Why can't NSDate be compared using < or>?

Question

NSDate *date = [NSDate date];
NSDateFormatter *dateFormat = [[NSDateFormatter alloc]init];
[dateFormat setDateFormat:@\"MM/dd/yyyy\"];
NSLog([@\"today is \" stringBy         


        

Answer 1

    if ([date compare:firstBirthdayDate] == NSOrderedAscending){
         NSLog(@"First date is earlier than today");
    }
   else{
        NSLog(@"First date is later than today");
   }
   if ([date compare:secondBirthdayDate] == NSOrderedAscending){
         NSLog(@"Second date is earlier than today");
   }

   if ([firstBirthdayDate compare: secondBirthdayDate] == NSOrderedSame) 
        NSLog(@"First date is the same as second date");