   <span class="phrase"><a name="geometry.reference.core.tag_cast.example"></a></span><a class="link" href="tag_cast.html#geometry.reference.core.tag_cast.example">Example</a>
        </h6>
<p>
          Check if the polygon_tag can be casted to the areal_tag
        </p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span cla