DB_CKSUM16
sum_val = (uint32_t)DB_CKSUM16(mp);
DB_CKSUM16(mp) = (uint16_t)sum_val;
sum_val = (uint32_t)DB_CKSUM16(mp);
DB_CKSUM16(mp) = (uint16_t)sum_val;
cksum = DB_CKSUM16(mp);
cksum += DB_CKSUM16(mp);
cksum = DB_CKSUM16(mp);
cksum += DB_CKSUM16(mp);
((DB_CKSUM16(mp) != 0xFFFF &&
*value = (uint32_t)DB_CKSUM16(mp);
DB_CKSUM16(mp) = (uint16_t)value;
DB_CKSUM16(dst) = DB_CKSUM16(src);
*value = (uint32_t)DB_CKSUM16(mp);
DB_CKSUM16(mp) = 0;