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1zlib 0.79 is a beta version of a general purpose compression library. 1zlib 0.8 is a beta version of a general purpose compression library.
2This is the first version with no known bugs. (There may still be
3problem on SGI, to be checked.)
2 4
3The data format used by the zlib library is described in the 5The data format used by the zlib library is described in the
4file zlib-3.1.doc, deflate-1.1.doc and gzip-4.1.doc, available 6file zlib-3.1.doc, deflate-1.1.doc and gzip-4.1.doc, available
@@ -9,15 +11,18 @@ zlib.h. A usage example of the library is given in the file example.c
9which also tests that the library is working correctly. 11which also tests that the library is working correctly.
10To compile all files and run the test program, just type: make test 12To compile all files and run the test program, just type: make test
11 13
12The changes made in version 0.79 are documented in the file ChangeLog. 14The changes made in version 0.8 are documented in the file ChangeLog.
13The main changes since 0.71 are: 15The main changes since 0.71 are:
14- add fast inflate (inffast.c) 16- added fast inflate (inffast.c)
15- In gzio destroy(), don't reference a freed structure 17- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
16 18 is incompatible with previous versions of zlib which returned Z_OK.
17On MSDOS, this version works in large and small model with MSC; in 19- work around a nasty TurboC compiler bug
18small model only with TurboC (bug being investigated). For both 20
19compilers, small model compression works only for small values of 21On MSDOS, this version works in both large and small model. However
20MEM_LEVEL and WBITS (see zutil.h), and requires -DUSE_CALLOC. 22small model compression works only for small values of MEM_LEVEL and
23WBITS (see zutil.h). Small model decompression should work up to WBITS=15.
24This version of zlib does not yet support small or medium model with
25far allocation of big objects.
21 26
22 27
23 Copyright (C) 1995 Jean-loup Gailly and Mark Adler 28 Copyright (C) 1995 Jean-loup Gailly and Mark Adler