For loops with the syntax for i in iter

[gbaraldi]

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For loops with the syntax for i in iter dont work even with a simple iterator like a Vector. MWE

using LoopVectorization

test = rand(10000)
function mymean(func,iter)
    len = length(iter)
    total = zero(eltype(iter))
    @avx for i in iter
        total += func(i)
    end
    total/len
end

mymean(identity,test)

This gives this error:

ERROR: LoadError: MethodError: no method matching canonicalize_range(::Vector{Float64})

[chriselrod]

I'll probably hold off on this until the triangular loops update, which is probably at least several months away. But if anyone else would like to take a stab at it, I'd be happy to explain how to do it and answer any questions.

The approach would basically be to notice that the type of iter isn't a range, and replace it with eachindex(iter), and then substitute uses of i with iter[i].