| Introduction to Conversion Series 5 | Reformatting a DG COBOL Source File | |
All of the DG Interactive COBOL syntax as defined in revision 02, dated August 1984, of The Data General Interactive COBOL Programmer's Reference Manual is supported by your COBOL system, with the exception of:
UNDELETE RECORD
Support is not guaranteed for any of the syntax of the DG Interactive COBOL language that is not documented in the above revision of The Data General Interactive COBOL Programmer's Reference Manual.
If your DG Interactive COBOL programs perform any screen-handling operations you must run the adiscf facility and select the DG screen-handling configuration option before you run them. See your Programmer's Guide to Creating User Interfaces for full details of this utility.
Your DG Interactive COBOL source programs may contain:
In either case you must specify the DG directive when you submit such source programs to this COBOL system. Your Object COBOL User Guide contains full details on how to set such system directives.
Your Language Reference - Additional Topics contains the DG syntax which is not found in the standard Micro Focus COBOL language. When you set the DG directive, the DG syntax is enabled in the Micro Focus COBOL language.
Features which are syntactically the same as Micro Focus COBOL features but have different behavior at run time, are described in the following sections of this chapter. Unless you set the DG directive at the time the object code is produced, this syntax behaves in the standard Micro Focus COBOL manner, as documented in your Language Reference.You do not need to amend DG Interactive COBOL source programs which contain these features, but if you try to submit them to this COBOL system without setting the DG directive they may not behave as you expect.
Your Language Reference lists all the words that are reserved in your version of the COBOL system. If you have included any of these words as user-defined words in your DG Interactive COBOL program, we advise that you use the REMOVE directive to disable the relevant reserved words in this COBOL system. See your Object COBOL User Guide for details of this directive.
The environment dependent feature of DG Interactive COBOL which allows you to use an extra 69 characters in addition to the 96 characters in the ASCII set, is not supported by this COBOL system.
DG Interactive COBOL file status and other exception values are not supported by this COBOL system, as they are environment dependent. If you wish to maintain a common source for programs used by both systems, you should maintain COPY-files of the file status values returned by each system.
DG Interactive COBOL system calls are environment dependent, and are not supported by this COBOL system. Under this COBOL system you cannot pass a switch in a CALL statement; you should use Linkage Section items to communicate between programs.
DG Interactive COBOL allows a main program to access its Linkage Section but this facility is not supported by this COBOL system. We recommend that if a program is to be accessed as a main program, you transfer the Linkage Section entries into Working-Storage.
DG Interactive COBOL allows arithmetic of group level items, but this is not supported by this COBOL system. We recommend that you redefine such fields into numeric items to overcome this problem.
DG Interactive COBOL run-time switches A to Z, inclusive, are mapped onto switches 1 to 26, respectively, in this COBOL system. See your Object COBOL User Guide for details of the run-time switches.
The DG Interactive COBOL system allows the Program-ID and a data item in that program to have the same name. However, this COBOL system does not allow the use of the same name for the Program-ID and a data item in a program, requiring instead that each should be unique. We recommend that you either change the program-name in the Program-ID and in any programs that call this program, or change the name of the data item.
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| Introduction to Conversion Series 5 | Reformatting a DG COBOL Source File | |