de>const_reverse_iterator rend () const</code></td>
<td>Returns a <code>const_reverse_iterator</code> pointing to the
end of the reversed expression.</td>
</tr>
</tbody>
</table>
<h3>Unary Operations</h3>
<h4>Prototypes</h4>
<pre>
<code>template&lt;class E, class F&gt;
    struct vector_unary_traits {
        typedef vector_unary&lt;typename E::const_closure_type, F&gt; expression_type;
        typedef expression_type result_type;
     };

    // (- v) [i] = - v [i]
    template&lt;class E&gt;
     typename