1 These classes provide a C++ stream interface to the zlib library. It allows you
   2 to do things like:
   3 
   4   gzofstream outf("blah.gz");
   5   outf << "These go into the gzip file " << 123 << endl;
   6 
   7 It does this by deriving a specialized stream buffer for gzipped files, which is
   8 the way Stroustrup would have done it. :->
   9 
  10 The gzifstream and gzofstream classes were originally written by Kevin Ruland
  11 and made available in the zlib contrib/iostream directory. The older version still
  12 compiles under gcc 2.xx, but not under gcc 3.xx, which sparked the development of
  13 this version.
  14 
  15 The new classes are as standard-compliant as possible, closely following the
  16 approach of the standard library's fstream classes. It compiles under gcc versions
  17 3.2 and 3.3, but not under gcc 2.xx. This is mainly due to changes in the standard
  18 library naming scheme. The new version of gzifstream/gzofstream/gzfilebuf differs
  19 from the previous one in the following respects:
  20 - added showmanyc
  21 - added setbuf, with support for unbuffered output via setbuf(0,0)
  22 - a few bug fixes of stream behavior
  23 - gzipped output file opened with default compression level instead of maximum level
  24 - setcompressionlevel()/strategy() members replaced by single setcompression()
  25 
  26 The code is provided "as is", with the permission to use, copy, modify, distribute
  27 and sell it for any purpose without fee.
  28 
  29 Ludwig Schwardt
  30 <schwardt@sun.ac.za>
  31 
  32 DSP Lab
  33 Electrical & Electronic Engineering Department
  34 University of Stellenbosch
  35 South Africa