 of these members associates with <CODE>this</CODE> instance of <CODE>stream</CODE> a newly constructed instance of the Device <CODE>T</CODE> constructed from the given lists of arguments, if there is no such instance currently associated; otherwise, they throw <CODE>std::ios_base::failure</CODE>.  The <CODE>T</CODE> constructors involved must take all arguments by value or <CODE>const</CODE> reference. 
</P>
<P>
    It is not possible to specify a custom buffer size or putback buffer size using these membe