class memory_resource {
static constexpr size_t max_align = alignof(max_align_t); // exposition only
public:
virtual ~memory_resource();
void* allocate(size_t bytes, size_t alignment = max_align);
void deallocate(void* p, size_t bytes, size_t alignment = max_align);
bool is_equal(const memory_resource& other) const noexcept;
private:
virtual void* do_allocate(size_t bytes, size_t alignment) = 0;
virtual void do_deallocate(void* p, size_t bytes, size_t alignment) = 0;
virtual bool do_is_equal(const memory_resource& other) const noexcept = 0;
};
~memory_resource();
void* allocate(size_t bytes, size_t alignment = max_align);
void deallocate(void* p, size_t bytes, size_t alignment = max_align);
bool is_equal(const memory_resource& other) const noexcept;
virtual void* do_allocate(size_t bytes, size_t alignment) = 0;
virtual void do_deallocate(void* p, size_t bytes, size_t alignment) = 0;
virtual bool do_is_equal(const memory_resource& other) const noexcept = 0;