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Restrition on the use of subscripted data-name's

 
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tposival

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Joined: 07 May 2008
Posts: 1
Location: usa

PostPosted: Tue Sep 16, 2008 8:24 pm    Post subject: Restrition on the use of subscripted data-name's
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Does anyone have a list of COBOL statements that do not allow the use of a data-name reference by a subscript. I want to create a recommendation on how, and where to use subscripted data-names.

Example: valid usage

SELECT OPTIONAL "file-name-1" ASSIGN "assignment-name-1" TO LINE SEQUENTIAL ORGANIZATION IS ACCESS SEQUENTIAL MODE IS " STATUS FILE IS "data-name-1".

Where as the data-name-1 is table-element (table-subscript-1). This look dangerous to code a statement like this, because the subscript must have a valid value before this file can be open or it will generated an run time error.
Does anyone know if the compiler will allow this statement? icon_eek.gif
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dick scherrer

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Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Wed Sep 17, 2008 12:03 am    Post subject:
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Hello tposival and welcome to the forums,

Quote:
Does anyone know if the compiler will allow this statement?
Have you tried this? If not, do so and post anything that happens that is not clear.

Quote:
Does anyone have a list of COBOL statements that do not allow the use of a data-name reference by a subscript.
The Language Reference for your compiler is the best source for this kind of info.

Quote:
I want to create a recommendation on how, and where to use subscripted data-names.
Possibly there is something i misunderstand, but i do not understand how such a recommendation would be created. Anything that occurs multiple times must be so referenced, regardless of any recommendation icon_confused.gif As i mentioned, there may be something i misunderstand.
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