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(const R& r); 15 16 #include <future> 17 #include <cassert> 18 19 void func(std::promise<int> p) 20 { 21 const int i = 5; 22 p.set_value_at_thread_exit(i); 23 } 24 25 int main() 26 { 27 { 28 std::promise<int> p; 29 std::future<int> f = p.get_future(); 30 std::thread(func, std::move(p)).detach(); 31 assert(f.get() == 5); 32 } 33 } 34
