1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <array>
10
11// template <size_t I, class T, size_t N> const T&& get(const array<T, N>&& a);
12
13// UNSUPPORTED: c++03
14
15#include <array>
16#include <memory>
17#include <type_traits>
18#include <utility>
19#include <cassert>
20
21#include "test_macros.h"
22
23int main(int, char**)
24{
25
26 {
27 typedef std::unique_ptr<double> T;
28 typedef std::array<T, 1> C;
29 const C c = {std::unique_ptr<double>(new double(3.5))};
30 static_assert(std::is_same<const T&&, decltype(std::get<0>(std::move(c)))>::value, "");
31 static_assert(noexcept(std::get<0>(std::move(c))), "");
32 const T&& t = std::get<0>(std::move(c));
33 assert(*t == 3.5);
34 }
35
36#if TEST_STD_VER >= 14
37 {
38 typedef double T;
39 typedef std::array<T, 3> C;
40 constexpr const C c = {1, 2, 3.5};
41 static_assert(std::get<0>(std::move(c)) == 1, "");
42 static_assert(std::get<1>(std::move(c)) == 2, "");
43 static_assert(std::get<2>(std::move(c)) == 3.5, "");
44 }
45#endif
46
47 return 0;
48}
49

source code of libcxx/test/std/containers/sequences/array/array.tuple/get_const_rv.pass.cpp