rapping_output_filter</CODE></H4>

<P>You can express a line-wrapping Filter as an <A HREF="../concepts/output_filter.html">OutputFilter</A> as follows:</P>

<PRE class="broken_ie"><SPAN CLASS='preprocessor'>#include</SPAN> <A CLASS="header" HREF="../../../../boost/iostreams/concepts.hpp"><SPAN CLASS="literal">&lt;boost/iostreams/concepts.hpp&gt;</SPAN></A>    <SPAN CLASS="comment">// output_filter</SPAN>
<SPAN CLASS='preprocessor'>#include</SPAN> <A CLASS="header" HREF="../../../../boost/iostreams/operatio