return (unsigned)(ip - iStart);
}
+/* LZ4HC_reverseCountPattern() :
+ * pattern must be a sample of repetitive pattern of length 1, 2 or 4 (but not 3!)
+ * read using natural platform endianess */
static unsigned LZ4HC_reverseCountPattern(const BYTE* ip, const BYTE* const iLow, U32 pattern)
{
const BYTE* const iStart = ip;
- while (likely(ip>=iLow+4)) {
+ while (likely(ip >= iLow+4)) {
if (LZ4_read32(ip-4) != pattern) break;
ip -= 4;
}
while (likely(ip>iLow)) {
- if (ip[-1] != (BYTE)pattern) break;
- ip--;
+ const BYTE* bytePtr = (const BYTE*)(&pattern) + 3; /* works for any endianess */
+ if (ip[-1] != *bytePtr) break;
+ ip--; bytePtr--;
}
return (unsigned)(iStart - ip);