NSUserDefaults and unexpected classes. Make sure #define BREAKS is 1 Then: % ./defaults-death 2013-06-11 15:50:13.811 defaults-death[48089:303] thing is WAFFLE % defaults write defaults-death spoon -string badger % ./defaults-death 2013-06-11 15:51:01.548 defaults-death[48121:303] thing is BADGER % defaults write defaults-death spoon -integer 23…

gistfile1.txt

#import <Foundation/Foundation.h>

// clang -g -Wall -framework Foundation -o defaults-death defaults-death.m

int main (void) {
    @autoreleasepool {
        NSUserDefaults *defs = [NSUserDefaults standardUserDefaults];

        NSDictionary *defaultDefaults = @{
            @"spoon" : @"waffle"
        };

        [defs registerDefaults: defaultDefaults];

        // Now do stuff

        NSString *thing = [defs objectForKey: @"spoon"];

#define BREAKS 1
#if BREAKS
        NSLog (@"thing is %@", [thing uppercaseString]);
#else
        if ([thing isKindOfClass: [NSString class]]) {
            NSLog (@"thing is %@", [thing uppercaseString]);
        } else {
            NSLog (@"bad defaults, man!");
        }
#endif
    }

    return 0;

} // main