e this:
</p>

<blockquote><pre>
<span class=keyword>typedef</span> <span class=identifier>flyweight</span><span class=special>&lt;</span><span class=identifier>key_value</span><span class=special>&lt;</span><span class=keyword>int</span><span class=special>,</span><span class=identifier>compute_fibonacci</span><span class=special>&gt;,</span><span class=identifier>no_tracking</span><span class=special>&gt;</span> <span class=identifier>fibonacci</span><span class=special>;</span>

<span class=keyword>struct