gt;</span>
<span class="keyword">typename</span> <span class="identifier">range_difference</span><span class="special">&lt;</span><span class="identifier">SinglePassRange</span><span class="special">&gt;::</span><span class="identifier">type</span>
<span class="identifier">count</span><span class="special">(</span><span class="identifier">SinglePassRange</span><span class="special">&amp;</span> <span class="identifier">rng</span><span class="special">,</span> <span class="keyword">const</span> <span class="