[julia-users] abs() returning negative numbers??

[Corey Moncure]

Can someone help me understand what's going on here?
Maybe I've been sitting at my desk too long?

julia> arr = hex2bytes("14fb9c03")
4-element Array{Uint8,1}:
 0x14
 0xfb
 0x9c
 0x03

julia> f(x) = abs((x % 3) - 3)
f (generic function with 1 method)

julia> function test_abs(bytes_input::Array{Uint8})
       input_len::Uint = sizeof(bytes_input)
       a::Int = f(input_len)
       println("a: ", a, " input len: ", input_len)
       end
test_abs (generic function with 1 method)

julia> test_abs(arr)
a: -2 input len: 4                  <-- minus 2????

julia> sizeof(arr)
4

julia> f(4)
2                                   <-- expected