12345678910111213141516171819202122232425262728293031323334353637383940414243 |
- // Copyright Louis Dionne 2013-2017
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
- #include <boost/hana/ext/std/array.hpp>
- #include <boost/hana/assert.hpp>
- #include <boost/hana/at.hpp>
- #include <laws/base.hpp> // for move_only
- #include <array>
- namespace hana = boost::hana;
- int main() {
- // Check non-const lvalue reference
- {
- std::array<int, 2> arr = {{999, 888}};
- int& i = hana::at_c<0>(arr);
- BOOST_HANA_RUNTIME_CHECK(i == 999);
- arr[0] = 333;
- BOOST_HANA_RUNTIME_CHECK(i == 333);
- i = 444;
- BOOST_HANA_RUNTIME_CHECK(arr[0] == 444);
- }
- // Check const lvalue reference
- {
- std::array<int, 2> arr = {{999, 888}};
- int const& i = hana::at_c<0>(static_cast<std::array<int, 2> const&>(arr));
- BOOST_HANA_RUNTIME_CHECK(i == 999);
- arr[0] = 333;
- BOOST_HANA_RUNTIME_CHECK(i == 333);
- }
- // Check move-only types
- {
- std::array<hana::test::move_only, 2> arr{};
- hana::test::move_only m = hana::at_c<0>(std::move(arr));
- (void)m;
- }
- }
|