Cocoa Singleton conventions

Posted by MikeyWard on Stack Overflow See other posts from Stack Overflow or by MikeyWard
Published on 2010-05-25T14:38:38Z Indexed on 2010/05/25 14:41 UTC
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Cocoa is full of singletons. Is there a logical/conventional difference between when the Cocoa APIs use

NSSingletonObject *so = [NSSingletonObject defaultSingleton];

versus

NSSingletonObject *so = [NSSingletonObject sharedSingleton];

?

Not a huge thing, but I don't really see why sometimes one is used versus the other.

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