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, c++03
10
11// <future>
12
13// class future<R>
14
15// future& operator=(future&& rhs);
16
17#include <future>
18#include <cassert>
19
20#include "test_macros.h"
21
22int main(int, char**)
23{
24 {
25 typedef int T;
26 std::promise<T> p;
27 std::future<T> f0 = p.get_future();
28 std::future<T> f;
29 f = std::move(f0);
30 assert(!f0.valid());
31 assert(f.valid());
32 }
33 {
34 typedef int T;
35 std::future<T> f0;
36 std::future<T> f;
37 f = std::move(f0);
38 assert(!f0.valid());
39 assert(!f.valid());
40 }
41 {
42 typedef int& T;
43 std::promise<T> p;
44 std::future<T> f0 = p.get_future();
45 std::future<T> f;
46 f = std::move(f0);
47 assert(!f0.valid());
48 assert(f.valid());
49 }
50 {
51 typedef int& T;
52 std::future<T> f0;
53 std::future<T> f;
54 f = std::move(f0);
55 assert(!f0.valid());
56 assert(!f.valid());
57 }
58 {
59 typedef void T;
60 std::promise<T> p;
61 std::future<T> f0 = p.get_future();
62 std::future<T> f;
63 f = std::move(f0);
64 assert(!f0.valid());
65 assert(f.valid());
66 }
67 {
68 typedef void T;
69 std::future<T> f0;
70 std::future<T> f;
71 f = std::move(f0);
72 assert(!f0.valid());
73 assert(!f.valid());
74 }
75
76 return 0;
77}
78

source code of libcxx/test/std/thread/futures/futures.unique_future/move_assign.pass.cpp