1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <future>
// class promise<R>
// void promise::set_value_at_thread_exit(R&& r);
#include <future>
#include <memory>
#include <cassert>
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
void func(std::promise<std::unique_ptr<int>> p)
{
p.set_value_at_thread_exit(std::unique_ptr<int>(new int(5)));
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
{
std::promise<std::unique_ptr<int>> p;
std::future<std::unique_ptr<int>> f = p.get_future();
std::thread(func, std::move(p)).detach();
assert(*f.get() == 5);
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}
|
