[Newbies] Re: How to empty a collection?

[nicolas cellier]

cdrick a écrit :
> 
> or again
> removeAll: aCollection
> 	aCollection == self
>                 ifTrue: [self removeAll: aCollection copy]
>                 ifFalse: [aCollection do: [:each | self remove: each]].
> 
> Or maybe, if aCollection == self, a warning could be raised ?
> 
> What do you think ?
> 
> Cédrick
> 

aCollection == self is not the only case that can fail.
Imagine i pass a wrapper collection on self, like a MappedCollection.

When i will change self with remove:, i will also change the argument 
which is just a wrapper on self.

Hope my explanations are not too much confusing...

Nicolas