| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | // UNSUPPORTED: c++03, c++11, c++14 |
| 10 | // TODO: Change to XFAIL once https://github.com/llvm/llvm-project/issues/40340 is fixed |
| 11 | // UNSUPPORTED: availability-pmr-missing |
| 12 | |
| 13 | // <memory_resource> |
| 14 | |
| 15 | // class synchronized_pool_resource |
| 16 | // class unsynchronized_pool_resource |
| 17 | |
| 18 | #include <memory_resource> |
| 19 | #include <cassert> |
| 20 | #include <new> |
| 21 | #include <type_traits> |
| 22 | |
| 23 | #include "count_new.h" |
| 24 | |
| 25 | class assert_on_compare : public std::pmr::memory_resource { |
| 26 | void* do_allocate(std::size_t, size_t) override { |
| 27 | assert(false); |
| 28 | return nullptr; |
| 29 | } |
| 30 | |
| 31 | void do_deallocate(void*, std::size_t, size_t) override { assert(false); } |
| 32 | |
| 33 | bool do_is_equal(const std::pmr::memory_resource&) const noexcept override { |
| 34 | assert(false); |
| 35 | return true; |
| 36 | } |
| 37 | }; |
| 38 | |
| 39 | template <class PoolResource> |
| 40 | void test() { |
| 41 | // Same type |
| 42 | { |
| 43 | PoolResource pr1; |
| 44 | PoolResource pr2; |
| 45 | assert(pr1 == pr1); |
| 46 | assert(pr1 != pr2); |
| 47 | |
| 48 | std::pmr::memory_resource& mr1 = pr1; |
| 49 | std::pmr::memory_resource& mr2 = pr2; |
| 50 | assert(mr1 == mr1); |
| 51 | assert(mr1 != mr2); |
| 52 | assert(mr1 == pr1); |
| 53 | assert(pr1 == mr1); |
| 54 | assert(mr1 != pr2); |
| 55 | assert(pr2 != mr1); |
| 56 | } |
| 57 | // Different types |
| 58 | { |
| 59 | PoolResource pr1; |
| 60 | std::pmr::memory_resource& mr1 = pr1; |
| 61 | assert_on_compare c; |
| 62 | std::pmr::memory_resource& mr2 = c; |
| 63 | assert(mr1 != mr2); |
| 64 | assert(!(mr1 == mr2)); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | int main(int, char**) { |
| 69 | test<std::pmr::synchronized_pool_resource>(); |
| 70 | test<std::pmr::unsynchronized_pool_resource>(); |
| 71 | |
| 72 | return 0; |
| 73 | } |
| 74 |