Function crcspeed64native

app/redis-6.2.6/src/crcspeed.c:253–259

Return the CRC of buf[0..len-1] with initial crc, processing eight bytes at a time using passed-in lookup table. This selects one of two routines depending on the endianess of the architecture. */

   This selects one of two routines depending on the endianess of
   the architecture. */
uint64_t crcspeed64native(uint64_t table[8][256], uint64_t crc, void *buf,
                          size_t len) {
    uint64_t n = 1;

    return *(char *)&n ? crcspeed64little(table, crc, buf, len)
                       : crcspeed64big(table, crc, buf, len);
}

uint16_t crcspeed16native(uint16_t table[8][256], uint16_t crc, void *buf,
                          size_t len) {