Question

I have a very straight forward class with mostly NSString type properties. In it, I wrote a trivial implementation of the description method. I found that whenever I try to include “self” in the description, it crashes my iPhone app. An example is something such as the following:

- (NSString *)description
{
    NSString *result;

    result = [NSString stringWithFormat:@"me: %@\nsomeVar: %@", self, self.someVar];

    return result;
}

As soon as I remove the first parameter to the format string, self, it works as expected.

Answer 1

Use %p for self, then it will display the address of self. If you use %@, then it will call description on self, which will set up an infinite recursion.