n class="keywordtype">int</span> val) <span class="keyword">const</span> <span class="comment">// Virtual.</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>{</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>  <span class="keyword">using </span>std::string;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span> </div>
<div class="line"><a id="l00104" name="l00104"></a><span class="line