Anyone have any tricks for comparing SELECT lists?

[prairiepickster]

Hello,

To provide context: I am still plugging along on an old R83 compatible environment (for a few more months...).

I was wondering if anyone had any tricks to compare SELECT lists (saved via SAVE-LIST) to find either:

- differences
- common elements

and generate a third list .

Years ago I wrote my own 'differencer' in MVBasic. Maybe I've been missing neat tricks for...a while now.

[Bruce Ackman]

Do you have FL in your DM account?

Post by prairiepickster
Hello,
To provide context: I am still plugging along on an old R83 compatible environment (for a few more months...).
- differences
- common elements
and generate a third list .
Years ago I wrote my own 'differencer' in MVBasic. Maybe I've been missing neat tricks for...a while now.

[prairiepickster]

Sorry, no FL .. assume a very obsolecent R83 type system... Ultimate+ flavour.

Post by Bruce Ackman
Do you have FL in your DM account?

Post by prairiepickster
Hello,
To provide context: I am still plugging along on an old R83 compatible environment (for a few more months...).
- differences
- common elements
and generate a third list .
Years ago I wrote my own 'differencer' in MVBasic. Maybe I've been missing neat tricks for...a while now.

[Rob Allen]

Can you just read the POINTER-FILE items in a Basic program and manipulate them like any array?