gzofstream outf;

gzifstream inf;

char buf[80];

outf.open("test1.txt.gz");

outf << "The quick brown fox sidestepped the lazy canine\n"

<< 1.3 << "\nPlan " << 9 << std::endl;

outf.close();

std::cout << "Wrote the following message to 'test1.txt.gz' (check with zcat or zless):\n"

<< "The quick brown fox sidestepped the lazy canine\n"

<< 1.3 << "\nPlan " << 9 << std::endl;

std::cout << "\nReading 'test1.txt.gz' (buffered) produces:\n";

inf.open("test1.txt.gz");

while (inf.getline(buf,80,'\n')) {

std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";

}

inf.close();

outf.rdbuf()->pubsetbuf(0,0);

outf.open("test2.txt.gz");

outf << setcompression(Z_NO_COMPRESSION)

<< "The quick brown fox sidestepped the lazy canine\n"

<< 1.3 << "\nPlan " << 9 << std::endl;

outf.close();

std::cout << "\nWrote the same message to 'test2.txt.gz' in uncompressed form";

std::cout << "\nReading 'test2.txt.gz' (unbuffered) produces:\n";

inf.rdbuf()->pubsetbuf(0,0);

inf.open("test2.txt.gz");

while (inf.getline(buf,80,'\n')) {

std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";

}

inf.close();

return 0;