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-exceptions |
10 | // UNSUPPORTED: no-threads |
11 | // UNSUPPORTED: c++03 |
12 | |
13 | // <future> |
14 | |
15 | // class promise<R> |
16 | |
17 | // void promise<void>::set_value(); |
18 | |
19 | #include <future> |
20 | #include <cassert> |
21 | |
22 | #include "test_macros.h" |
23 | |
24 | int main(int, char**) |
25 | { |
26 | { |
27 | typedef void T; |
28 | std::promise<T> p; |
29 | std::future<T> f = p.get_future(); |
30 | p.set_value(); |
31 | f.get(); |
32 | try |
33 | { |
34 | p.set_value(); |
35 | assert(false); |
36 | } |
37 | catch (const std::future_error& e) |
38 | { |
39 | assert(e.code() == make_error_code(std::future_errc::promise_already_satisfied)); |
40 | } |
41 | } |
42 | |
43 | return 0; |
44 | } |
45 | |