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Implementing isEqual: and hash

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Implementing isEqual: and hash

Subject: Implementing isEqual: and hash
From: Graham Cox <email@hidden>
Date: Sat, 23 Aug 2008 21:41:43 +1000

I have a class for which equality can be defined as having the same internal string value (which happens to be a UUID-turned-string). I can easily implement isEqual: based on that but the docs say I also need to implement -hash. Any pointers on what is a good way to do that? Could I just safely defer to the -hash returned by the string in question?

tia,

Graham


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