Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +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 | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
Jonathan Roelofs | 8d86b2e | 2014-09-05 19:45:05 +0000 | [diff] [blame] | 9 | // |
| 10 | // UNSUPPORTED: libcpp-has-no-threads |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 11 | |
| 12 | // <future> |
| 13 | |
| 14 | // class promise<R> |
| 15 | |
| 16 | // void swap(promise& other); |
| 17 | |
| 18 | // template <class R> void swap(promise<R>& x, promise<R>& y); |
| 19 | |
| 20 | #include <future> |
| 21 | #include <cassert> |
| 22 | |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 23 | #include "../test_allocator.h" |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 24 | |
| 25 | int main() |
| 26 | { |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 27 | assert(test_alloc_base::count == 0); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 28 | { |
| 29 | std::promise<int> p0(std::allocator_arg, test_allocator<int>()); |
| 30 | std::promise<int> p(std::allocator_arg, test_allocator<int>()); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 31 | assert(test_alloc_base::count == 2); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 32 | p.swap(p0); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 33 | assert(test_alloc_base::count == 2); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 34 | std::future<int> f = p.get_future(); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 35 | assert(test_alloc_base::count == 2); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 36 | assert(f.valid()); |
| 37 | f = p0.get_future(); |
| 38 | assert(f.valid()); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 39 | assert(test_alloc_base::count == 2); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 40 | } |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 41 | assert(test_alloc_base::count == 0); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 42 | { |
| 43 | std::promise<int> p0(std::allocator_arg, test_allocator<int>()); |
| 44 | std::promise<int> p(std::allocator_arg, test_allocator<int>()); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 45 | assert(test_alloc_base::count == 2); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 46 | swap(p, p0); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 47 | assert(test_alloc_base::count == 2); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 48 | std::future<int> f = p.get_future(); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 49 | assert(test_alloc_base::count == 2); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 50 | assert(f.valid()); |
| 51 | f = p0.get_future(); |
| 52 | assert(f.valid()); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 53 | assert(test_alloc_base::count == 2); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 54 | } |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 55 | assert(test_alloc_base::count == 0); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 56 | { |
| 57 | std::promise<int> p0(std::allocator_arg, test_allocator<int>()); |
| 58 | std::promise<int> p; |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 59 | assert(test_alloc_base::count == 1); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 60 | p.swap(p0); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 61 | assert(test_alloc_base::count == 1); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 62 | std::future<int> f = p.get_future(); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 63 | assert(test_alloc_base::count == 1); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 64 | assert(f.valid()); |
| 65 | f = p0.get_future(); |
| 66 | assert(f.valid()); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 67 | assert(test_alloc_base::count == 1); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 68 | } |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 69 | assert(test_alloc_base::count == 0); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 70 | { |
| 71 | std::promise<int> p0(std::allocator_arg, test_allocator<int>()); |
| 72 | std::promise<int> p; |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 73 | assert(test_alloc_base::count == 1); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 74 | swap(p, p0); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 75 | assert(test_alloc_base::count == 1); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 76 | std::future<int> f = p.get_future(); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 77 | assert(test_alloc_base::count == 1); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 78 | assert(f.valid()); |
| 79 | f = p0.get_future(); |
| 80 | assert(f.valid()); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 81 | assert(test_alloc_base::count == 1); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 82 | } |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 83 | assert(test_alloc_base::count == 0); |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 84 | } |