| 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: c++03 |
| 10 | // UNSUPPORTED: no-threads, no-exceptions |
| 11 | |
| 12 | // <future> |
| 13 | |
| 14 | // class promise<R> |
| 15 | |
| 16 | // void promise::set_value(R&& r); |
| 17 | |
| 18 | #include <future> |
| 19 | #include <memory> |
| 20 | #include <cassert> |
| 21 | |
| 22 | #include "test_macros.h" |
| 23 | |
| 24 | struct A |
| 25 | { |
| 26 | A() {} |
| 27 | A(const A&) = delete; |
| 28 | A(A&&) {throw 9;} |
| 29 | }; |
| 30 | |
| 31 | int main(int, char**) |
| 32 | { |
| 33 | { |
| 34 | typedef std::unique_ptr<int> T; |
| 35 | T i(new int(3)); |
| 36 | std::promise<T> p; |
| 37 | std::future<T> f = p.get_future(); |
| 38 | p.set_value(std::move(i)); |
| 39 | assert(*f.get() == 3); |
| 40 | try |
| 41 | { |
| 42 | p.set_value(std::move(i)); |
| 43 | assert(false); |
| 44 | } |
| 45 | catch (const std::future_error& e) |
| 46 | { |
| 47 | assert(e.code() == make_error_code(std::future_errc::promise_already_satisfied)); |
| 48 | } |
| 49 | } |
| 50 | { |
| 51 | typedef A T; |
| 52 | T i; |
| 53 | std::promise<T> p; |
| 54 | std::future<T> f = p.get_future(); |
| 55 | try |
| 56 | { |
| 57 | p.set_value(std::move(i)); |
| 58 | assert(false); |
| 59 | } |
| 60 | catch (int j) |
| 61 | { |
| 62 | assert(j == 9); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | return 0; |
| 67 | } |
| 68 |