Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // <future> |
| 11 | |
| 12 | // class promise<R> |
| 13 | |
| 14 | // promise& operator=(promise&& rhs); |
| 15 | |
| 16 | #include <future> |
| 17 | #include <cassert> |
| 18 | |
| 19 | #include "../test_allocator.h" |
| 20 | |
| 21 | int main() |
| 22 | { |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame^] | 23 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 24 | assert(test_alloc_base::count == 0); |
| 25 | { |
| 26 | std::promise<int> p0(std::allocator_arg, test_allocator<int>()); |
| 27 | std::promise<int> p(std::allocator_arg, test_allocator<int>()); |
| 28 | assert(test_alloc_base::count == 2); |
| 29 | p = std::move(p0); |
| 30 | assert(test_alloc_base::count == 1); |
| 31 | std::future<int> f = p.get_future(); |
| 32 | assert(test_alloc_base::count == 1); |
| 33 | assert(f.valid()); |
| 34 | try |
| 35 | { |
| 36 | f = p0.get_future(); |
| 37 | assert(false); |
| 38 | } |
| 39 | catch (const std::future_error& e) |
| 40 | { |
| 41 | assert(e.code() == make_error_code(std::future_errc::no_state)); |
| 42 | } |
| 43 | assert(test_alloc_base::count == 1); |
| 44 | } |
| 45 | assert(test_alloc_base::count == 0); |
| 46 | { |
| 47 | std::promise<int&> p0(std::allocator_arg, test_allocator<int>()); |
| 48 | std::promise<int&> p(std::allocator_arg, test_allocator<int>()); |
| 49 | assert(test_alloc_base::count == 2); |
| 50 | p = std::move(p0); |
| 51 | assert(test_alloc_base::count == 1); |
| 52 | std::future<int&> f = p.get_future(); |
| 53 | assert(test_alloc_base::count == 1); |
| 54 | assert(f.valid()); |
| 55 | try |
| 56 | { |
| 57 | f = p0.get_future(); |
| 58 | assert(false); |
| 59 | } |
| 60 | catch (const std::future_error& e) |
| 61 | { |
| 62 | assert(e.code() == make_error_code(std::future_errc::no_state)); |
| 63 | } |
| 64 | assert(test_alloc_base::count == 1); |
| 65 | } |
| 66 | assert(test_alloc_base::count == 0); |
| 67 | { |
| 68 | std::promise<void> p0(std::allocator_arg, test_allocator<void>()); |
| 69 | std::promise<void> p(std::allocator_arg, test_allocator<void>()); |
| 70 | assert(test_alloc_base::count == 2); |
| 71 | p = std::move(p0); |
| 72 | assert(test_alloc_base::count == 1); |
| 73 | std::future<void> f = p.get_future(); |
| 74 | assert(test_alloc_base::count == 1); |
| 75 | assert(f.valid()); |
| 76 | try |
| 77 | { |
| 78 | f = p0.get_future(); |
| 79 | assert(false); |
| 80 | } |
| 81 | catch (const std::future_error& e) |
| 82 | { |
| 83 | assert(e.code() == make_error_code(std::future_errc::no_state)); |
| 84 | } |
| 85 | assert(test_alloc_base::count == 1); |
| 86 | } |
| 87 | assert(test_alloc_base::count == 0); |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame^] | 88 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | f39daa8 | 2010-08-28 21:01:06 +0000 | [diff] [blame] | 89 | } |