39 #define CHECK_ERR(err, msg) { \  argument
40     if (err != Z_OK) { \
41         fprintf(stderr, "%s error: %d\n", msg, err); \
109     int err;  local
112     err = compress(compr, &comprLen, (const Bytef*)hello, len);
113     CHECK_ERR(err, "compress");
117     err = uncompress(uncompr, &uncomprLen, compr, comprLen);
118     CHECK_ERR(err, "uncompress");
139     int err;
151         fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
155         fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
169         fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
198         fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
222     int err;  local
229     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
230     CHECK_ERR(err, "deflateInit");
237         err = deflate(&c_stream, Z_NO_FLUSH);
238         CHECK_ERR(err, "deflate");
243         err = deflate(&c_stream, Z_FINISH);
244         if (err == Z_STREAM_END) break;
245         CHECK_ERR(err, "deflate");
248     err = deflateEnd(&c_stream);
249     CHECK_ERR(err, "deflateEnd");
259     int err;  local
272     err = inflateInit(&d_stream);
273     CHECK_ERR(err, "inflateInit");
277         err = inflate(&d_stream, Z_NO_FLUSH);
278         if (err == Z_STREAM_END) break;
279         CHECK_ERR(err, "inflate");
282     err = inflateEnd(&d_stream);
283     CHECK_ERR(err, "inflateEnd");
301     int err;  local
307     err = deflateInit(&c_stream, Z_BEST_SPEED);
308     CHECK_ERR(err, "deflateInit");
318     err = deflate(&c_stream, Z_NO_FLUSH);
319     CHECK_ERR(err, "deflate");
329     err = deflate(&c_stream, Z_NO_FLUSH);
330     CHECK_ERR(err, "deflate");
336     err = deflate(&c_stream, Z_NO_FLUSH);
337     CHECK_ERR(err, "deflate");
339     err = deflate(&c_stream, Z_FINISH);
340     if (err != Z_STREAM_END) {
344     err = deflateEnd(&c_stream);
345     CHECK_ERR(err, "deflateEnd");
355     int err;  local
367     err = inflateInit(&d_stream);
368     CHECK_ERR(err, "inflateInit");
373         err = inflate(&d_stream, Z_NO_FLUSH);
374         if (err == Z_STREAM_END) break;
375         CHECK_ERR(err, "large inflate");
378     err = inflateEnd(&d_stream);
379     CHECK_ERR(err, "inflateEnd");
397     int err;  local
404     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
405     CHECK_ERR(err, "deflateInit");
411     err = deflate(&c_stream, Z_FULL_FLUSH);
412     CHECK_ERR(err, "deflate");
417     err = deflate(&c_stream, Z_FINISH);
418     if (err != Z_STREAM_END) {
419         CHECK_ERR(err, "deflate");
421     err = deflateEnd(&c_stream);
422     CHECK_ERR(err, "deflateEnd");
434     int err;  local
446     err = inflateInit(&d_stream);
447     CHECK_ERR(err, "inflateInit");
453     CHECK_ERR(err, "inflate");
456     err = inflateSync(&d_stream);           /* but skip the damaged part */
457     CHECK_ERR(err, "inflateSync");
459     err = inflate(&d_stream, Z_FINISH);
460     if (err != Z_DATA_ERROR) {
465     err = inflateEnd(&d_stream);
466     CHECK_ERR(err, "inflateEnd");
479     int err;  local
485     err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
486     CHECK_ERR(err, "deflateInit");
488     err = deflateSetDictionary(&c_stream,
490     CHECK_ERR(err, "deflateSetDictionary");
499     err = deflate(&c_stream, Z_FINISH);
500     if (err != Z_STREAM_END) {
504     err = deflateEnd(&c_stream);
505     CHECK_ERR(err, "deflateEnd");
515     int err;  local
527     err = inflateInit(&d_stream);
528     CHECK_ERR(err, "inflateInit");
534         err = inflate(&d_stream, Z_NO_FLUSH);
535         if (err == Z_STREAM_END) break;
536         if (err == Z_NEED_DICT) {
541             err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
544         CHECK_ERR(err, "inflate with dict");
547     err = inflateEnd(&d_stream);
548     CHECK_ERR(err, "inflateEnd");