RE: [sv-ec] apologies and 1702

Neil, thanks for the update.

> In the Dec 10th conference call the SV-EC passed the proposal
> for 1702 with a friendly amendment.
> 
>     From: "When any form of assignment updates a queue, 
>           references to any element of the original queue
>           shall become outdated."
>       To: "When the target of an assignment is an entire 
>           queue, references to any element of the original
>           queue shall become outdated."

OK, I'll implement that and upload a new version alongside the
existing one.  I agree that the new wording is clearer.
However, it doesn't address a problem that I mentioned in an
earlier mail: what happens if I write to a slice of a queue?

  Q = {0,1,2,3,4};
  #5 Q[1:2] = {11,12};

My intuition tells me that references to elements Q[1] and Q[2] 
go stale, but the others don't.  Your new wording explicitly
avoids this possibility.  Do we want to outlaw it?  Or should
we add a new stipulation, something like

   When the target of an assignment is an element or slice of
   an existing queue, references to the element(s) that are
   so assigned shall become outdated.

Thanks
-- 
Jonathan Bromley, Consultant

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