Smart Pointer of String

Templates
Inheritance
Reference Counting
Smart Pointers

UCObject

UCObject holds the count
- use-counted object

UCPointer

UCPointer is a smart pointer to a UCObject
- Using a template
- Overloads -> and *

Relationship

String has a UCPointer
UCPointer has a StringRep
StringRep is a UCObject(inheritance)

Critique

UCPointer maintains reference counts
UCObject hides the details of the count String is very clean
StringRep deals only with string storage and manipulation
UCObject and UCPointer are reusable
Objects with cycles of UCPointer will never be deleted