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(future&& rhs); 16 17 #include <future> 18 #include <cassert> 19 20 #include "test_macros.h" 21 main(int,char **)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 = std::move(f0); 29 assert(!f0.valid()); 30 assert(f.valid()); 31 } 32 { 33 typedef int T; 34 std::future<T> f0; 35 std::future<T> f = std::move(f0); 36 assert(!f0.valid()); 37 assert(!f.valid()); 38 } 39 { 40 typedef int& T; 41 std::promise<T> p; 42 std::future<T> f0 = p.get_future(); 43 std::future<T> f = std::move(f0); 44 assert(!f0.valid()); 45 assert(f.valid()); 46 } 47 { 48 typedef int& T; 49 std::future<T> f0; 50 std::future<T> f = std::move(f0); 51 assert(!f0.valid()); 52 assert(!f.valid()); 53 } 54 { 55 typedef void T; 56 std::promise<T> p; 57 std::future<T> f0 = p.get_future(); 58 std::future<T> f = std::move(f0); 59 assert(!f0.valid()); 60 assert(f.valid()); 61 } 62 { 63 typedef void T; 64 std::future<T> f0; 65 std::future<T> f = std::move(f0); 66 assert(!f0.valid()); 67 assert(!f.valid()); 68 } 69 70 return 0; 71 } 72