pan class="comment">// -----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="comment">// Unimplemented constructors and operators</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    <span class="comment">// -----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00083"></a><span class=