Record number field size

[GCC Consulting]

I am sure that many of us use a dummy field or long variable to hold record
numbers for lookups.

rn(8,.0)

Now if there is a possibility of the record number field size being increased by
even 1 value, short of defining an edit "recno", would the following work?

Rn(len(@rn),edit(@rn))

In other words can system field edit values be used in casting dummy or long
variables?

Richard Kreiss
GCC Consulting