binutils/zlib/deflate.c

1153     register Bytef *scan = s->window + s->strstart; /* current string */
1171     register ush scan_start = *(ushf*)scan;
1172     register ush scan_end   = *(ushf*)(scan+best_len-1);
1175     register Byte scan_end1  = scan[best_len-1];
1176     register Byte scan_end   = scan[best_len];
1214         /* It is not necessary to compare scan[2] and match[2] since they are
1223         Assert(scan[2] == match[2], "scan[2]?");
1224         scan++, match++;
1226         } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
1227                  *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
1228                  *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
1229                  *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
1230                  scan < strend);
1233         /* Here, scan <= window+strstart+257 */
1234         Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
1235         if (*scan == *match) scan++;
1237         len = (MAX_MATCH - 1) - (int)(strend-scan);
1238         scan = strend - (MAX_MATCH-1);
1244             *match            != *scan     ||
1245             *++match          != scan[1])      continue;
1249          * It is not necessary to compare scan[2] and match[2] since they
1253         scan += 2, match++;
1254         Assert(*scan == *match, "match[2]?");
1260         } while (*++scan == *++match && *++scan == *++match &&
1261                  *++scan == *++match && *++scan == *++match &&
1262                  *++scan == *++match && *++scan == *++match &&
1263                  *++scan == *++match && *++scan == *++match &&
1264                  scan < strend);
1266         Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
1268         len = MAX_MATCH - (int)(strend - scan);
1269         scan = strend - MAX_MATCH;
1278             scan_end = *(ushf*)(scan+best_len-1);
1280             scan_end1  = scan[best_len-1];
1281             scan_end   = scan[best_len];
1301     register Bytef *scan = s->window + s->strstart; /* current string */
1319     if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1;
1323      * It is not necessary to compare scan[2] and match[2] since they
1327     scan += 2, match += 2;
1328     Assert(*scan == *match, "match[2]?");
1334     } while (*++scan == *++match && *++scan == *++match &&
1335              *++scan == *++match && *++scan == *++match &&
1336              *++scan == *++match && *++scan == *++match &&
1337              *++scan == *++match && *++scan == *++match &&
1338              scan < strend);
1340     Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
1342     len = MAX_MATCH - (int)(strend - scan);
1867     Bytef *scan, *strend;   /* scan goes up to strend for length of run */
1885             scan = s->window + s->strstart - 1;
1886             prev = *scan;
1887             if (prev == *++scan && prev == *++scan && prev == *++scan) {
1890                 } while (prev == *++scan && prev == *++scan &&
1891                          prev == *++scan && prev == *++scan &&
1892                          prev == *++scan && prev == *++scan &&
1893                          prev == *++scan && prev == *++scan &&
1894                          scan < strend);
1895                 s->match_length = MAX_MATCH - (int)(strend - scan);
1899             Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan");