#include <stdlib.h>
#include <stdio.h>
#include <zlib.h>

#define DATALENGTH 1024*64

/* Writes an int array to a gzipped file
 * This has been tested with arrays from 1 to 16M integers.
 */
main() {
  int i;
  int data[DATALENGTH];
  gzFile *fp;

  if ((fp=gzopen("data.gz", "wb")) == NULL) {
    printf ("Couldn't open file for writing\n");
    exit(1);
  }
  for (i=0; i<DATALENGTH; i++)
    data[i]=i;
  gzwrite(fp, data, DATALENGTH*sizeof(int));
  gzclose(fp);
}