22 #define CHECK_ERR(err, msg) { \  argument
23     if (err != Z_OK) { \
24         fprintf(stderr, "%s error: %d\n", msg, err); \
92     int err;  local
95     err = compress(compr, &comprLen, (const Bytef*)hello, len);
96     CHECK_ERR(err, "compress");
100     err = uncompress(uncompr, &uncomprLen, compr, comprLen);
101     CHECK_ERR(err, "uncompress");
122     int err;
134         fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
138         fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
152         fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
181         fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
205     int err;  local
212     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
213     CHECK_ERR(err, "deflateInit");
220         err = deflate(&c_stream, Z_NO_FLUSH);
221         CHECK_ERR(err, "deflate");
226         err = deflate(&c_stream, Z_FINISH);
227         if (err == Z_STREAM_END) break;
228         CHECK_ERR(err, "deflate");
231     err = deflateEnd(&c_stream);
232     CHECK_ERR(err, "deflateEnd");
242     int err;  local
255     err = inflateInit(&d_stream);
256     CHECK_ERR(err, "inflateInit");
260         err = inflate(&d_stream, Z_NO_FLUSH);
261         if (err == Z_STREAM_END) break;
262         CHECK_ERR(err, "inflate");
265     err = inflateEnd(&d_stream);
266     CHECK_ERR(err, "inflateEnd");
284     int err;  local
290     err = deflateInit(&c_stream, Z_BEST_SPEED);
291     CHECK_ERR(err, "deflateInit");
301     err = deflate(&c_stream, Z_NO_FLUSH);
302     CHECK_ERR(err, "deflate");
312     err = deflate(&c_stream, Z_NO_FLUSH);
313     CHECK_ERR(err, "deflate");
319     err = deflate(&c_stream, Z_NO_FLUSH);
320     CHECK_ERR(err, "deflate");
322     err = deflate(&c_stream, Z_FINISH);
323     if (err != Z_STREAM_END) {
327     err = deflateEnd(&c_stream);
328     CHECK_ERR(err, "deflateEnd");
338     int err;  local
350     err = inflateInit(&d_stream);
351     CHECK_ERR(err, "inflateInit");
356         err = inflate(&d_stream, Z_NO_FLUSH);
357         if (err == Z_STREAM_END) break;
358         CHECK_ERR(err, "large inflate");
361     err = inflateEnd(&d_stream);
362     CHECK_ERR(err, "inflateEnd");
380     int err;  local
387     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
388     CHECK_ERR(err, "deflateInit");
394     err = deflate(&c_stream, Z_FULL_FLUSH);
395     CHECK_ERR(err, "deflate");
400     err = deflate(&c_stream, Z_FINISH);
401     if (err != Z_STREAM_END) {
402         CHECK_ERR(err, "deflate");
404     err = deflateEnd(&c_stream);
405     CHECK_ERR(err, "deflateEnd");
417     int err;  local
429     err = inflateInit(&d_stream);
430     CHECK_ERR(err, "inflateInit");
435     err = inflate(&d_stream, Z_NO_FLUSH);
436     CHECK_ERR(err, "inflate");
439     err = inflateSync(&d_stream);           /* but skip the damaged part */
440     CHECK_ERR(err, "inflateSync");
442     err = inflate(&d_stream, Z_FINISH);
443     if (err != Z_STREAM_END) {
447     err = inflateEnd(&d_stream);
448     CHECK_ERR(err, "inflateEnd");
461     int err;  local
467     err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
468     CHECK_ERR(err, "deflateInit");
470     err = deflateSetDictionary(&c_stream,
472     CHECK_ERR(err, "deflateSetDictionary");
481     err = deflate(&c_stream, Z_FINISH);
482     if (err != Z_STREAM_END) {
486     err = deflateEnd(&c_stream);
487     CHECK_ERR(err, "deflateEnd");
497     int err;  local
509     err = inflateInit(&d_stream);
510     CHECK_ERR(err, "inflateInit");
516         err = inflate(&d_stream, Z_NO_FLUSH);
517         if (err == Z_STREAM_END) break;
518         if (err == Z_NEED_DICT) {
523             err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
526         CHECK_ERR(err, "inflate with dict");
529     err = inflateEnd(&d_stream);
530     CHECK_ERR(err, "inflateEnd");