RE: [sv-ec] RE: 0001721: Ballot comment #188 order used for find and find_index

From: Bresticker, Shalom <shalom.bresticker_at_.....>
Date: Sun Jun 14 2009 - 19:25:14 PDT
How are indices ordered for an associative array when the index type is a user-defined type? The LRM says, "the relative ordering of any two entries in such an associative array can vary, even between successive runs of the same tool. However, the relative ordering shall remain the same within the same simulation run while no indices have been added or deleted." That is, there is an order, but "smallest" and "largest" are not appropriate terms, either.

As for dynamic arrays, surely a dynamic array is considered as being [0:N-1]. For example, one can take a slice from it.

> It is precisely because of associative arrays that the 
> smallest/largest index order is relevant. Left and right 
> indices are not well defined for an associative array, but 
> its indices do have a well defined ordering.

Regards,
Shalom
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Received on Sun Jun 14 19:26:54 2009

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