Sharing data in recursive programs
If your program has the RECURSIVE
attribute, data that is defined in the
LINKAGE SECTION
is not accessible on subsequent invocations of the program.
About this task
To address a record in the LINKAGE SECTION
, use
either of these techniques:
- Pass an argument to the program
and specify the record in an
appropriate position in the
USING
phrase in the program. - Use the format-5
SET
statement.
If your program has the RECURSIVE
attribute, the address of the record is valid for a
particular instance of the program invocation. The address of the record in another execution
instance of the same program must be reestablished for that execution instance. Unpredictable
results will occur if you refer to a data item for which the address has not been established.