src/zlib/deflate.c

383     s->match_length = s->prev_length = MIN_MATCH-1;
1122     s->match_length = s->prev_length = MIN_MATCH-1;
1656          * At this point we have always match_length < MIN_MATCH
1663             s->match_length = longest_match (s, hash_head);
1666         if (s->match_length >= MIN_MATCH) {
1667             check_match(s, s->strstart, s->match_start, s->match_length);
1670                            s->match_length - MIN_MATCH, bflush);
1672             s->lookahead -= s->match_length;
1678             if (s->match_length <= s->max_insert_length &&
1680                 s->match_length--; /* string at strstart already in table */
1687                 } while (--s->match_length != 0);
1692                 s->strstart += s->match_length;
1693                 s->match_length = 0;
1760         s->prev_length = s->match_length, s->prev_match = s->match_start;
1761         s->match_length = MIN_MATCH-1;
1769             s->match_length = longest_match (s, hash_head);
1772             if (s->match_length <= 5 && (s->strategy == Z_FILTERED
1774                 || (s->match_length == MIN_MATCH &&
1782                 s->match_length = MIN_MATCH-1;
1788         if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) {
1810             s->match_length = MIN_MATCH-1;
1881         s->match_length = 0;
1893                 s->match_length = MAX_MATCH - (int)(strend - scan);
1894                 if (s->match_length > s->lookahead)
1895                     s->match_length = s->lookahead;
1901         if (s->match_length >= MIN_MATCH) {
1902             check_match(s, s->strstart, s->strstart - 1, s->match_length);
1904             _tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush);
1906             s->lookahead -= s->match_length;
1907             s->strstart += s->match_length;
1908             s->match_length = 0;
1950         s->match_length = 0;