> I just tested it and it worked. Is there any problems using this method ?
Of course you can cast refs or ptrs to int and store it in a seq of ints. But how do you do the bookkeeping? When you retrieve a value from your list, then its looks like an int. So how do you decide if it may be a ref to something. (Another problem is the GC, it may not keep objects alive if only ref is a casted int.) Other people already told you (in the other thread) which other possibilities you have in a static typed language like Nim. Or you can use a dynamically typed language like Python.
