osure.h4"></a>
          <span class="phrase"><a name="geometry.reference.core.closure.example"></a></span><a class="link" href="closure.html#geometry.reference.core.closure.example">Example</a>
        </h6>
<p>
          Examine if a polygon is defined as "should be closed"
        </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">#includ