ifier>equal_range</span><span class=special>(</span><span class=string>&quot;White&quot;</span><span class=special>);</span>
</pre></blockquote>

<p>
On the other hand, partial searches without specifying the first keys are not
allowed.
</p>

<p>
By default, the corresponding <code>std::less</code> predicate is used
for each subkey of a composite key. Alternate comparison predicates can
be specified with <a href="../reference/key_extraction.html#composite_key_compare">
<code>composite_key_compare</code></a>