Comparing an NSDate to [NSDate date]
问题 I am trying to force a user to select a date in the future with a date picker. I obviously used the compare: method, however, when I do the following code, even if it's the same date as [NSDate date], it tells the executes the if statement. Here is my code: if ([datePicker.date compare:[NSDate date]] == NSOrderedAscending) // If the picked date is earlier than today { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Hmm, this date is earlier than today" message:@"The date you've