,</span> <span class="identifier">word_count_functor</span><span class="special">,</span>
        <span class="identifier">boost</span><span class="special">::</span><span class="identifier">bind</span><span class="special">(</span><span class="identifier">counter</span><span class="special">(),</span> <span class="identifier">_1</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">ref</span><span class="special">(</span><span clas