boost] filtering_streambuf<input> 데이터를 string에 저장하기

출처: http://stackoverflow.com/questions/5461972/boostfiltering-streambuf-with-gzip-decompressor-how-to-access-line-by-line

ifstream fin_unmapped_read(output.c_str(), ios_base::in | ios_base::binary);

filtering_streambuf<input> in;

in.push(bzip2_decompressor());

in.push(fin_unmapped_read);

//boost::iostreams::copy(in, cout);

std::istream incoming(&in);
getline(incoming, transfer);