ionalIterator</span> first<span class="special">,</span> <span class="identifier">BidirectionalIterator</span> last<span class="special">)</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id-1.3.27.5.14.17.8.4"></a><h2>Description</h2>
<p>This routine takes in a set of requests stored in the iterator range <code class="computeroutput"></code>[first,last) and waits until at least one of the requests has completed. It then completes all of the requests it can, partitioning the 