Re: NSDictionary key types
Re: NSDictionary key types
- Subject: Re: NSDictionary key types
- From: Jon Sigman <email@hidden>
- Date: Thu, 6 Jan 2011 13:03:10 -0800 (PST)
On Jan 6, 2011, at 1:50 PM, Nick Zitzmann wrote:
> So are the following two equivalent?
>
> id myKey = [NSNumber numberWithInt:8760];
> if (myObj = [myDict objectForKey:myKey]) {
> . . . do something
> }
>
> and
>
> id myKey = @"8760";
> if (myObj = [myDict objectForKey:myKey]) {
> . . . do something
> }
>No, because a number is not a string.
----------------------------------
Is this what the documentation for "isEqual:" refers to when it says "If two
objects are equal, they must have the same hash value"? How do I determine what
an object's hash value is?
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden