Embarassing newbie question

[Christian Fricke]

Albert Wagner wrote:
> 
> Sorry, did c++ too long ago. Don't understand notation conventions.
> What does the "&" mean in the first and second instance below?
> What about the "p"?
> 
> QPoint& operator+= ( const QPoint & p )
> 
> Is this notation convention described anywhere in KDevelop documentation
> or do I need a new c++ book? What are your favorites?

You should reading texts about objectoriented 
software developing so you'll understand it.