> &lt;&lt; <span class="charliteral">&#39;p&#39;</span> &lt;&lt; s &lt;&lt; <span class="stringliteral">&quot;;\n&quot;</span>;</div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;          }</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;          </div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;          <span class="keywordflow">if</span>(v-&gt;_successors.size() == 0) {</div><div class="line"><a name="l