he static regular expression. </p></td>
</tr></tbody>
</table></div></td>
</tr>
<tr>
<td><p><span class="term">Requires:</span></p></td>
<td><p>Expr is the type of a static regular expression. </p></td>
</tr>
<tr>
<td><p><span class="term">Postconditions:</span></p></td>
<td>
<p>regex_id() != 0 </p>
<p>mark_count() &gt;= 0 </p>
</td>
</tr>
<tr>
<td><p><span class="term">Returns:</span></p></td>
<td><p>*this </p></td>
</tr>
<tr>
<td><p><span class="term">Throws:</span></p></td>
<td>std::bad_alloc on out of m