n class="special">*(</span><span class="identifier">char_</span><span class="special">(</span><span class="char">','</span><span class="special">)</span> <span class="special">&gt;&gt;</span> <span class="identifier">double_</span><span class="special">)</span>
</pre>
<p>
          Notice <code class="computeroutput"><span class="identifier">char_</span><span class="special">(</span><span class="char">','</span><span class="special">)</span></code>. It is
          a literal character parser that can recogn