 | arr[0] = 333; | |
34 | BOOST_HANA_RUNTIME_CHECK(i == 333); | |
35 | } | |
36 | ||
37 | // Check move-only types | |
38 | { | |
39 | std::array<hana::test::move_only, 2> arr{}; | |
40 | hana::test::move_only m = hana::at_c<0>(std::move(arr)); | |
41 | (void)m; | |
42 | } | |
43 | } |