Rand chokes on UInt64

[Tamas_Papp]

Try

rand(Base.Random.GLOBAL_RNG, 0:10, 4)

Even though indexes are “logically” unsigned for plain vanilla arrays, the convention in Julia is to use Int. This prevents unpleasant surprises when doing arithmetic (eg consider subtraction which would result in a negative value, etc).

Slightly related, see the discussion there:

Fill function requiring same Int type in the tuple

I would have thought that the fill() function is smarter. Now I have to cast to the widest type before calling it… Any thoughts? Am I too picky? julia> fill(0, (Int64(10), Int32(8))) ERROR: MethodError: no method matching fill(::Int64, ::Tuple{Int64,Int32}) Closest candidates are: fill(::Any, ::Tuple{Vararg{Int64,N}} where N) at array.jl:253 fill(::Any, ::Integer...) at array.jl:254 julia> fill(0, (Int64(10), Int64(8))) 10×8 Array{Int64,2}: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0…