Re: [EXTERNAL] Question on file reading

[Jon Paris <jon.paris@xxxxxxxxxxxxxx>]

It is not a "shortcut" - it is a defined language feature that has been there for years and if you wish to control the storage layout, for whatever reason, can be ver useful.


> On Jun 9, 2020, at 11:01 AM, Thomas Burrows <thomas.burrows.1957@xxxxxxxxx> wrote:
>
> Seems like a shortcut that can cost one.  Is this a recommended way to
> populate a Data Structure?  Wondering what the group thinks on this?
>
> Personally I do not like these kinds of shortcuts.  If someone is not
> familiar with the shortcut then analysis problems can happen.
>
> Just my opinion.
>
> On Tue, Jun 9, 2020 at 9:58 AM Alan Shore via RPG400-L <
> rpg400-l@xxxxxxxxxxxxxxxxxx> wrote:
>
> > Hi Thomas
> > I came from coding in COBOL, where more than one field with the same name
> > was a compile error
> > You are correct
> > ANY field with the same name - a stand-alone filed - a field in another
> > file, when a file is read - the data in those fields are all populated if
> > they are the same name and size
> > I have grown into a love hate relationship with this
> > MOST of the time - it can kill you
> > However - there ARE some times it can be great
> >
> > Alan Shore
> > E-mail : ASHORE@xxxxxxxx
> > Phone [O] : (631) 200-5019
> > Phone [C] : (631) 880-8640
> > 'If you're going through hell, keep going.'
> > Winston Churchill
> >
> > -----Original Message-----
> > From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of
> > Thomas Burrows
> > Sent: Tuesday, June 9, 2020 10:53 AM
> > To: RPG programming on the IBM i (AS/400 and iSeries) <
> > rpg400-l@xxxxxxxxxxxxxxxxxx>
> > Subject: [EXTERNAL] Question on file reading
> >
> > In RPGIV - maybe this is true in free format - if a Data Structure is
> > defined with the exact names and sizes of the fields in a file when the
> > file is read is the data structure automatically loaded?
> >
> > Personally I have never seen this before.
> >
> > Thomas
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