My two cents about multidimensional array literals.
I cannot invent anything brilliant.
For general high-dimensional arrays, I cannot
think of a solution more elegant than what Chapel
already has. Chapel already has a reshape
operation, allowing:
var A = reshape([ 1.1, 1.2, 1.3, 2.1, 2.2, 2.3, 3.1, 3.2, 3.3 ],
{1..3,1..3});
It will be a simple matter for a compiler to
optimize away redundant array creation here. Any
proposed literal must be more elegant than this,
but I cannot think of any.
numpy is also designed along this line. Arrays
have reshape method which does exactly what
Chapel's reshape function does.
For 2D arrays, we may use something along Matlab.
i.e., something like:
[ 1.1, 1.2, 1.3; 2.1, 2.2, 2.3; 3.1, 3.2, 3.3 ]
but arguably, this is redundant and unnecessary.
To summarize, I am proposing not to propose any,
but I am happy to be enlightened otherwise.
>
> Chapel Developers --
>
> While we're talking about array literals, we need a syntax for
> multidimensional array literals. That is, how should I write the
> conceptual 3x3 array of reals:
>
> 1.1 1.2 1.3
> 2.1 2.2 2.3
> 3.1 3.2 3.3
>
> as Chapel source code?
>
> Note that the following:
>
> [[1.1, 1.2, 1.3], [2.1, 2.2, 2.3], [3.1, 3.2, 3.3]]
>
> is probably not the right solution as it more logically reads as an array
> of arrays. I.e., '[1..3] [1..3] real' rather than '[1..3, 1..3] real'
>
> Proposed solutions need to scale to arbitrary dimensions.
>
> Thanks!
> -Brad
>
>
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