Syntax

── ? ─┬──────────────┬─ OF ────────────────────────────────────────────%
      └─<mix number>─┘

Explanation

The ?OF command can be used in response to a “#NO FILE” message where the file being sought has the attribute OPTIONAL set to TRUE. End-of-file action results from entering this command. If a <mix number> is not specified, the currently running program is assumed.

Example

LIST
100 BEGIN
200 FILE F(KIND=DISK,OPTIONAL=TRUE);
300 F.OPEN:=TRUE;
400 END.
#

RUN
#RUNNING 1840
#1840 NO FILE(F) ON PACK(USERFILES)

?OF
#1840 GOING
#ET=7.2 PT=0.3 IO=0.4