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Re: Storing values in dictionary with their address as the key
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Re: Storing values in dictionary with their address as the key


  • Subject: Re: Storing values in dictionary with their address as the key
  • From: "David Wilson" <email@hidden>
  • Date: Mon, 28 Jul 2008 15:24:50 -0400

On Mon, Jul 28, 2008 at 2:13 PM, Carter R. Harrison
<email@hidden> wrote:
> Hey Everybody,
>
> If I wanted to store an object in a dictionary and set its key as the
> object's memory address - how would I go about doing this?
>
> Right now I'm doing this:
>
> int i;
> for (i = 0 ; i  < 10 ; i++)
> {
> NSObject *myObject = [[NSObject alloc] init];
> [dictionary setValue:myObject forKey:[NSString stringWithFormat:@"%x",
> &myObject]];
> }
>

Use:

int i;
for (i=0;i<10;i++)
{
NSObject *myObject = [[NSObject alloc] init];
NSValue *val = [NSValue valueWithPointer:myObject];
[dictionary setValue:myObject forKey:val];
}

Or [NSNumber numberWithInt:(int)myObject] instead of the NSValue.

--
- David T. Wilson
email@hidden
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