N> <SPAN CLASS="literal">&lt;iostream&gt;</SPAN>
<SPAN CLASS="preprocessor">#include</SPAN> <A CLASS="header" HREF="../../../../boost/iostreams/filtering_streambuf.hpp"><SPAN CLASS="literal">&lt;boost/iostreams/filtering_streambuf.hpp&gt;</SPAN></A>
<SPAN CLASS="preprocessor">#include</SPAN> <A CLASS="header" HREF="../../../../boost/iostreams/copy.hpp"><SPAN CLASS="literal">&lt;boost/iostreams/copy.hpp&gt;</SPAN></A>
<SPAN CLASS="preprocessor">#include</SPAN> <A CLASS="header" HREF="../../../../boost/iostre