s="programlisting"><span class="keyword">template</span><span class="special">&lt;</span>
    <span class="keyword">typename</span> <span class="identifier">I</span>
    <span class="special">&gt;</span>
<span class="keyword">typename</span> <a class="link" href="../metafunctions/deref_data.html" title="deref_data"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">deref_data</span></code></a><span class="special">&lt;</span><span cl