>;</span></pre>Return index for value argument. </li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">index_type</span><span class="special">,</span> <span class="identifier">index_type</span> <span class="special">&gt;</span> <a name="idm14164-bb"></a><span class="identifier">update</span><span class="special">(</span><span class="keyword">const</