yword">template</SPAN>&lt;<SPAN CLASS="keyword">typename</SPAN> U&gt;
    <B>stream</B>([<SPAN CLASS="keyword">const</SPAN>] U& u);

    <SPAN CLASS="keyword">template</SPAN>&lt;<SPAN CLASS="keyword">typename</SPAN> U1, <SPAN CLASS="keyword">typename</SPAN> U2&gt;
    <B>stream</B>([<SPAN CLASS="keyword">const</SPAN>] U1& u1, <SPAN CLASS="keyword">const</SPAN> U2& u2);

        <SPAN CLASS="omitted">...</SPAN>

    template&lt;<SPAN CLASS="keyword">typename</SPAN> U1, <SPAN CLASS="omitted">...</SPAN>, <SPAN