Re: [sv-bc] Array assignment (copy) - overlapping source and target

In a continuous assignment, the result converges on seven copies of A[0],
but this takes 6 cycles (6x any delay on the statement).


jonathan.bromley@doulos.com wrote:
> Thinking again about the 2380 proposal... is it desirable to
> add something saying what happens when you copy an
> array on to itself?  I know that all tools currently do
> The Right Thing (tm) with this:
>
>   A[1:7] = A[0:6];
>
> but I'm not sure that the LRM anywhere specifies that
> the RHS should be fully evaluated before any writes
> to the LHS take place.  I don't want some implementation
> giving me seven copies of A[0] in A[1:7] because
> of "left-to-right copying"!
>
> thanks
> --
> Jonathan Bromley
>
>
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