>
        <span class="special">...</span>
    <span class="special">}</span>

<span class="keyword">public</span><span class="special">:</span>
    <span class="keyword">void</span> <span class="identifier">f</span><span class="special">(</span><span class="special">...</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">contract</span><span class="special">::</span><span class="identifier">virtual_</span><span class="special">*<