//===----------------------------------------------------------------------===//
//
// 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
// TODO: Change to XFAIL once https://github.com/llvm/llvm-project/issues/40340 is fixed
// UNSUPPORTED: availability-pmr-missing
// <memory_resource>
// class monotonic_buffer_resource
#include <memory_resource>
#include <cassert>
#include "count_new.h"
#include "test_macros.h"
void test_geometric_progression() {
// mem.res.monotonic.buffer 1.3
// Each additional buffer is larger than the previous one, following a
// geometric progression.
globalMemCounter.reset();
std::pmr::monotonic_buffer_resource mono1(100, std::pmr::new_delete_resource());
std::pmr::memory_resource& r1 = mono1;
assert(globalMemCounter.checkNewCalledEq(0));
std::size_t next_buffer_size = 100;
void* ret = r1.allocate(10, 1);
assert(ret != nullptr);
assert(globalMemCounter.checkNewCalledEq(1));
assert(globalMemCounter.last_new_size >= next_buffer_size);
next_buffer_size = globalMemCounter.last_new_size + 1;
int new_called = 1;
while (new_called < 5) {
ret = r1.allocate(10, 1);
if (globalMemCounter.new_called > new_called) {
assert(globalMemCounter.new_called == new_called + 1);
assert(globalMemCounter.last_new_size >= next_buffer_size);
next_buffer_size = globalMemCounter.last_new_size + 1;
new_called += 1;
}
}
}
int main(int, char**) {
#if TEST_SUPPORTS_LIBRARY_INTERNAL_ALLOCATIONS && !defined(DISABLE_NEW_COUNT)
test_geometric_progression();
#endif
return 0;
}