15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The LLVM Compiler Infrastructure 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This file is dual licensed under the MIT and the University of Illinois Open 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Source Licenses. See LICENSE.TXT for details. 7a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 9f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// <future> 11f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// class shared_future<R> 13a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 14// shared_future& operator=(const shared_future& rhs); 15 16#include <future> 17#include <cassert> 18 19int main() 20{ 21#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 22 { 23 typedef int T; 24 std::promise<T> p; 25 std::shared_future<T> f0 = p.get_future(); 26 std::shared_future<T> f; 27 f = f0; 28 assert(f0.valid()); 29 assert(f.valid()); 30 } 31 { 32 typedef int T; 33 std::shared_future<T> f0; 34 std::shared_future<T> f; 35 f = f0; 36 assert(!f0.valid()); 37 assert(!f.valid()); 38 } 39 { 40 typedef int& T; 41 std::promise<T> p; 42 std::shared_future<T> f0 = p.get_future(); 43 std::shared_future<T> f; 44 f = f0; 45 assert(f0.valid()); 46 assert(f.valid()); 47 } 48 { 49 typedef int& T; 50 std::shared_future<T> f0; 51 std::shared_future<T> f; 52 f = f0; 53 assert(!f0.valid()); 54 assert(!f.valid()); 55 } 56 { 57 typedef void T; 58 std::promise<T> p; 59 std::shared_future<T> f0 = p.get_future(); 60 std::shared_future<T> f; 61 f = f0; 62 assert(f0.valid()); 63 assert(f.valid()); 64 } 65 { 66 typedef void T; 67 std::shared_future<T> f0; 68 std::shared_future<T> f; 69 f = f0; 70 assert(!f0.valid()); 71 assert(!f.valid()); 72 } 73#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 74} 75