er referred to by <code class="computeroutput">Concept</code>. The mapped type should be the corresponding placeholder in Concept2.</p></td>
</tr>
<tr>
<td><p><span class="term">Throws:</span></p></td>
<td>std::bad_alloc </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> Concept2<span class="special">,</span> <span class="keyword">typename</span> Map<span class=