"left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">Requires:</span></p></td>
<td><p>Map must be an MPL map with an entry for each placeholder 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>
</ol></div>
</div>
<div class="refsect2">
<a name="id-1.3.41.13.4.3.4.4"></a><h3>
<