#include <boost/iostreams/stream.hpp>
#include <boost/iostreams/device/null.hpp>

using namespace boost;
using namespace boost::iostreams;

struct customized_char_traits : public std::char_traits<char> {};

int main(int argc,char** argv) {

    stream<basic_null_sink<char>,customized_char_traits> tmpstr;

    return 0;
}