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& operator=(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 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 21 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 22 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 23 | typedef int T; |
| 24 | std::promise<T> p; |
| 25 | std::future<T> f0 = p.get_future(); |
| 26 | std::future<T> f; |
| 27 | f = f0; |
| 28 | assert(!f0.valid()); |
| 29 | assert(f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 30 | } |
| 31 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 32 | typedef int T; |
| 33 | std::future<T> f0; |
| 34 | std::future<T> f; |
| 35 | f = f0; |
| 36 | assert(!f0.valid()); |
| 37 | assert(!f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 38 | } |
| 39 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 40 | typedef int& T; |
| 41 | std::promise<T> p; |
| 42 | std::future<T> f0 = p.get_future(); |
| 43 | std::future<T> f; |
| 44 | f = f0; |
| 45 | assert(!f0.valid()); |
| 46 | assert(f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 47 | } |
| 48 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 49 | typedef int& T; |
| 50 | std::future<T> f0; |
| 51 | std::future<T> f; |
| 52 | f = f0; |
| 53 | assert(!f0.valid()); |
| 54 | assert(!f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 55 | } |
| 56 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 57 | typedef void T; |
| 58 | std::promise<T> p; |
| 59 | std::future<T> f0 = p.get_future(); |
| 60 | std::future<T> f; |
| 61 | f = f0; |
| 62 | assert(!f0.valid()); |
| 63 | assert(f.valid()); |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 64 | } |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 65 | { |
| 66 | typedef void T; |
| 67 | std::future<T> f0; |
| 68 | std::future<T> f; |
| 69 | f = f0; |
| 70 | assert(!f0.valid()); |
| 71 | assert(!f.valid()); |
| 72 | } |
| 73 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | 7158e5c | 2010-08-29 14:20:30 +0000 | [diff] [blame] | 74 | } |