t&amp; ret, <span class="keyword">const</span> NTL::Vec&lt;Ctxt&gt;&amp; poly, <span class="keyword">const</span> Ctxt&amp; x);</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment">// A useful helper class</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160; </div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</s