RE: Can an RPG module call another RPG module?

[Rich Duzenbury <rduz@xxxxxxxxxxxxxxxxxxx>]

> where I'm using recursion though, it would have been nearly impossible to
> duplicate the process without it.
Recursion removal is quite common.  For example, here is a bit of C code to
traverse a binary tree (using recursion)

traverse( struct node *t)  {
    if (t != z)  {
        visit(t);
        traverse(t->left);
        traverse(t->right);
    }
}

By replacing the recursion code with a stack, the following non-recursive
implementation can be made:
traverse(struct node *t) {
        push(t);
        while (!stackempty()) {
            t = pop();
            visit(t);
           if (t->right != z) push(t->right);
           if (t->left != z) push(t->left);
        }
}

If you are interested in reading all the gory details, this bit is from
'Algorithms in C' by Robert Sedgewick.  I use code similar to the above to
traverse nodes in an XML document.