//show composition of indent filter with ostream.
#include <boost/iostreams/filter/indent.hpp>
#include <boost/iostreams/filtering_stream.hpp>
#include <boost/iostreams/compose.hpp>
#include <iostream>

void test_conversion(std::ostream& sout)
{
    sout<<"inside test_conversion\n";
}

using namespace boost::iostreams;

int main(void)
{
; filtering_ostream mout
; mout.push
  ( compose
    ( indent_filter<>()
    , std::cout
    )
  )
; mout<<"line1\n"
#if 0
; ++mout
; mout<<"line1.1"<<std::endl
; mout<<indent_in<<"line1.1.1"<<std::endl
; test_conversion(mout)
#if 0
; mout<<"line1.1.2"<<std::endl
#endif
; --mout
; unsigned u=22
; mout<<"line1.2:unsigned="<<u<<std::endl
; float f=3.1416
; mout<<"line1.3:float="<<f<<std::endl
; --mout
; --mout
; mout<<"line2\n"
#endif
; return 0
;
}
//Expected output:
/*
line1
  line1.1
    line1.1.1
    inside test_conversion
  line1.2:unsigned=22
  line1.3:float=3.1416
line2
 */