_DECL qua&lt;T, Q&gt; <a class="code" href="a00769.html#ga264e10708d58dd0ff53b7902a2bd2561">fastMix</a>(</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;        qua&lt;T, Q&gt; <span class="keyword">const</span>&amp; x,</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;        qua&lt;T, Q&gt; <span class="keyword">const</span>&amp; y,</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        T <span class="k