| | 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 |
| | 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 |
| |
|
