ass="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>    merged.lower.z = ::fmin(lhs.lower.z, rhs.lower.z);</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>    <span class="keywordflow">return</span> merged;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>}</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span> </div>
<div class="line"><a id="l00047" name="l00047"><