I need help changing the integer value of ace in blackjack if the total sum is going to be higher then 21, C

Question

In my blackjack game the integer value of ace is fixed to 11 but in those cases when one player gets an ace but the total value of the cards in her hand is going to be higher then 21 I want the integer value of ace to be 1.

void deal(const Card * const Deck, int value, int size, int size_1, int size_2){

int i, j, length;
char anotherCard[2];
char name1[30];
char name2[30];
int valueName1 = 0, valueName2 = 0, valueDealer = 0;

printf("Name player one > ");
scanf("%s", name1);
printf("Name player two > ");
scanf("%s", name2);

printf("\nWelcome %s and %s, lets begin!\n\n", name1, name2);
getchar();

while (valueName1 < 21 || valueName2 < 21 || valueDealer < 17){
    printf("%s's card:\n", name1);
    for (i = 0; i < size; i++){
        printf("%5s of %-8s%c", Deck[i].decks, Deck[i].suits, (i + 1) % 2 ? '\t' : '\n');


    if (valueName1 > 21 && Deck[i].value == 11){
        Deck[i].value = 1;                          //error on this line
        valueName1 += Deck[i].value;
        printf("value > %d\n", valueName1);
        }
    else{
        printf("value > %d\n", valueName1);
        }
    }


int main(void){

Card allCards[52];
Card cardValue[52];
char *suitname[] = { "spades", "hearts", "diamonds", "clubs" };
char *deckname[] = { "ace", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "jack", "queen", "king" };
int cardvalue[] = { 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10 };



void fillDeck(Card * const Deck, const char *suit[], const char *deck[], const int value[]){

int s;

for (s = 0; s < 52; s++){
    Deck[s].suits = deck[s % 13];
    Deck[s].decks = suit[s / 13];
    Deck[s].value = value[s % 13];
}

return;
}

my struct:

typedef struct card{
    const char *suits;
    const char *decks;
    int value;
};

error message: error C2166: l-value specifies const object

Answer 1

You declare Deck as

const Card * const Deck

That means Deck is a constant pointer to constant data, i.e. you can't change the pointer and (more importantly) you can't change the data it points to. You need to drop the first const to make it work

Card * const Deck