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