Re: When do I need to override hash?
Re: When do I need to override hash?
- Subject: Re: When do I need to override hash?
- From: Kyle Sluder <email@hidden>
- Date: Thu, 20 Aug 2009 14:14:21 -0700
On Thu, Aug 20, 2009 at 2:01 PM, Clark Cox<email@hidden> wrote:
> Yes, and two different objects will have different pointer values. If
> the hash is based on the pointer values, then two different objects
> cannot have the same hash, regardless of whether or not they are
> equal. Hence, that implementation of hash is broken for any object
> that does anything other than a pointer comparison in -isEqual:.
I thought we were talking about -hash just returning zero?
--Kyle Sluder
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