Re: Long Constant Names

[Tony Carolla <carolla@xxxxxxxxx>]

Exactly.  It seems that if the data contained in the variable is not
to be changed, it should be read only.  A READONLY keyword would work.
 But then again, wouldn't that also work on a standalone field, making
the 'C' specifier obsolete?

     D Combo           S              3A   Inz('CM') READONLY

instead of 

     D Combo           C                   Const('CM')

The way I see it, you have the CONST(' ') keyword, why not just extend
it's use to be allowed inside data structures?

On Tue, 4 Jan 2005 12:32:34 -0600, Bob Cozzi <cozzi@xxxxxxxxx> wrote:
> You mean you want a read-only variable?
> 
>      D FN              DS                  Qualified
>      D  Acro                          3A   Inz(*Blanks)
>      D  Chunk                        21A   READONLY Inz('FILES/DOCTRL3')
> 
> 
> -----Original Message-----
> From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
> On Behalf Of Tony Carolla
> Sent: Tuesday, January 04, 2005 12:23 PM
> To: RPG programming on the AS400 / iSeries
> Subject: Re: Long Constant Names
> 
> I use constant fields for a few things, commands strings I intend to
> use for system() commands, and all literals I intend to use and not
> modify at runtime.
> 
> What I was asking for was the ability to create a data structure, with
> certain elements that remained constant. i.e.
> 
>      D FN              DS                  Qualified
>      D  Acro                          3A   Inz(*Blanks)
>      D  Chunk                              Const('FILES/DOCTRL3')
> 
> The second component of the data structure should never change.  In my
> mind, it should be declared constant.
> 
> On Tue, 04 Jan 2005 13:13:10 -0500, Barbara Morris <bmorris@xxxxxxxxxx>
> wrote:
> > Tony Carolla wrote:
> > >
> > > When you say users wanted to allow CONST for variables, that can be
> > > inz'd but not modified, isn't this the definition of a Constant.  If
> > > you specify a 'C', and use the CONST keyword, voila.  You have
> > > initialized a variable that can't be modified.
> > >
> > > By variable, are you referring to using it in a Data Struct?
> > >
> >
> > Yep, you're right that constant standalone fields wouldn't be that
> > useful except possibly for arrays (I guess they would be initialized
> > through CTDATA or FROMFILE or maybe (WACI) there would be some keyword
> > to allow update in the *INZSR).
> >
> > --
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> >
> 
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