how to pass the name of a variable as argument?

On Thu, May 1, 2008 at 8:14 PM, Oliver Kullmann
<O.Kullmann at swansea.ac.uk> wrote:
>  Since global variables should be avoided, a good
>  solution would be to pass the name of a variable
>  to f, so that then we could use

I am not sure that global variables are any worse than this method, but....

To name a variable, use 'var.  To assign to a variable through its
name, use var :: newval. To access the value of the value of a
variable, use ev(var).  So your example becomes

    f(x) := x :: adjoin(1,ev(x));

and is called as

    f('var)

I don't know what your overall problem is, but I think I would just
use global variables with a naming convention, e.g. global_x,
global_y, or a hasharray global['x], global['y].

            -s