39</span>    merged.upper.y = ::fmax(lhs.upper.y, rhs.upper.y);</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>    merged.upper.z = ::fmax(lhs.upper.z, rhs.upper.z);</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>    merged.lower.x = ::fmin(lhs.lower.x, rhs.lower.x);</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>    merged.lower.y = ::fmin(lhs.lower.y, rhs.lower.y);</div>
<div cl