no">   75</span>&#160;        qua&lt;T, Q&gt; <span class="keyword">const</span>&amp; prev,</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        qua&lt;T, Q&gt; <span class="keyword">const</span>&amp; curr,</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;        qua&lt;T, Q&gt; <span class="keyword">const</span>&amp; next);</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div><div class="line"><a nam