ssRange</span><span class="special">&amp;</span> <span class="identifier">rng</span><span class="special">,</span>
    <span class="keyword">typename</span> <span class="identifier">range_iterator</span><span class="special">&lt;</span><span class="keyword">const</span> <span class="identifier">RandomAccessRange</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">middle</span><span class="special">);</span>

<span class="keyword">template</span><span class=