+-------------------------------IBM Extension--------------------------------+
VALUE Clause - Format 3 - NULL Value
(1)
>>-VALUE-------+----+--+-NULL--+-------------------------------><
'-IS-' '-NULLS-'
Notes:
This format assigns an address that is not valid to a pointer data item or a procedure-pointer data item. A value of NULL is an undefined value.
VALUE IS NULL can only be specified for elementary items described implicitly or explicitly as USAGE IS POINTER or USAGE IS PROCEDURE-POINTER.
+----------------------------End of IBM Extension----------------------------+
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