lt; <span class="stringliteral">&quot;];\n&quot;</span>;</div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;          <span class="keywordflow">for</span>(<span class="keyword">const</span> <span class="keyword">auto</span> s : v-&gt;_successors) {</div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;            os &lt;&lt; <span class="charliteral">&#39;p&#39;</span> &lt;&lt; v.get() &lt;&lt; <span class="stringliteral">&quot; -&gt; &quot;</span