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Re: When do I need to override hash?

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Re: When do I need to override hash?

Subject: Re: When do I need to override hash?
From: Kirk Kerekes <email@hidden>
Date: Fri, 21 Aug 2009 08:40:02 -0500

AFAIK, NSDictionary specifies that it COPIES keys, and RETAINS objects. Thus even if you were to use an NSMutableString as a key, you could not mutate the key in the NSDictionary. So the only way you are likely to get into trouble with keys is if you do troublesome things like use oddball mutable-only object types (or immutable collections with mutable content objects, or objects with mutable properties) as dictionary _keys_.

So don't do that.

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