an> KeyNodePtrCompare<span class="special">&gt;</span> 
    <span class="keyword">static</span> <span class="identifier">node_ptr</span> 
    <a class="link" href="avltree_algorithms.html#idp56985040-bb"><span class="identifier">lower_bound</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">const_node_ptr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">KeyType</span> <span cla