Function eosio_cdt_sys::db_idx256_update

pub unsafe extern "C" fn db_idx256_update(
    iterator: i32, 
    payer: capi_name, 
    data: *const uint128_t, 
    data_len: u32
)

Update an association for a 256-bit secondary key to a primary key in a secondary 256-bit index table

@brief Update an association for a 256-bit secondary key to a primary key in a secondary 256-bit index table @param iterator - The iterator to the table row containing the secondary key association to update @param payer - The account that pays for the storage costs (use 0 to continue using current payer) @param data - Pointer to the new secondary key data (which is stored as an array of 2 uint128_t integers) that will replace the existing one of the association @param data_len - Must be set to 2 @pre iterator points to an existing table row in the table @post the secondary key of the table row pointed to by iterator is replaced by the specified secondary key