     <img src="theme/note.gif" width="16" height="16"><b>char and wchar_t
          operands</b><br>
          <br>
           The careful reader may notice that the parser expression has
          <tt class="quotes">','</tt> instead of <tt>ch_p(',')</tt> as the
          previous examples did. This is ok due to C++ syntax rules of
          conversion. There are <tt>&gt;&gt;</tt> operators that are overloaded
          to accept a <tt>char</tt> or <tt>wchar_t</tt> argument on its left or
          right (b