Re: D spec to free format question

On 2/6/2019 12:34 PM, Burrows, Thomas 1001 wrote:

How do you turn this into a Free format statement?

D @Process s n inz('0')

The example I find online shows this.

Dcl-s @Process num inz(0) LIKE(LIMIT);

Not sure what LIMIT is????

And this line.

D dsPgms EsDS EXTNAME(SYSAPGPF) PREFIX(Gv)

You could do this:

   dcl-s  @Process   ind  inz(*off);

In the example you found, @Process would be defined the same as (LIKE) a previously defined variable called LIMIT.  If you define a variable LIKE another, typically you don't define the data type. The new variable will have the same data type as the one that it is LIKE.  However, using LIKE will not copy the initialization to the new variable.

In your second example line, the specification is defining an externally described program status data structure that will have the same field/column layout as the file or table SYSAPGPF.  The PREFIX keyword says to use prefix 'GV' before each subfield of the data structure.  'EsDS':  the 'E' says the data structure is externally described; the 'S' (case is irrelevant) says it is a program status data structure; 'DS' indicates it is a data structure; and the EXTNAME keywords specifies the name of a physical file or table that, presumably, has the fields of a program status DS predefined.  The equivalent free format code would be:

   dcl-ds  dsPgms  extname('SYSAPGPF')  psds  prefix(gv) end-ds;