cxx/test/thread/futures/futures.promise/set_rvalue_at_thread_exit.pass.cpp

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <future>
// class promise<R>
// void promise::set_value_at_thread_exit(R&& r);
#include <future>
#include <memory>
#include <cassert>
#ifdef _LIBCPP_MOVE
void func(std::promise<std::unique_ptr<int>>& p)
{
p.set_value_at_thread_exit(std::unique_ptr<int>(new int(5)));
}
#endif // _LIBCPP_MOVE
int main()
{
#ifdef _LIBCPP_MOVE
{
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_MOVE
}