no">  255</span>&#160;}</div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;<span class="keyword">inline</span> point&lt;std::ptrdiff_t&gt; ifloor(point&lt;double&gt; <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;{</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;    <span class