"l00122"></a><span class="lineno">  122</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="comment">                // Unary updatable operators</span></div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="comment">                class_type&amp; operator=  (class_type const &amp; x);</span></div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<spa