Re: [sv-bc] applying '{default:} struct assignment pattern on array of structs

On 24/01/2011 17:33, Greg Jaxon wrote:
> Does it make sense for |default: '{...}| to distribute the nested
> assignment pattern to each top level field or
> N-1 dimensional subarray of the LHS's data type? That rule would match
> Jonathon's intuition here, but would require
> a default clause for each dimension:
>
> |*module* test;|
> |*struct* { int a; int b; } str[2:0][4];|
> |*assign* str = '{*default*:'{*default*:'{a:1, b:2}}};|
> |*endmodule*|
>

With respect, not my intuition but my suspicions about others'
intuitions. I have learnt from repeated experience that it doesn't pay
to guess about the behaviour of assignment patterns, and try not to
trust my intuition.

It's so easy to get around this by typedef-ing the element type that I
can't get too steamed up about it, but I have on several occasions
observed that it would be quite handy to have a version of "default:"
that is applicable only to the outermost dimension of unpacked array
targets. Something like "default[]:" or "[*]:" maybe.

Plenty other more important things to worry about for now, though.

Jonathan Bromley

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