libkern/zlib/deflate.c

1061     register Bytef *scan = s->window + s->strstart; /* current string */
1079     register ush scan_start = *(ushf*)scan;
1080     register ush scan_end   = *(ushf*)(scan+best_len-1);
1083     register Byte scan_end1  = scan[best_len-1];
1084     register Byte scan_end   = scan[best_len];
1122         /* It is not necessary to compare scan[2] and match[2] since they are
1131         Assert(scan[2] == match[2], "scan[2]?");
1132         scan++, match++;
1134         } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
1135                  *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
1136                  *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
1137                  *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
1138                  scan < strend);
1141         /* Here, scan <= window+strstart+257 */
1142         Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
1143         if (*scan == *match) scan++;
1145         len = (MAX_MATCH - 1) - (int)(strend-scan);
1146         scan = strend - (MAX_MATCH-1);
1152             *match            != *scan     ||
1153             *++match          != scan[1])      continue;
1157          * It is not necessary to compare scan[2] and match[2] since they
1161         scan += 2, match++;
1162         Assert(*scan == *match, "match[2]?");
1168         } while (*++scan == *++match && *++scan == *++match &&
1169                  *++scan == *++match && *++scan == *++match &&
1170                  *++scan == *++match && *++scan == *++match &&
1171                  *++scan == *++match && *++scan == *++match &&
1172                  scan < strend);
1174         Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
1176         len = MAX_MATCH - (int)(strend - scan);
1177         scan = strend - MAX_MATCH;
1186             scan_end = *(ushf*)(scan+best_len-1);
1188             scan_end1  = scan[best_len-1];
1189             scan_end   = scan[best_len];
1208     register Bytef *scan = s->window + s->strstart; /* current string */
1226     if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1;
1230      * It is not necessary to compare scan[2] and match[2] since they
1234     scan += 2, match += 2;
1235     Assert(*scan == *match, "match[2]?");
1241     } while (*++scan == *++match && *++scan == *++match &&
1242              *++scan == *++match && *++scan == *++match &&
1243              *++scan == *++match && *++scan == *++match &&
1244              *++scan == *++match && *++scan == *++match &&
1245              scan < strend);
1247     Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
1249     len = MAX_MATCH - (int)(strend - scan);
1720     Bytef *scan;        /* scan for end of run */
1739             scan = s->window + s->strstart - 1;
1740             prev = *scan++;
1742                 if (*scan++ != prev)