Re: iPhoto returns a real number as a photo id
Re: iPhoto returns a real number as a photo id
- Subject: Re: iPhoto returns a real number as a photo id
- From: Shane Stanley <email@hidden>
- Date: Tue, 15 Jun 2010 08:31:39 +1000
- Thread-topic: iPhoto returns a real number as a photo id
On 15/6/10 5:25 AM, "Rob Lewis" <email@hidden> wrote:
>> Let me ask, what can't you do with them that you could if they were integers?
>>
> Well, let's see: apart from the fact that it's damn strange to use a real
> number as an id number (or is it just me? In a long career, I can't recall
> ever seeing another instance of this), integers are much easier to read IMO,
> and more convenient to place in sorted lists.
>
> "every photo whose id is 4.943105932E+9" is just frickin' bizarre.
>
None of which really answers my question: what can't you do with them that
you could if they were integers?
> And there's an "insecurity factor" because everyone knows that floating point
> numbers are very often not exact representations.
>
Given the range they seem to be using, that's no problem here.
> Be honest now: if you were designing this, would you choose real as the type
> for your id numbers?
>
I don't think it's ideal, but I suspect the scripting ids reflect some
internal ids. Less than ideal is a far from novel concept in scripting
implementations, sadly.
--
Shane Stanley <email@hidden>
_______________________________________________
Do not post admin requests to the list. They will be ignored.
AppleScript-Users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
Archives: http://lists.apple.com/archives/applescript-users
This email sent to email@hidden