;&lt;</span></code>,
            and so the proper overload of <code class="computeroutput"><span class="special">&lt;&lt;</span></code>
            is used, converting <code class="computeroutput"><span class="char">','</span></code> into
            a character literal generator.
          </p>
<p>
            The problem with omitting the <code class="computeroutput"><span class="identifier">lit</span></code>
            should be obvious: <code class="computeroutput"><span class="char">'a'</span> <span 