Modifying Char array passed to function

Question

I have a function and I want to modify cardString[] that is passed to it so that cardString[] contains [charSuit, cardRank, '\0']:

void getCard(int row, int column, char cardString[]){
    PlayingCard myCard = myDeck.cardArray[row][column];
    char charSuit;
    char charRank;   

    if (myCard.getSuit() == CLUB)
        charSuit = 'C';
    else if (myCard.getSuit() == SPADE)
        charSuit = 'S';
    else if (myCard.getSuit() == HEART)
        charSuit = 'H';
    else if (myCard.getSuit() == DIAMOND)
        charSuit = 'D';
    if (myCard.getRank() == NINE)
        charRank = '9';
    else if (myCard.getRank() == TEN)
        charRank = 'T';
    else if (myCard.getRank() == JACK)
        charRank = 'J';
    else if (myCard.getRank() == QUEEN)
        charRank = 'Q';
    else if (myCard.getRank() == KING)
        charRank = 'K';
    else if (myCard.getRank() == ACE)
        charRank = 'A';
}

I want to modify the char array that is passed to the function. — mpeerman
– mpeerman, Commented Mar 6, 2012 at 1:58
The char array is originally defined as charArray[3]=['\0','\0','\0'] — mpeerman
– mpeerman, Commented Mar 6, 2012 at 1:59
@user1004358: it's really just a pointer, so you can write to it about like any other (pointer or array syntax). — Jerry Coffin
– Jerry Coffin, Commented Mar 6, 2012 at 1:59
cardString is an array of characters...what do you want to store in it? — prelic
– prelic, Commented Mar 6, 2012 at 2:01

ruakh · Accepted Answer · 2012-03-06 02:02:06Z

2

There's no one-line way to assign an entire array; you need to write three assignment statements:

cardString[0] = charSuit;
cardString[1] = charRank;
cardString[2] = '\0';

answered Mar 6, 2012 at 2:02

ruakh

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2 Comments

mpeerman Over a year ago

but my function is a void function i want to change cardString in memory.

ruakh Over a year ago

@user1004358: Yes, exactly. That's what the above statements will do. (Are you seeing some sort of problem?)

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