Ref: Your note of Tue, 28 May 2019 17:41:33 +0000
It's only valid in a conditional assembly statement, but that
can be in open code, and it can be used with a fixed symbol:
AIF (O'AGH EQ 'O').ZS8
Shmuel (Seymour J.) Metz writes:
> > O' in front of a entity is valid.
>
> Some uses are valid, but not that one. The O attribute has to be used inside
> of a macro, and even then it can only be used with a SETC symbol or
> parameter. A name that does not begin with an ampersand is neither.
Jonathan Scott, HLASM
IBM Hursley, UK