pecial">::</span><span class="identifier">endl</span><span class="special">;</span>

    <span class="comment">// create some polygons and fill the spatial index</span>
    <span class="keyword">for</span> <span class="special">(</span> <span class="keyword">unsigned</span> <span class="identifier">i</span> <span class="special">=</span> <span class="number">0</span> <span class="special">;</span> <span class="identifier">i</span> <span class="special">&lt;</span> <span class="number">10</span> <span class=