| 1 | ZLib for Ada thick binding (ZLib.Ada) |
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| 2 | Release 1.3 |
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| 3 | |
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| 4 | ZLib.Ada is a thick binding interface to the popular ZLib data |
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| 5 | compression library, available at http://www.gzip.org/zlib/. |
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| 6 | It provides Ada-style access to the ZLib C library. |
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| 7 | |
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| 8 | |
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| 9 | Here are the main changes since ZLib.Ada 1.2: |
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| 10 | |
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| 11 | - Attension: ZLib.Read generic routine have a initialization requirement |
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| 12 | for Read_Last parameter now. It is a bit incompartible with previous version, |
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| 13 | but extends functionality, we could use new parameters Allow_Read_Some and |
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| 14 | Flush now. |
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| 15 | |
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| 16 | - Added Is_Open routines to ZLib and ZLib.Streams packages. |
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| 17 | |
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| 18 | - Add pragma Assert to check Stream_Element is 8 bit. |
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| 19 | |
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| 20 | - Fix extraction to buffer with exact known decompressed size. Error reported by |
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| 21 | Steve Sangwine. |
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| 22 | |
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| 23 | - Fix definition of ULong (changed to unsigned_long), fix regression on 64 bits |
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| 24 | computers. Patch provided by Pascal Obry. |
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| 25 | |
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| 26 | - Add Status_Error exception definition. |
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| 27 | |
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| 28 | - Add pragma Assertion that Ada.Streams.Stream_Element size is 8 bit. |
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| 29 | |
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| 30 | |
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| 31 | How to build ZLib.Ada under GNAT |
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| 32 | |
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| 33 | You should have the ZLib library already build on your computer, before |
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| 34 | building ZLib.Ada. Make the directory of ZLib.Ada sources current and |
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| 35 | issue the command: |
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| 36 | |
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| 37 | gnatmake test -largs -L<directory where libz.a is> -lz |
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| 38 | |
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| 39 | Or use the GNAT project file build for GNAT 3.15 or later: |
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| 40 | |
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| 41 | gnatmake -Pzlib.gpr -L<directory where libz.a is> |
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| 42 | |
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| 43 | |
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| 44 | How to build ZLib.Ada under Aonix ObjectAda for Win32 7.2.2 |
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| 45 | |
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| 46 | 1. Make a project with all *.ads and *.adb files from the distribution. |
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| 47 | 2. Build the libz.a library from the ZLib C sources. |
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| 48 | 3. Rename libz.a to z.lib. |
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| 49 | 4. Add the library z.lib to the project. |
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| 50 | 5. Add the libc.lib library from the ObjectAda distribution to the project. |
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| 51 | 6. Build the executable using test.adb as a main procedure. |
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| 52 | |
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| 53 | |
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| 54 | How to use ZLib.Ada |
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| 55 | |
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| 56 | The source files test.adb and read.adb are small demo programs that show |
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| 57 | the main functionality of ZLib.Ada. |
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| 58 | |
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| 59 | The routines from the package specifications are commented. |
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| 60 | |
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| 61 | |
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| 62 | Homepage: http://zlib-ada.sourceforge.net/ |
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| 63 | Author: Dmitriy Anisimkov <anisimkov@yahoo.com> |
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| 64 | |
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| 65 | Contributors: Pascal Obry <pascal@obry.org>, Steve Sangwine <sjs@essex.ac.uk> |
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