CODEWITHSUNDEEP
blockchainfunccryptocurrencyton
staffchik2596
staffchik2596

Reputation: 1

Unable to send internal message with UTF-8 comment in FunC (TVM exit code 9)

I have wrote simple contract that raffles TONs between participants (wallets that deposited into it).

However, I faced such issue, that while sending internal message from my contract to the winner with text comment, I always get TVM exit code 9 (cell underflow). Here is part of my code that fails:

() reward_winner(slice winner_address) impure inline {

    var [balance, _] = get_balance();

    throw_unless(444, balance > const::min_balance + const::owner_fee);

    int withdraw_amount = min(const::winner_reward, balance - const::min_balance - const::owner_fee);

    slice winner_congrats = "Congrats to the winner! You have won the raffle!";
    cell message_body = begin_cell().store_int(0, 32).store_slice(winner_congrats).end_cell();
    int mode = 0;
    var msg = begin_cell()
            .store_uint(0x18, 6)
            .store_slice(winner_address)
            .store_coins(withdraw_amount)
            .store_uint(0, 1 + 4 + 4 + 64 + 32 + 1 + 1)
            .store_slice(message_body.begin_parse());

    send_raw_message(msg.end_cell(), mode);
}

However,if I replace message_body.begin_parse() with just slice winner_congrats, like in code fragment below, everithing works good (except of that text comment is invisible in explorers and wallets):

slice winner_congrats = "Congrats to the winner! You have won the raffle!";
;; cell message_body = begin_cell().store_int(0, 32).store_slice(winner_congrats).end_cell();
int mode = 0;
var msg = begin_cell()
            .store_uint(0x18, 6)
            .store_slice(winner_address)
            .store_coins(withdraw_amount)
            .store_uint(0, 1 + 4 + 4 + 64 + 32 + 1 + 1)
            .store_slice(winner_congrats);

send_raw_message(msg.end_cell(), mode);

I am beginner, so maybe I just do not understand something. I need help

Upvotes: 0

Views: 120

Answers (0)

Related Questions