Objective-C NSString for loop with characterAtIndex

Question

I\'m trying to loop through a NSString, character by character, but I\'m getting a EXC_BAD_ACCESS error. Do you have an idea how to do this right? I\'ve been googling for hours

Answer 1

characterAtIndex: returns a unichar, so you should use NSLog(@"%C", ...) instead of @"%@".

You also cannot use isEqualToString for a unichar, just use == '.' is fine.

If you want to find the position of all '.'s, you can use rangeOfString. Refer to:

• String Programming Guide: Searching, Comparing, and Sorting Strings
• Position of a character in a NSString or NSMutableString