 <span class="special">==</span> <span class="keyword">true</span><span class="special">)</span> <span class="special">&gt;&gt;</span> <span class="identifier">int_</span><span class="special">);</span>
</pre>
<p>
          </p>
<p>
            This example simulates the "classic" <code class="computeroutput"><span class="identifier">while_p</span></code>
            parser. Here, the kleene loop will exit once the condition, <code class="computeroutput"><span class="identifier">c</span></code>, becomes tru