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 // UNSUPPORTED: libcpp-has-no-threads, c++98, c++03 11 12 // <future> 13 14 // class future<R> 15 16 // future& operator=(future&& rhs); 17 18 #include <future> 19 #include <cassert> 20 21 int main() 22 { 23 { 24 typedef int T; 25 std::promise<T> p; 26 std::future<T> f0 = p.get_future(); 27 std::future<T> f; 28 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; 36 f = std::move(f0); 37 assert(!f0.valid()); 38 assert(!f.valid()); 39 } 40 { 41 typedef int& T; 42 std::promise<T> p; 43 std::future<T> f0 = p.get_future(); 44 std::future<T> f; 45 f = std::move(f0); 46 assert(!f0.valid()); 47 assert(f.valid()); 48 } 49 { 50 typedef int& T; 51 std::future<T> f0; 52 std::future<T> f; 53 f = std::move(f0); 54 assert(!f0.valid()); 55 assert(!f.valid()); 56 } 57 { 58 typedef void T; 59 std::promise<T> p; 60 std::future<T> f0 = p.get_future(); 61 std::future<T> f; 62 f = std::move(f0); 63 assert(!f0.valid()); 64 assert(f.valid()); 65 } 66 { 67 typedef void T; 68 std::future<T> f0; 69 std::future<T> f; 70 f = std::move(f0); 71 assert(!f0.valid()); 72 assert(!f.valid()); 73 } 74 } 75
