</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;  <span class="keywordtype">void</span> CheckNodeBounds(<a class="code" href="namespaceoperations__research.html#a272bcc4d6ee0e87a7fc430a5cb13c582">NodeIndex</a> node_index) {</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    DCHECK_LE(0, node_index);</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;  