"http://www.boost.org/libs/mpl/index.html" target="_top">MPL</a>
      and <a href="http://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>
      iterators describe positions, and provide access to data within an underlying
      <a class="link" href="sequence.html" title="Sequence">Sequence</a>.
    </p>
<h4>
<a name="fusion.iterator.h0"></a>
      <span><a name="fusion.iterator.header"></a></span><a class="link" href="iterator.html#fusion.iterator.header">Header</a>
    </h4>
<pre cl