orage for a
      pointer to one of your objects, size = base_size + sizeof(void*).
      However, it will also create a weak reference object which goes in the
      source object's weakreflist and a special callback object to manage the
      lifetime of the internally-referenced object. My guess?
      copy_const_reference is your friend here, resulting in less overall
      memory use and less fragmentation, also probably fewer total
      cycles.</p>
    </blockquote>
    <hr>

    <h2><a name="questio