| 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 monotonic_buffer_resource |
| 16 | |
| 17 | #include <memory_resource> |
| 18 | #include <cassert> |
| 19 | |
| 20 | #include "count_new.h" |
| 21 | |
| 22 | int main(int, char**) { |
| 23 | // Constructing a monotonic_buffer_resource should not cause allocations |
| 24 | // by itself; the resource should wait to allocate until an allocation is |
| 25 | // requested. |
| 26 | |
| 27 | globalMemCounter.reset(); |
| 28 | std::pmr::set_default_resource(std::pmr::new_delete_resource()); |
| 29 | |
| 30 | std::pmr::monotonic_buffer_resource r1; |
| 31 | assert(globalMemCounter.checkNewCalledEq(0)); |
| 32 | |
| 33 | std::pmr::monotonic_buffer_resource r2(1024); |
| 34 | assert(globalMemCounter.checkNewCalledEq(0)); |
| 35 | |
| 36 | std::pmr::monotonic_buffer_resource r3(1024, std::pmr::new_delete_resource()); |
| 37 | assert(globalMemCounter.checkNewCalledEq(0)); |
| 38 | |
| 39 | return 0; |
| 40 | } |
| 41 |