iterator a given number of positions forward
          or backward.
        </li>
<li class="listitem">
          <a class="link" href="iterator/algorithms/distance.html" title="Function template distance()"><code class="computeroutput"><span class="identifier">distance</span><span class="special">.</span><span class="identifier">hpp</span></code></a>:
          Provides <code class="computeroutput"><span class="identifier">distance</span><span class="special">()</span></code>
          function for computi