ackward</span><span class="special">(</span><span class="identifier">Range</span> <span class="special">&amp;</span> range<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">T</span> <span class="special">&amp;</span> x<span class="special">)</span><span class="special">;</span>
    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> BidiIter<span class="special">,</span> <span class="keyword">typename</span> Pred