Chris@4:                         ZLib for Ada thick binding (ZLib.Ada)
Chris@4:                         Release 1.3
Chris@4: 
Chris@4: ZLib.Ada is a thick binding interface to the popular ZLib data
Chris@4: compression library, available at http://www.gzip.org/zlib/.
Chris@4: It provides Ada-style access to the ZLib C library.
Chris@4: 
Chris@4: 
Chris@4:         Here are the main changes since ZLib.Ada 1.2:
Chris@4: 
Chris@4: - Attension: ZLib.Read generic routine have a initialization requirement
Chris@4:   for Read_Last parameter now. It is a bit incompartible with previous version,
Chris@4:   but extends functionality, we could use new parameters Allow_Read_Some and
Chris@4:   Flush now.
Chris@4: 
Chris@4: - Added Is_Open routines to ZLib and ZLib.Streams packages.
Chris@4: 
Chris@4: - Add pragma Assert to check Stream_Element is 8 bit.
Chris@4: 
Chris@4: - Fix extraction to buffer with exact known decompressed size. Error reported by
Chris@4:   Steve Sangwine.
Chris@4: 
Chris@4: - Fix definition of ULong (changed to unsigned_long), fix regression on 64 bits
Chris@4:   computers. Patch provided by Pascal Obry.
Chris@4: 
Chris@4: - Add Status_Error exception definition.
Chris@4: 
Chris@4: - Add pragma Assertion that Ada.Streams.Stream_Element size is 8 bit.
Chris@4: 
Chris@4: 
Chris@4:         How to build ZLib.Ada under GNAT
Chris@4: 
Chris@4: You should have the ZLib library already build on your computer, before
Chris@4: building ZLib.Ada. Make the directory of ZLib.Ada sources current and
Chris@4: issue the command:
Chris@4: 
Chris@4:   gnatmake test -largs -L<directory where libz.a is> -lz
Chris@4: 
Chris@4: Or use the GNAT project file build for GNAT 3.15 or later:
Chris@4: 
Chris@4:   gnatmake -Pzlib.gpr -L<directory where libz.a is>
Chris@4: 
Chris@4: 
Chris@4:         How to build ZLib.Ada under Aonix ObjectAda for Win32 7.2.2
Chris@4: 
Chris@4: 1. Make a project with all *.ads and *.adb files from the distribution.
Chris@4: 2. Build the libz.a library from the ZLib C sources.
Chris@4: 3. Rename libz.a to z.lib.
Chris@4: 4. Add the library z.lib to the project.
Chris@4: 5. Add the libc.lib library from the ObjectAda distribution to the project.
Chris@4: 6. Build the executable using test.adb as a main procedure.
Chris@4: 
Chris@4: 
Chris@4:         How to use ZLib.Ada
Chris@4: 
Chris@4: The source files test.adb and read.adb are small demo programs that show
Chris@4: the main functionality of ZLib.Ada.
Chris@4: 
Chris@4: The routines from the package specifications are commented.
Chris@4: 
Chris@4: 
Chris@4: Homepage: http://zlib-ada.sourceforge.net/
Chris@4: Author: Dmitriy Anisimkov <anisimkov@yahoo.com>
Chris@4: 
Chris@4: Contributors: Pascal Obry <pascal@obry.org>, Steve Sangwine <sjs@essex.ac.uk>