chit.fc

#include "stdlib.fc";

() recv_internal(slice in_msg_body) impure {
    throw_if(35,in_msg_body.slice_bits() < 32);
    int n = in_msg_body~load_uint(32);

    slice ds = get_data().begin_parse();
    int total = ds~load_uint(64);

    total += n;

    set_data(begin_cell().store_uint(total, 64).end_cell());
}

;; testable
int get_total() method_id {
    slice ds = get_data().begin_parse();
    int total = ds~load_uint(64);
    return total;
}