24 #define CHECK_ERR(err, msg) { \  argument
25     if (err != Z_OK) { \
26         fprintf(stderr, "%s error: %d\n", msg, err); \
65     int err;  local
68     err = compress(compr, &comprLen, (const Bytef*)hello, len);
69     CHECK_ERR(err, "compress");
73     err = uncompress(uncompr, &uncomprLen, compr, comprLen);
74     CHECK_ERR(err, "uncompress");
95     int err;
107         fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
111         fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
125         fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
154         fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
176     int err;  local
183     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
184     CHECK_ERR(err, "deflateInit");
191         err = deflate(&c_stream, Z_NO_FLUSH);
192         CHECK_ERR(err, "deflate");
197         err = deflate(&c_stream, Z_FINISH);
198         if (err == Z_STREAM_END) break;
199         CHECK_ERR(err, "deflate");
202     err = deflateEnd(&c_stream);
203     CHECK_ERR(err, "deflateEnd");
213     int err;  local
226     err = inflateInit(&d_stream);
227     CHECK_ERR(err, "inflateInit");
231         err = inflate(&d_stream, Z_NO_FLUSH);
232         if (err == Z_STREAM_END) break;
233         CHECK_ERR(err, "inflate");
236     err = inflateEnd(&d_stream);
237     CHECK_ERR(err, "inflateEnd");
255     int err;  local
261     err = deflateInit(&c_stream, Z_BEST_SPEED);
262     CHECK_ERR(err, "deflateInit");
272     err = deflate(&c_stream, Z_NO_FLUSH);
273     CHECK_ERR(err, "deflate");
283     err = deflate(&c_stream, Z_NO_FLUSH);
284     CHECK_ERR(err, "deflate");
290     err = deflate(&c_stream, Z_NO_FLUSH);
291     CHECK_ERR(err, "deflate");
293     err = deflate(&c_stream, Z_FINISH);
294     if (err != Z_STREAM_END) {
298     err = deflateEnd(&c_stream);
299     CHECK_ERR(err, "deflateEnd");
309     int err;  local
321     err = inflateInit(&d_stream);
322     CHECK_ERR(err, "inflateInit");
327         err = inflate(&d_stream, Z_NO_FLUSH);
328         if (err == Z_STREAM_END) break;
329         CHECK_ERR(err, "large inflate");
332     err = inflateEnd(&d_stream);
333     CHECK_ERR(err, "inflateEnd");
351     int err;  local
358     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
359     CHECK_ERR(err, "deflateInit");
365     err = deflate(&c_stream, Z_FULL_FLUSH);
366     CHECK_ERR(err, "deflate");
371     err = deflate(&c_stream, Z_FINISH);
372     if (err != Z_STREAM_END) {
373         CHECK_ERR(err, "deflate");
375     err = deflateEnd(&c_stream);
376     CHECK_ERR(err, "deflateEnd");
388     int err;  local
400     err = inflateInit(&d_stream);
401     CHECK_ERR(err, "inflateInit");
407     CHECK_ERR(err, "inflate");
410     err = inflateSync(&d_stream);           /* but skip the damaged part */
411     CHECK_ERR(err, "inflateSync");
413     err = inflate(&d_stream, Z_FINISH);
414     if (err != Z_DATA_ERROR) {
419     err = inflateEnd(&d_stream);
420     CHECK_ERR(err, "inflateEnd");
433     int err;  local
439     err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
440     CHECK_ERR(err, "deflateInit");
442     err = deflateSetDictionary(&c_stream,
444     CHECK_ERR(err, "deflateSetDictionary");
453     err = deflate(&c_stream, Z_FINISH);
454     if (err != Z_STREAM_END) {
458     err = deflateEnd(&c_stream);
459     CHECK_ERR(err, "deflateEnd");
469     int err;  local
481     err = inflateInit(&d_stream);
482     CHECK_ERR(err, "inflateInit");
488         err = inflate(&d_stream, Z_NO_FLUSH);
489         if (err == Z_STREAM_END) break;
490         if (err == Z_NEED_DICT) {
495             err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
498         CHECK_ERR(err, "inflate with dict");
501     err = inflateEnd(&d_stream);
502     CHECK_ERR(err, "inflateEnd");