Shmuel you are correct. If you code RENT the linkage editor also sets REUS, and 
if you set REFR it does not set the others. However you can also independently 
turn on or off REUS in the linkage editor. The binder enforces that only one 
reusability attribute is set.  (Interestingly the linkage editor table of 
incompatible options has always shown REUS and RENT as incompatible.)


On Thu, 26 Aug 2021 12:37:17 +0000 Seymour J Metz <[email protected]> wrote:
> Even the linkage editor had a hierarchy: nonreusable, serially reusable and 
> reentrant. The difference is that in the binder REFR is part of the 
> hierarchy, while in the linkage edi
tor it is independent.
>
>
> --
> Shmuel (Seymour J.) Metz
> http://mason.gmu.edu/~smetz3

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