lushable</A> and <A HREF='../functions/flush.html'><CODE>flush</CODE></A> returns <CODE>true</CODE> when invoked on <I>each</I> component.  A return value of <CODE>true</CODE> guarantees that all buffered data has been successfully forwarded.</P>

<A NAME="wchain"></A>
<H2>Class Template <CODE>wchain</CODE></H2>


<PRE CLASS="broken_ie"><SPAN CLASS="keyword">template</SPAN>&lt; <SPAN CLASS="keyword">typename</SPAN> Mode,
          <SPAN CLASS="keyword">typename</SPAN> Ch    = <SPAN CLASS="keyword">wchar_t</