Test code for checking suitability of zlib for reading and writing compressed data.

r1490 | ffr | 2007-02-15 10:05:00 +1100 (Thu, 15 Feb 2007) | 2 lines

site_ansto/TESTS/check_zlib/mkdata.c

@@ -0,0 +1,23 @@
+#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);
+}