ass="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="identifier">get_content</span><span class="special">(</span><span class="identifier">my_data_structure</span><span class="special">))</span>
</pre>
<p>
        Of course, this transmission of content can occur repeatedly, if the values
        in the data structure--but not its shape--changes.
      </p>
<p>
        The skeleton/content mechanism is a structured way to exploit the int