Dispatch issue

[ranjanan]

Julia dispatch issue: Let’s say we have AFArray <: AbstractArray{T,4}

now there are methods that are dispatched across AFArray and AFAbstractArray

f1 = sum{T,N}(a::AbstractArray{T<:Any, T<:Any})
f2 = sum{T}(a::AFArray{T})

now suppose a is an AFArray, and I call sum(a), Julia should call f2, but doesn't.

[ranjanan]

@vtjnash suggests defining f2 as sum{T}(a::AbstractArray{T,4}) to get it to work. Have to experiment with it.