class="special">(*</span><span class="identifier">lineStringIterCurrent_</span><span class="special">)-&gt;</span><span class="identifier">points</span><span class="special">.</span><span class="identifier">size</span><span class="special">();</span>
        <span class="special">}</span>
    <span class="special">}</span>

    <span class="keyword">void</span> <span class="identifier">advance</span><span class="special">(</span><span class="identifier">difference_type</span> <span class="identifier">n</spa