1083     register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;  local
1087     register Bytef *strend = s->window + s->strstart + MAX_MATCH;  local
1143                  scan < strend);
1150         len = (MAX_MATCH - 1) - (int)(strend-scan);
1151         scan = strend - (MAX_MATCH-1);
1177                  scan < strend);
1181         len = MAX_MATCH - (int)(strend - scan);
1182         scan = strend - MAX_MATCH;
1217     register Bytef *strend = s->window + s->strstart + MAX_MATCH;  local
1251              scan < strend);
1255     len = MAX_MATCH - (int)(strend - scan);
1745     Bytef *scan, *strend;   /* scan goes up to strend for length of run */  local
1766                 strend = s->window + s->strstart + MAX_MATCH;
1772                          scan < strend);
1773                 s->match_length = MAX_MATCH - (int)(strend - scan);