ss="identifier">blue</span><span class="special">);</span>

    <span class="identifier">std</span><span class="special">::</span><span class="identifier">deque</span><span class="special">&lt;</span><span class="identifier">polygon</span><span class="special">&gt;</span> <span class="identifier">output</span><span class="special">;</span>
    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">in