Created .gz-archive not correct?

[BorysLysyansky]

I have tried to start an example output_test.cpp:
#include "ozstream.hpp"
#include <fstream>
int main(void) {
std::ofstream os("test.txt.gz");
zstream::ogzstream gz(os);
for (size_t i = 0; i < 2000; i++)
gz << i << std::endl;
return 0;
}
compiled it with the:
g++ -I.. zlib1.dll output_test.cpp
have run the binary:
./a.exe
The file test.txt.gz was created, but as I've tried to unzip it with:

gzip.exe -d test.txt.gz

I've got an error:
gzip: test.txt.gz: invalid compressed data--length error

What does it mean? Is it possible to decompress the obtained file with some
"standard" software?

Borys

[geromueller]

Hi, sorry for the late reply. I can not reproduce your error. If you still have the error, could you try to add a gz.close() after the loop?

[BorysLysyansky]

Dear Gero,

unfortunatelly, it did not help:

I have used the following output_test.cpp file with the smaller output:

#include "ozstream.hpp"
#include <fstream>
int main(void) {
std::ofstream os("test.txt.gz");
zstream::ogzstream gz(os);
for (size_t i = 0; i < 5; i++)
gz << i << std::endl;
gz.close();
return 0;
}

and have got the following test.txt.gz file (32 bytes):
First 16 Symbols: 1F 8B 08 00 00 00 00 00 00 03 33 E0 32 E4 32 E2
Second 16 Symbols: 32 E6 32 E1 02 00 0D 0A 1A B4 44 0D 0A 00 00 00

If I try to perform the command: gunzip.exe test.txt.gz,
I got the following error messages:

gunzip: test.txt.gz: invalid compressed data--crc error
gunzip: test.txt.gz: invalid compressed data--length error

Could you, please, have a look?

Borys