[swift-evolution] Proposal: Contiguous Variables (A.K.A. Fixed Sized Array Type)

[Trent Nadeau]

The fact that this could be used in expressions is making the N x T syntax
grow on me.

(N x T) := (T, T, ...)
(N x <expr>) := (<expr>, <expr>, ...)

It has a nice symmetry.

On Fri, Jan 29, 2016 at 1:43 PM, Joe Groff via swift-evolution <
swift-evolution at swift.org> wrote:

>
> > On Jan 28, 2016, at 9:24 PM, Félix Cloutier <felixcca at yahoo.ca> wrote:
> >
> > To me, it's closely related to the declaration issue. By introducing a
> (N x Type) syntax, we're solving the LHS problem but leaving the RHS
> problem intact. If we want to spin it off into a separate proposal, I think
> that the most logical split is to have a proposal for subscripts on uniform
> tuples, and a a proposal for the shorthand syntax and a way to initialize
> values of these types.
>
> Just spitballing…we could bring the N x <expr> syntax to expressions as
> well, so that (5 x 0) is (0,0,0,0,0), and maybe (1, 3 x 0, 2) is (1, 0, 0,
> 0, 2). With integer literals it's hard to tell which side is which,
> though...
>
> -Joe
>
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-- 
Trent Nadeau
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