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//===----------------------------------------------------------------------===//
//
// 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 <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;
}
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