> <span class="number">90</span><span class="special">)</span>
        <span class="special">;</span>
    <span class="special">}</span>

<span class="special">}</span> <span class="identifier">tens</span><span class="special">;</span>
</pre>
<p>
        </p>
<p>
          and, finally, for ones (1..9):
        </p>
<p>
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">ones_</span> <span class="special">:</span> <span class="identifier">qi</span><span class="speci