Re: Scrub last - better patch....

[Richard Frith-Macdonald]

On Wednesday, September 10, 2003, at 12:34 PM, Pete French wrote:

> > The one in NSString.m is used whenever anyone implements their own
> > subclass of NSString.
>
> O.K., so I can test that by making an empty subclass of NSString then ?

Unfortunately not quite that simple ... NSString is the semi-abstract 
interface of a class cluster ... it doesn't actually have any ivars to 
store data in ... so to subclass it, you need to add some ivars and 
implement a few primitive methods (-length and -characterAtIndex: and 
-initWithCharacters:length:freeWhenDone:)
All the other methods should already be implemented in NSString.m in 
terms of those primitives.