1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <future> 11 12 // class promise<R> 13 14 // void promise::set_value_at_thread_exit(R&& r); 15 16 #include <future> 17 #include <memory> 18 #include <cassert> 19 20 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 21 22 void func(std::promise<std::unique_ptr<int>> p) 23 { 24 p.set_value_at_thread_exit(std::unique_ptr<int>(new int(5))); 25 } 26 27 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 28 29 int main() 30 { 31 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 32 { 33 std::promise<std::unique_ptr<int>> p; 34 std::future<std::unique_ptr<int>> f = p.get_future(); 35 std::thread(func, std::move(p)).detach(); 36 assert(*f.get() == 5); 37 } 38 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 39 } 40
