On Feb 22, 2014, at 9:33 AM, [email protected] wrote:

> On 22 Feb 2014, at 14:27, Jonathan Hull <[email protected]> wrote:
> 
>> I think the main objection everyone has is that they believe (as did I) that 
>> -getValue: is actually returning the internal representation of the object.
> 
> That is a very pertinent point that we haven’t mentioned.
> -getValue: populates a pointer to a type matching -objCType.

But there's no guarantee about what that type is.  There's no guarantee that 
it's a scalar rather than a structure, say.  There's no guarantee that a given 
class always uses the same type, even for the same logical value.

> Hence NSDecimal -getValue: populates a pointer to a double.

Not necessarily.  That's my point.

Regards,
Ken


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