></p></td>
<td><p><a class="link" href="relaxed.html" title="Struct relaxed">relaxed</a> must be in <code class="computeroutput">Concept</code>.</p></td>
</tr>
<tr>
<td><p><span class="term">Throws:</span></p></td>
<td>Nothing. </td>
</tr>
</tbody>
</table></div>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Map<span class="special">&gt;</span> <span class="keyword">explicit</span> <a name="i