ize );</PRE>
    
<P>
    Assocaites the given instance of <CODE>T</CODE> with <CODE>this</CODE> instance of <CODE>stream_buffer</CODE>, if there is no such instance currently associated; otherwise, throws <CODE>std::ios_base::failure</CODE>. The second parameter determines the size of any buffers that need to be allocated; a value of zero indicates that i/o should be unbuffered. The third parameter determines the size of the putback buffer; it is relevant only if <CODE>Mode</CODE> is a refinement of <A HRE