special">(</span><span class="identifier">difference_type</span> <span class="identifier">n</span><span class="special">)</span>
    <span class="special">{</span>
        <span class="identifier">std</span><span class="special">::</span><span class="identifier">advance</span><span class="special">(</span><span class="identifier">_ringIter</span><span class="special">,</span><span class="identifier">n</span><span class="special">);</span>
    <span class="special">}</span>

    <span class="identifier">diff