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IBM Enterprise COBOL for z/OS is a continuous delivery offering, and aims to satisfy the needs of a rapidly evolving market segment. Product strategy evolves and requirements are continuously evaluated against that strategy. This RFE has recently been reappraised against the wider product strategy and does not fall into IBMs delivery plans for the next 12 month. Whilst this RFE might be valid and we might look to deliver longer term, this RFE is being rejected at this time. The requirement will be kept in our internal RFE backlog and might be reassessed in the future.
I like this ! We have a similar challenge where-by even though SSR is a major benefit for avoiding storage protection issues on tables it tends to be more of a hindrance for Reference Modification. Another possibility is to simply extend the SSRANGE compiler options to allow operation on tables but not for RefMod.
This RFE is being updated, but we plan to implement it by adding a sub-option for SSRANGE to restrict it to receive it only and ref mod only (and possible tables only).
The RFE will be updated further once put into plan.
In the case of a transfer by "reference modification" the compiler should systematically test the value of the starting position and trigger an abend if it is greater than the size of the addressed area (regardless of the presence of the length in the "reference modification") for both source and target areas.
To see whether it is also necessary to test the result of the calculation (starting position + length) with respect to the effective length of the addressed zone.
Considerations should be given to "OCCURS 0 TO 1 DEPENDING ON LG" (with LG> 1) that may have been used before Cobol V5 / V6 and the availability of "OCCURS TO UNBOUNDED" (this construction avoided costly recalculation BLL registers before Cobol V5 / V6).