1Possible upgrades to gzfilebuf: 2 3- The ability to do putback (e.g. putbackfail) 4 5- The ability to seek (zlib supports this, but could be slow/tricky) 6 7- Simultaneous read/write access (does it make sense?) 8 9- Support for ios_base::ate open mode 10 11- Locale support? 12 13- Check public interface to see which calls give problems 14 (due to dependence on library internals) 15 16- Override operator<<(ostream&, gzfilebuf*) to allow direct copying 17 of stream buffer to stream ( i.e. os << is.rdbuf(); ) 18