gistfile1.m

#import "NSObject+Log.h"
#import <objc/runtime.h>

@implementation NSObject (Log)

- (void)log:(id)logObject
{
    unsigned int numberOfProperties = 0;
    objc_property_t *propertyArray = class_copyPropertyList([logObject class], &numberOfProperties);
    NSLog(@"Property List for: %@", NSStringFromClass([self class]));
    for (int i = 0; i < numberOfProperties; i++) {
        objc_property_t property = propertyArray[i];
        NSString *name = [[NSString alloc] initWithUTF8String:property_getName(property)];
        id value = [self valueForKey:name];
        NSLog(@"%@: %@", name, value);
    }
    free(propertyArray);
}

@end