er">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">make</span><span class="special">&lt;</span><span class="identifier">box</span><span class="special">&gt;(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">2</span><span class="special">,</span> <span class="number">2</span><span class="special">);</span>
    <span class