compressing data into gzip

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how to use gzip.compressstring() function using chilkat. the syntax is

bool CompressString(const char *inStr, const char *outCharset, CkByteData &outBytes);
// COMPRESSSTRING_END
// COMPRESSSTRINGTOFILE_BEGIN .but i dont know how to implement it in c++.
below is the code i tried to acheive the following but wasn't succeeded in it

CkGzip gzip;

bool success;
CkByteData data;
char buffer[100] = {0};
success = gzip.CompressString("helloworld", "utf8", data);
data = buffer;
cout << buffer;

if (success != true) {
printf("%s\n", gzip.lastErrorText());
return;
}
Note: i want "hello world" to be in compressed form as an output.

Posted 21-Aug-15 0:17am

Member 11460314

Updated 24-Aug-15 20:53pm

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CPallini · Answer 1 · 2015-08-21T00:43:00

The trivial way is using the system call to lauch the gzip executable. If you want ot use a library, have a look at zlib[^]. Finally if you want to implement yourlsef the compression algorithm...

[update]

Quote:
hey how to make a system call. like can you give me an example

of course (see also the documentation[^])

C

int rc = system("gzip foo.txt");
// TODO: check return status code

[/update]