Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Programming Guide


MDECK

The MDECK compiler option specifies that output from library processing (that is, expansion of COPY, BASIS, REPLACE, or EXEC SQL INCLUDE statements) is written to a file.

When Enterprise COBOL is running under z/OS UNIX, the MDECK output is written in the current directory to a file that has the same name as the COBOL source file and a suffix of .dek. For Enterprise COBOL running under TSO or batch, the MDECK output is written to the data set defined by the SYSMDECK DD statement, which must specify an MVS data set that has RECFM F or FB and an LRECL of 80 bytes.

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MDECK option syntax

   .-NOMDECK---------------------.   
>>-+-----------------------------+-----------------------------><
   '-MDECK-+-------------------+-'   
           |   .-COMPILE---.   |     
           '-(-+-NOCOMPILE-+-)-'     

Default is: NOMDECK

Abbreviations are: NOMD, MD, MD(C), MD(NOC)

Suboptions:

When you specify MDECK with no suboption, MDECK(COMPILE) is implied.

Option specification:

You cannot specify MDECK in a PROCESS or CBL statement. You can specify the option only by using:

Contents of the MDECK output file:

When you use the MDECK option with the CICS compiler option (integrated CICS translator) or the SQL compiler option (DB2 coprocessor), in general, EXEC CICS or EXEC SQL statements in the COBOL source program are included in the MDECK output as is. However, EXEC SQL INCLUDE statements are expanded in the MDECK output in the same manner as COPY statements.

CBL, PROCESS, *CONTROL, and *CBL card images are passed to the MDECK output file in the proper locations.

For a batch compilation (multiple COBOL source programs in a single input file), a single MDECK output file that contains the complete expanded source is created.

Any SEQUENCE compiler-option processing is reflected in the MDECK file.

COPY statements are included in the MDECK file as comments.


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