map() loses the type of empty arrays

[Parsifal Herzog]

This is an an application of an identity function:

julia> map(z::Int->z, Array(Int,1))
1-element Array{Int64,1}:
 36746368

So it is. This is also:

julia> map(z::Int->z, Array(Int,0))
0-element Array{Any,1}

This result seems incorrect. Is this the intended result?

[Kevin Squire]

Are you referring to the fact that the return type is Array{Any,1}, instead of Array{Int64,1}?  This is actually intentional: https://github.com/JuliaLang/julia/issues/3349

That said, inference in the map function could generally be improved.  See

https://github.com/JuliaLang/julia/issues/4466

https://github.com/JuliaLang/julia/issues/210

Cheers,

   Kevin