1412                  const BYTE* const lowPrefix,  /* always <= dst, == dst when no prefix */  in LZ4_decompress_generic()  argument
1438     assert(lowPrefix <= op);  in LZ4_decompress_generic()
1480               && (dict==withPrefix64k || match >= lowPrefix) ) {  in LZ4_decompress_generic()
1541 …if ((checkOffset) && (unlikely(match + dictSize < lowPrefix))) goto _output_error;   /* Error : of…  in LZ4_decompress_generic()
1560         if ((dict==usingExtDict) && (match < lowPrefix)) {  in LZ4_decompress_generic()
1566             if (length <= (size_t)(lowPrefix-match)) {  in LZ4_decompress_generic()
1568                 memmove(op, dictEnd - (lowPrefix-match), length);  in LZ4_decompress_generic()
1572                 size_t const copySize = (size_t)(lowPrefix - match);  in LZ4_decompress_generic()
1576                 if (restSize > (size_t)(op - lowPrefix)) {  /* overlap copy */  in LZ4_decompress_generic()
1578                     const BYTE* copyFrom = lowPrefix;  in LZ4_decompress_generic()
1581                     memcpy(op, lowPrefix, restSize);  in LZ4_decompress_generic()