CODEWITHSUNDEEP
objective-cfor-loop
user3474825
user3474825

Reputation: 23

How to implement for loop in objective c

I am using Xcode 5 , I write this method but unfortunately this error appear: USE OF UNDECLARED IDENTIFIER otherCard. Although I declare it in the for loop:

- (void)chooseCardAtIndex:(NSUInteger)index{
    card *card =[self cardAtIndex:index];
    if(card.isMatched){
        if(card.isChosen){
            card.chosen =NO;

        }else {
            for(card *otherCard in self.cards){
                if(otherCard.isChosen && !otherCard.isMatched){
                    int matchScore =[card match:@[otherCard]];
                    if(matchScore){
                        self.score +=matchScore;
                    } else {
                        self.score -= MISMATCH_PENALTY;
                    }

                }
            }

        }
    }

}

thank you in advance

Upvotes: 0

Views: 81

Answers (2)

Hot Licks
Hot Licks

Reputation: 47709

The problem is that when you defined variable card to be of class card earlier you hid the definition of class card. (A good reason to use the standard naming convention where class names always start with an Upper Case character.)

Upvotes: 1

Dave Wood
Dave Wood

Reputation: 13323

This line may be throwing off the compiler:

card *card =[self cardAtIndex:index];

Is card the class type or the variable name? It can't be both.

Upvotes: 2

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