Incompatible pointer to integer conversion sending 'id' to parameter of type 'int'

Question

I guess it's really simple but I can't find the way to work this out...

I have a method like this

- (int)showQuestionMethod:(int)number;

I'm creating NSMutableOrderedSet in loop like this which works fine.

while (count < numberOfQuestionsInTest) {
    randomQuestionNumber = 0 + arc4random() % (numberOfQuestions - 0);
    [_randomQuestionNumberArray addObject:[NSDecimalNumber numberWithInt:randomQuestionNumber]];
     count = [_randomQuestionNumberArray count];
}

Then when I want to call a method with this line and I get an error (Incompatible pointer to integer conversion sending 'id' to parameter of type 'int')

int showQuestion = 0;
[self showQuestionMethod:_randomQuestionNumberArray[showQuestion]];

Can anyone offer solution? Thank you!

Answer 1

Your _randomQuestionNumberArray contains NSDecimalNumber instances. But your method takes and int parameter. You need to properly convert them:

[self showQuestionMethod:[_randomQuestionNumberArray[showQuestion] intValue]];