| These classes provide a C++ stream interface to the zlib library. It allows you | |
| to do things like: | |
| gzofstream outf("blah.gz"); | |
| outf << "These go into the gzip file " << 123 << endl; | |
| It does this by deriving a specialized stream buffer for gzipped files, which is | |
| the way Stroustrup would have done it. :-> | |
| The gzifstream and gzofstream classes were originally written by Kevin Ruland | |
| and made available in the zlib contrib/iostream directory. The older version still | |
| compiles under gcc 2.xx, but not under gcc 3.xx, which sparked the development of | |
| this version. | |
| The new classes are as standard-compliant as possible, closely following the | |
| approach of the standard library's fstream classes. It compiles under gcc versions | |
| 3.2 and 3.3, but not under gcc 2.xx. This is mainly due to changes in the standard | |
| library naming scheme. The new version of gzifstream/gzofstream/gzfilebuf differs | |
| from the previous one in the following respects: | |
| - added showmanyc | |
| - added setbuf, with support for unbuffered output via setbuf(0,0) | |
| - a few bug fixes of stream behavior | |
| - gzipped output file opened with default compression level instead of maximum level | |
| - setcompressionlevel()/strategy() members replaced by single setcompression() | |
| The code is provided "as is", with the permission to use, copy, modify, distribute | |
| and sell it for any purpose without fee. | |
| Ludwig Schwardt | |
| <schwardt@sun.ac.za> | |
| DSP Lab | |
| Electrical & Electronic Engineering Department | |
| University of Stellenbosch | |
| South Africa |