>p</td><td>Any pointer &ndash; not required to be previously allocated by us. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><em>true</em> if <em>p</em> points to a block in default heap of this thread.</dd></dl>
<p>Note: expensive function, linear in the pages in the heap. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="group__analysis.html#gaa862aa8ed8d57d84cae41fc1022d71af" title="Does a heap contain a pointer to a previously allocated block?">mi_h