 <a name="idp72526688-bb"></a><span class="identifier">bounded_range</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">const_node_ptr</span> <span class="special">&amp;</span> header<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span> lower_key<span class="special">,</span> 
                <span class="keyword">const</span> <span class="identifier">KeyType</span> <span class