Reading and Writing Pointers
Pointers can be defined in the File Section, and can be set and used as
can any other Working-Storage pointer data items. There are, however, some
restrictions:
- If a file has blocking in effect, only the first record of a block is
guaranteed to be on a 16-byte boundary. Thus pointers should not be defined
for files with blocking in effect.
- A record containing pointers can be written
to a file; however, on subsequent reading of that record, the pointer data
items and procedure-pointer data items equal NULL.
(C) Copyright IBM Corporation 1992, 2006. All Rights Reserved.