403     if (strm->avail_in != 0 || s->lookahead != 0 ||  in zlib_deflate()
536     s->lookahead = 0;  in lm_init()
598     if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;  in longest_match()
689     if ((uInt)best_len <= s->lookahead) return best_len;  in longest_match()
690     return s->lookahead;  in longest_match()
743         more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);  in fill_window()
746         if (more == 0 && s->strstart == 0 && s->lookahead == 0) {  in fill_window()
805         n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more);  in fill_window()
806         s->lookahead += n;  in fill_window()
809         if (s->lookahead >= MIN_MATCH) {  in fill_window()
820     } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0);  in fill_window()
871         if (s->lookahead <= 1) {  in deflate_stored()
877             if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more;  in deflate_stored()
879             if (s->lookahead == 0) break; /* flush the current block */  in deflate_stored()
883 	s->strstart += s->lookahead;  in deflate_stored()
884 	s->lookahead = 0;  in deflate_stored()
890 	    s->lookahead = (uInt)(s->strstart - max_start);  in deflate_stored()
926         if (s->lookahead < MIN_LOOKAHEAD) {  in deflate_fast()
928             if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {  in deflate_fast()
931             if (s->lookahead == 0) break; /* flush the current block */  in deflate_fast()
937         if (s->lookahead >= MIN_MATCH) {  in deflate_fast()
960             s->lookahead -= s->match_length;  in deflate_fast()
966                 s->lookahead >= MIN_MATCH) {  in deflate_fast()
992             s->lookahead--;  in deflate_fast()
1021         if (s->lookahead < MIN_LOOKAHEAD) {  in deflate_slow()
1023             if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {  in deflate_slow()
1026             if (s->lookahead == 0) break; /* flush the current block */  in deflate_slow()
1032         if (s->lookahead >= MIN_MATCH) {  in deflate_slow()
1066             uInt max_insert = s->strstart + s->lookahead - MIN_MATCH;  in deflate_slow()
1079             s->lookahead -= s->prev_length-1;  in deflate_slow()
1102             s->lookahead--;  in deflate_slow()
1110             s->lookahead--;  in deflate_slow()