| 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 | // UNSUPPORTED: no-threads |
| 10 | // UNSUPPORTED: c++03 |
| 11 | |
| 12 | // <future> |
| 13 | |
| 14 | // class shared_future<R> |
| 15 | |
| 16 | // shared_future(shared_future&& rhs); |
| 17 | |
| 18 | #include <future> |
| 19 | #include <cassert> |
| 20 | |
| 21 | #include "test_macros.h" |
| 22 | |
| 23 | int main(int, char**) |
| 24 | { |
| 25 | { |
| 26 | typedef int T; |
| 27 | std::promise<T> p; |
| 28 | std::shared_future<T> f0 = p.get_future(); |
| 29 | std::shared_future<T> f = std::move(f0); |
| 30 | assert(!f0.valid()); |
| 31 | assert(f.valid()); |
| 32 | } |
| 33 | { |
| 34 | typedef int T; |
| 35 | std::shared_future<T> f0; |
| 36 | std::shared_future<T> f = std::move(f0); |
| 37 | assert(!f0.valid()); |
| 38 | assert(!f.valid()); |
| 39 | } |
| 40 | { |
| 41 | typedef int& T; |
| 42 | std::promise<T> p; |
| 43 | std::shared_future<T> f0 = p.get_future(); |
| 44 | std::shared_future<T> f = std::move(f0); |
| 45 | assert(!f0.valid()); |
| 46 | assert(f.valid()); |
| 47 | } |
| 48 | { |
| 49 | typedef int& T; |
| 50 | std::shared_future<T> f0; |
| 51 | std::shared_future<T> f = std::move(f0); |
| 52 | assert(!f0.valid()); |
| 53 | assert(!f.valid()); |
| 54 | } |
| 55 | { |
| 56 | typedef void T; |
| 57 | std::promise<T> p; |
| 58 | std::shared_future<T> f0 = p.get_future(); |
| 59 | std::shared_future<T> f = std::move(f0); |
| 60 | assert(!f0.valid()); |
| 61 | assert(f.valid()); |
| 62 | } |
| 63 | { |
| 64 | typedef void T; |
| 65 | std::shared_future<T> f0; |
| 66 | std::shared_future<T> f = std::move(f0); |
| 67 | assert(!f0.valid()); |
| 68 | assert(!f.valid()); |
| 69 | } |
| 70 | |
| 71 | return 0; |
| 72 | } |
| 73 |