FUNCTION LENGTH() in PERFORM VARYING

Again with Compiler Fujitsu 3.0 I have another problem:

I wanted to calculate the length of a string (subtracting the trailing
blanks) by one of the methods presented by Chuck Stevens, but the
compiler won't let me specify a FUNCTION as argument for the FROM
clause

I have a data structure like this:

[code]
01  OUTFILE-NAME.
40  Laenge           PIC 9(4) COMP.
40  FIX              PIC X(512).
40  VAR REDEFINES FIX.
41 FILLER        PIC X
OCCURS 0 TO 512 TIMES
DEPENDING ON Laenge OF NAME

> Now, who is wrong, me or the compiler?
PERFORM does not allow an arithmetic expression in the FROM clause.

"Richard" <riplin@Azonic.co.nz> wrote in message
news:1103663938.967907.5940@c13g2000cwb.googlegroups.com... 
> PERFORM does not allow an arithmetic expression in the FROM clause.
>

Note that the restriction that a function-identifer for an integer function
could only be used in an arithmetic expression (ANSI X3.23a-1989 page A-11,
4.3.8.3.3, Function-identifier, syntax rule 4) was lifted in ISO/IEC
1989:2002, in which standard it can be used anywhere a numeric sending field
can be used.  I believe this difference, or a subset of it, was a common
implementor-defined extension anyway.

-Chuck Stevens