:
        </p>
<p>
</p>
<pre class="programlisting"><span class="identifier">reader</span> <span class="identifier">r</span><span class="special">;</span>
<span class="identifier">generate</span><span class="special">(</span><span class="identifier">outiter</span><span class="special">,</span> <span class="char">'{'</span> <span class="special">&lt;&lt;</span> <span class="identifier">int_</span><span class="special">[</span><span class="identifier">boost</span><span class="special">::</span><span class="id