Question

EDIT: Revision of question, narrowed the scope

I need to use a switch statement to direct outcomes based on the int value of an NSNumber. My method looks like this:

-(BOOL)setImage:(NSNumber*)c{
       switch ([c intValue]){...}
}

I get a “EXC_BAD_ACCESS” error on the switch when I run it

I have also tried switch([c integerValue]) but that doesn’t work either

If I place a static int in the switch statement, the program runs fine.

What’s wrong and how can I get the int value of my NSNumber?

Answer 1

If [c intValue] crashes then c isn’t an object pointer. If it returns an unexpected value, it’s probably nil. It is a good idea to check for that, and either return NO for nil numbers or choose some default value.