example2.jl

using CLArrays
# `where T` is Julias way of declaring a free type parameter
function replace_with(input::AbstractArray{T}, name, with) where T
    fsname, fswith = T(name), T(with) # convert args to element type
    # creates an unitiliazed array similar to input
    output = similar(input)
    # now replace elements on the gpu
    map!(n-> n == fsname ? fswith : n, output, input)
    output
end
# Inheritance: CLArray <: GPUArray <: AbstractArray
test = CLArray([1, 2, 3, 4, 5])
julia> replace_with(test, 2, 42)
GPU: 5-element Array{Int64,1}:
  1
 42
  3
  4
  5