[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [open-cobol-list] Information hiding
From: |
john Culleton |
Subject: |
Re: [open-cobol-list] Information hiding |
Date: |
Fri, 1 Mar 2013 13:17:20 -0500 |
On Thu, 28 Feb 2013 01:10:34 -0500
Patrick <address@hidden> wrote:
> Hi Everyone
>
> I am studying Cobol everyday and making progress. I do have a
> question about information hiding though.
>
> In most languages I have encountered there is some sort of
> associative array. If we have arrays foo and boo they could both have
> a key doo. doo is local to the array. In Cobol it looks like
> everything in the working storage section is global. I realize that
> with foo.doo and boo.doo there are not really two doo variables as
> they are part of a larger structure but for simplicity sake, we could
> sort of think of them as two variables. Is it possible to create this
> in Cobol?
>
> I could imagine needing to use the same name twice. I thought that
> the 05 tagged variables were local to their 01 parent but it now
> seems that they are sort of tethered together with it but also global.
>
> Thanks for reading, hope this email was clear, I am pretty
> sleepy-Patrick
>
>
>
Don't forget the indexed sequential file format. You can have one
primary key (required) and several secondary keys. This can be a
good substitute for an in-memory table, depending on the
application of course. See pages 4-9,6-70 and 6-74 in the
Manual. I seldom use tables in COBOL.
--
John Culleton
Wexford Press
Free list of books for self-publishers:
http://wexfordpress.net/shortlist.html
PDF e-book: "Create Book Covers with Scribus"
available at http://www.booklocker.com/books/4055.html
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- Re: [open-cobol-list] Information hiding,
john Culleton <=