Format specifies type 'unsigned short' but the argument has type 'int'

objective-c, xcode

Solution

One option is to cast your arguments to unsigned short: i.e. `(unsigned short)0x0085` etc

But if you're looking for newlines, you should just use the newline character set. This is "Unicode compliant":`[ NSCharacterSet newlineCharacterSet ]`

edit

Revisiting this question: If you are trying to separate an NSString/CFString by line breaks, you should probably use `-[ NSString getLineStart:end:contentsEnd:forRange:]`.

Problem

I have a method that scans a string, converting any new lines to `<br>` for HTML. The line in question is: ``` NSCharacterSet *newLineCharacters = [NSCharacterSet characterSetWithCharactersInString: [NSString stringWithFormat:@"\n\r%C%C%C%C", 0x0085, 0x000C, 0x2028, 0x2029]]; ``` Xcode gives me a warning here: ``` Format specifies type 'unsigned short' but the argument has type 'int' ``` It's recommending that I change all `%C` to `%d`, however that turns out to break the function. What is the correct way to do this, and why is Xcode recommending the wrong thing?

Original source