package IO::Compress::Zlib::Constants ; use strict ; use warnings; use bytes; require Exporter; our ($VERSION, @ISA, @EXPORT); $VERSION = '2.102'; @ISA = qw(Exporter); @EXPORT= qw( ZLIB_HEADER_SIZE ZLIB_TRAILER_SIZE ZLIB_CMF_CM_OFFSET ZLIB_CMF_CM_BITS ZLIB_CMF_CM_DEFLATED ZLIB_CMF_CINFO_OFFSET ZLIB_CMF_CINFO_BITS ZLIB_CMF_CINFO_MAX ZLIB_FLG_FCHECK_OFFSET ZLIB_FLG_FCHECK_BITS ZLIB_FLG_FDICT_OFFSET ZLIB_FLG_FDICT_BITS ZLIB_FLG_LEVEL_OFFSET ZLIB_FLG_LEVEL_BITS ZLIB_FLG_LEVEL_FASTEST ZLIB_FLG_LEVEL_FAST ZLIB_FLG_LEVEL_DEFAULT ZLIB_FLG_LEVEL_SLOWEST ZLIB_FDICT_SIZE ); # Constant names derived from RFC1950 use constant ZLIB_HEADER_SIZE => 2; use constant ZLIB_TRAILER_SIZE => 4; use constant ZLIB_CMF_CM_OFFSET => 0; use constant ZLIB_CMF_CM_BITS => 0xF ; # 0b1111 use constant ZLIB_CMF_CM_DEFLATED => 8; use constant ZLIB_CMF_CINFO_OFFSET => 4; use constant ZLIB_CMF_CINFO_BITS => 0xF ; # 0b1111; use constant ZLIB_CMF_CINFO_MAX => 7; use constant ZLIB_FLG_FCHECK_OFFSET => 0; use constant ZLIB_FLG_FCHECK_BITS => 0x1F ; # 0b11111; use constant ZLIB_FLG_FDICT_OFFSET => 5; use constant ZLIB_FLG_FDICT_BITS => 0x1 ; # 0b1; use constant ZLIB_FLG_LEVEL_OFFSET => 6; use constant ZLIB_FLG_LEVEL_BITS => 0x3 ; # 0b11; use constant ZLIB_FLG_LEVEL_FASTEST => 0; use constant ZLIB_FLG_LEVEL_FAST => 1; use constant ZLIB_FLG_LEVEL_DEFAULT => 2; use constant ZLIB_FLG_LEVEL_SLOWEST => 3; use constant ZLIB_FDICT_SIZE => 4; 1;