The following restrictions apply to a PL/I program that is to be used as a CICS® application program.
COMPLETION
PRIORITY
STATUS
EVENT
PRIORITY
TASK
CLOSE DELAY
DELETE DISPLAY
EXIT GET
HALT LOCATE
OPEN PUT
READ REWRITE
STOP WRITE
UNLOCK
The following commands are supported :
FETCH
RELEASE
You are provided with EXEC CICS commands for the storage and retrieval of data, and for communication with terminals. (However, you can use CLOSE, PUT, and OPEN, for SYSPRINT.)
CSTG(SUBSTR(..,..,..))
This is rejected by the compiler.