/strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: If "new_node" is less than the greatest inserted key tree invariants are broken. This function is slightly faster than using "insert_before". </p>
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<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">void</span> <a name="idp72571696-bb"></a><span class="identifier">push_front</span><span class="special">(</span><span class="keyword">const</span> <span class="identifie