friend 46 lib/zlib/contrib/iostream/zfstream.h friend class gzifstream; friend 47 lib/zlib/contrib/iostream/zfstream.h friend class gzofstream; friend 48 lib/zlib/contrib/iostream/zfstream.h friend gzofstream &setcompressionlevel( gzofstream &, int ); friend 49 lib/zlib/contrib/iostream/zfstream.h friend gzofstream &setcompressionstrategy( gzofstream &, int ); friend 93 lib/zlib/contrib/iostream/zfstream.h friend gzofstream &operator<<(gzofstream &, const gzomanip<T> &); friend 418 lib/zlib/contrib/iostream3/zfstream.h friend gzofstream&