#An attempt to show that even numbers are immutable in Elixir. The idea here is the makefun() function declares a new variable "a". Then creates a function.  Then change the value stored with a. And finally returns the function. If a was truly a variable, then when execute the returned function
#should print the changed value of a. If immutable, then the original value.
#This is not a perfect test, but it is the best I can think of.
# Author gtowell
# Created Oct 2022


#As above, this makes the function and returns a closure.
  makefun = fn() ->
    a=5
    ff = fn() -> IO.puts a end
    a=10
    ff.()
    ff
  end

  main = fn() ->
    gg = makefun.()
    gg.()
  end


main.()