Defined in header
std::pmr::memory_resource* new_delete_resource() noexcept;
Returns a pointer to a
memory_resource that uses the global operator new and operator delete to allocate memory.
 Return value
Returns a pointer
p to a static storage duration object of a type derived from std::pmr::memory_resource, with the following properties:
allocate()function uses ::operator new to allocate memory;
deallocate()function uses ::operator delete to deallocate memory;
- for any
r, p->is_equal(r) returns &r == p.
The same value is returned every time this function is called.