span class="keyword">bool</span> <a class="link" href="avltree_algorithms.html#idp57121680-bb"><span class="identifier">is_header</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="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id-1.3.20.42.6.3.4"></a><h2>Description</h2>
<p><a class="li