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 11 12 // <future> 13 14 // class future<R> 15 16 // future(future&& rhs); 17 18 #include <future> 19 #include <cassert> 20 21 int main() 22 { 23 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 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 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 70 } 71
