ier">functions</span><span class="special">)</span> <span class="special">...</span> <span class="special">)</span> <span class="special">);</span>
    <span class="comment">// fill results vector</span>
    <span class="identifier">future_t</span> <span class="identifier">future</span><span class="special">;</span>
    <span class="keyword">while</span> <span class="special">(</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">fibers</span><span class="speci