func alloc(size: u64) -> unit mut*:
	foreign func malloc(size: u64) -> unit mut*
	return malloc(size)

foreign func free(ptr: unit*)

let array = alloc(400ul) as i32 mut*
*array = 10
*(array + 1) = 20
let test = array[10]
array[15] = 1500
free(array as unit*)