# include <boost/iostreams/filtering_streambuf.hpp>
# include <boost/iostreams/filter/gzip.hpp>
# include <boost/iostreams/device/file.hpp>
namespace io = boost::iostreams;
# include <boost/iostreams/filtering_streambuf.hpp>
# include <boost/iostreams/filter/gzip.hpp>
# include <boost/iostreams/device/file.hpp>
namespace io = boost::iostreams;
/// gz_ is only used to open files, the stream is accessed through is.
io::filtering_istreambuf gz_;
/// gz_ is only used to open files, the stream is accessed through is.
io::filtering_istreambuf gz_;