ass="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">result_of</span><span class="special">&lt;</span> <span class="identifier">Fn</span><span class="special">()</span> <span class="special">&gt;::</span><span class="identifier">type</span> <span class="special">&gt;</span>
<span class="identifier">wait_all_until_error</span><span class="s