RosettaCodeData/Task/Null-object/BBC-BASIC/null-object.basic

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PROCtestobjects
END
DEF PROCtestobjects
PRIVATE a(), b(), s{}, t{}
DIM a(123)
DIM s{a%, b#, c$}
IF !^a() <= 1 PRINT "a() is null" ELSE PRINT "a() is not null"
IF !^b() <= 1 PRINT "b() is null" ELSE PRINT "b() is not null"
IF !^s{} <= 1 PRINT "s{} is null" ELSE PRINT "s{} is not null"
IF !^t{} <= 1 PRINT "t{} is null" ELSE PRINT "t{} is not null"
ENDPROC