<span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span>

<span class="special">}</span> <span class="comment">// namespace 'boost'</span>


<span class="comment">// The required Range functions. These should be defined in the same namespace</span>
<span class="comment">// as Ring.</span>

<span class="keyword">inline</span> <span class="ident