Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Howard Hinnant | b64f8b0 | 2010-11-16 22:09:02 +0000 | [diff] [blame] | 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // <future> |
| 11 | |
| 12 | // class future<R> |
| 13 | |
| 14 | // future(const future&) = delete; |
| 15 | |
| 16 | #include <future> |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 17 | #include <cassert> |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 18 | |
| 19 | int main() |
| 20 | { |
| 21 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 22 | typedef int T; |
| 23 | std::promise<T> p; |
| 24 | std::future<T> f0 = p.get_future(); |
| 25 | std::future<T> f = f0; |
| 26 | assert(!f0.valid()); |
| 27 | assert(f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 28 | } |
| 29 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 30 | typedef int T; |
| 31 | std::future<T> f0; |
| 32 | std::future<T> f = f0; |
| 33 | assert(!f0.valid()); |
| 34 | assert(!f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 35 | } |
| 36 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 37 | typedef int& T; |
| 38 | std::promise<T> p; |
| 39 | std::future<T> f0 = p.get_future(); |
| 40 | std::future<T> f = f0; |
| 41 | assert(!f0.valid()); |
| 42 | assert(f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 43 | } |
| 44 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 45 | typedef int& T; |
| 46 | std::future<T> f0; |
| 47 | std::future<T> f = std::move(f0); |
| 48 | assert(!f0.valid()); |
| 49 | assert(!f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 50 | } |
| 51 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 52 | typedef void T; |
| 53 | std::promise<T> p; |
| 54 | std::future<T> f0 = p.get_future(); |
| 55 | std::future<T> f = f0; |
| 56 | assert(!f0.valid()); |
| 57 | assert(f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 58 | } |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 59 | { |
| 60 | typedef void T; |
| 61 | std::future<T> f0; |
| 62 | std::future<T> f = f0; |
| 63 | assert(!f0.valid()); |
| 64 | assert(!f.valid()); |
| 65 | } |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 66 | } |