 </td></tr></tbody>
</table></div>
<h6>
<a name="spirit.advanced.customize.clear_value.h3"></a>
          <span class="phrase"><a name="spirit.advanced.customize.clear_value.synopsis"></a></span><a class="link" href="clear_value.html#spirit.advanced.customize.clear_value.synopsis">Synopsis</a>
        </h6>
<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Attrib</span><span class="special">,</spa