ow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span>  }</div>
</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span>};</div>
</div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span> </div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="keyword">inline</span> std::string tostr(<span class="keyword"