rong>Return type</strong></span>:
          </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
                A model of <a class="link" href="../../../iterator/concepts/forward_iterator.html" title="Forward Iterator">Forward
                Iterator</a> if <code class="computeroutput"><span class="identifier">seq</span></code>
                is a <a class="link" href="../../concepts/forward_sequence.html" title="Forward Sequence">Forward
       