ass="keyword">struct</span> <span class="identifier">my_box</span>
<span class="special">{</span>
    <span class="identifier">P</span> <span class="identifier">ll</span><span class="special">,</span> <span class="identifier">ur</span><span class="special">;</span>
<span class="special">};</span>

<span class="comment">// Register the box type</span>
<span class="identifier">BOOST_GEOMETRY_REGISTER_BOX_TEMPLATED</span><span class="special">(</span><span class="identifier">my_box</span><span class="special">