B-&gt;set_h_nelem()">DB-&gt;set_h_nelem()</a>
         method.
    </p>
      <p>
         The <code class="methodname">DB-&gt;get_h_nelem()</code> method may be called at any time during the
         life of the application.
    </p>
      <p>
         The <code class="methodname">DB-&gt;get_h_nelem()</code> <span>
            <span>
                  method returns a non-zero error value on failure and 0 on success.
            </span>
            
        </span>
    </p>
      <div class="sect2" lang="e