| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03, c++11, c++14 |
| // XFAIL: availability-pmr-missing |
| |
| // <memory_resource> |
| |
| // class monotonic_buffer_resource |
| |
| #include <memory_resource> |
| #include <cassert> |
| #include <cstddef> // size_t |
| |
| struct assert_on_compare : public std::pmr::memory_resource { |
| void* do_allocate(std::size_t, size_t) override { |
| assert(false); |
| return nullptr; |
| } |
| |
| void do_deallocate(void*, std::size_t, size_t) override { assert(false); } |
| |
| bool do_is_equal(const std::pmr::memory_resource&) const noexcept override { |
| assert(false); |
| return true; |
| } |
| }; |
| |
| int main(int, char**) { |
| // Same object |
| { |
| std::pmr::monotonic_buffer_resource r1; |
| std::pmr::monotonic_buffer_resource r2; |
| assert(r1 == r1); |
| assert(r1 != r2); |
| |
| std::pmr::memory_resource& p1 = r1; |
| std::pmr::memory_resource& p2 = r2; |
| assert(p1 == p1); |
| assert(p1 != p2); |
| assert(p1 == r1); |
| assert(r1 == p1); |
| assert(p1 != r2); |
| assert(r2 != p1); |
| } |
| // Different types |
| { |
| std::pmr::monotonic_buffer_resource mono1; |
| std::pmr::memory_resource& r1 = mono1; |
| assert_on_compare c; |
| std::pmr::memory_resource& r2 = c; |
| assert(r1 != r2); |
| assert(!(r1 == r2)); |
| } |
| |
| return 0; |
| } |