IBM Extension

Format 4

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This format describes Boolean data. Boolean data items are items that are limited to a value of 1 or 0.
Note: When you use indicators in a COBOL program, you must describe them as Boolean data items using the data description entry for Boolean data.

Data Description Entry - Format 4 - Boolean Data

Read syntax diagramSkip visual syntax diagramlevel-numberdata-name-1FILLER1REDEFINESdata-name-2LIKEdata-name-3ISTYPEDEFISEXTERNALISGLOBAL2JUSTJUSTIFIEDRIGHTOCCURS clause - Format 1OCCURS clause - Format 2INDICATORINDICATORSINDICinteger-3PICTUREPICIS1VALUEISboolean-literal2SYNCHRONIZEDSYNCLEFTRIGHTTYPEtype-name-1USAGEISDISPLAY.
OCCURS clause - Format 1
Read syntax diagramSkip visual syntax diagramOCCURSinteger-2TIMESINDEXEDBYindex-name-1
OCCURS clause - Format 2
Read syntax diagramSkip visual syntax diagramOCCURSinteger-1TOinteger-2TIMESDEPENDINGONdata-name-4INDEXEDBYindex-name-1
Notes:
  • 1 Cannot be used with the TYPEDEF clause.
  • 2 Syntax-checked only

The special considerations for the clauses used with the Boolean data follow. All other rules for clauses are the same as those for other data.

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