Multiple assignments using broadcasting - any hacks?

General Usage
1

I would like to do something similar to the following:

f(x) = x+1, x+2

a = Vector{Int}(undef, 10)
b = similar(a)
a, b .= f.(1:10)

which of course does not work. For context, I have a trivially parallel operation to perform that I want to at least test as a GPU kernel; each operation produces several resulting values and it would be most natural to store each in its own array. So a, b, and 1:10 would all be CuArrays. I could of course write results to an array-of-structs if there’s not a more elegant solution.

Can anyone think of an elegant away to implement this kind of “destructuring” of a broadcast result that will be performant with CuArrays? And please correct me if this is a misconception, but I believe it will not be efficient to just write a for loop when working with CuArrays, unless I want to get low-level and write code using CUDANative myself.

2

It does kind of work, even a,b = f.(1:10), but only gives the first two tuples
There might be a way to nest a function that switches the output format

a = f.(1:10);
b= map(x->x[1], a); c= map(x->x[2], a);

Added: maybe like

g(x,y) = x[y];
function xgroup(n)
  a = f.(1:10);
  return g.(a,1), g.(a,2);
  end;
3