al">;</span>
    <span class="keyword">typedef</span> <span class="identifier">geo</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">&lt;</span><span class="identifier">point_type</span><span class="special">&gt;</span> <span class="identifier">polygon_type</span><span class="special">;</span>

    <span class="keyword">typedef</span> <span class="identifier">geo</span><span class="special">::