Hi Jim,
On Thu, Nov 20, 2008 at 4:02 PM, Jim Correia <[EMAIL PROTECTED]> wrote:
> The header documentation for NSPointerArray says:
>
>> Fast enumeration, copying, and archiving protocols are applicable only
>> when NSPointerArray is configured for Object uses. Since the array may
>> contain NULLs, fast enumeration (for..in) will yield NULLs. As a
>> convenience, fast enumeration will also enumerate other types of pointers.
>> Copying and coding are undefined for non-object uses.
>
> That seems self contradictory with respect to fast enumeration. It is only
> applicable when NSPointerArray is configured for Objects, but as a
> convenience, it will enumerate non-object types anyway even though it is
> inappropriate to do so?
>
> Can anyone offer clarification?
Oops! Please file a bug about this. Yes, it's self-contradictory.
No, you shouldn't try to use fast enumeration with non-objects. Even
if it fails to crash now, that might not hold in the future.
Thanks,
Ken
Cocoa Frameworks
> When I try to be honest about the enumeration, i.e.
>
> for (void *pointer in pointerArray) {
>
> }
>
> the compiler complains with
>
> pointer-array.m:20: error: selector element does not have a valid
> object type
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