RE: More than 99 indicators needed -- RPG400-L

I have not followed this thread very closely, but I feel that if there
are that many indicators involved, would it not be much clearer, cheaper
in the end if there were just different record formats for different
situations? It might be me, but as soon as I see oodles of indicators I
get a bit a creepy feeling that maintenance will never be trivial
anymore.

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-
bounces@xxxxxxxxxxxx] On Behalf Of GUY_HENZA@xxxxxxxxxxxxxx
Sent: maandag 20 oktober 2008 13:04
To: RPG programming on the AS400 / iSeries
Subject: RE: More than 99 indicators needed

I believe the answer is in-between your two points of view. Using
the
first two indicators you can get;
*OFF *OFF = A
*OFF *ON = B
*ON *ON = C
*ON *OFF = D
Using the third position for indicators 3-99 there would be 96 A's,
96
B's, 96 C's and 96 D's that could be controlled *ON or OFF = 384
fields.

Regards,

Guy

Inactive hide details for "DeLong, Eric"
<EDeLong@xxxxxxxxxxxxxxx>"DeLong,
Eric" <EDeLong@xxxxxxxxxxxxxxx>

"DeLong, Eric" To: "RPG programming on
the
<EDeLong@xxxxxxxxxxxxxxx> AS400 / iSeries"
Sent by: <rpg400-l@xxxxxxxxxxxx>
rpg400-l-bounces@xxxxxxxxxxxx cc:
Subject: RE: More than 99
10/17/2008 04:39 PM indicators needed
Please respond to RPG
programming on the AS400 /
iSeries

Mel,

You give up the ability to control all fields concurrently. If

each

field were written individually, then your premise is correct.

Eric DeLong

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Mel Rothman
Sent: Friday, October 17, 2008 2:38 PM
To: rpg400-l@xxxxxxxxxxxx
Subject: Re: More than 99 indicators needed

Bruce,

Perhaps I have misunderstood your premise, so please correct me if
that
is the case.

Anyway, it seems that 3 indicators can be used to define 8
independent
conditions just as 3 binary bits can represent the values 0

through

7.

For example:

N01N02N03 (0)
N01N02 03 (1)
N01 02N03 (2)
N01 02 03 (3)
01N02N03 (4)
01N02 03 (5)
01 02N03 (6)
01 02 03 (7)

A total of 784 unique combinations can be made, for example, by
using
indicators 01 and 02 in the first two positions and using, in turn,
indicators 3 through 99 in the third position.

Mel Rothman

Bruce Vining wrote:
> Agreed and further I "don't think", rather I will guarantee that
you
can't take an arbitrary number of independent indicators N (for
arguments sake lets say N = 99) which can represent N (99)
INDEPENDENT
conditions and by Anding and/or Oring these indicators get a number
of
independent conditions that is greater than N. In fact every time
you
And/Or indicators you are REDUCING the number of independent
conditions
that can be represented. You can, with Anding/Oring get a huge
number
of combinations, but these combinations also have a huge number of
dependencies (which, going back to the original question, will

cause

fields tho either print or not print when you desire the opposite
result).
>
> Bruce
>
> Barbara Morris <bmorris@xxxxxxxxxx> wrote:
> Tom Liotta wrote:
>> I guess that the point I'm making is that _any_ subsequent
developer
>> better be very clear on what is going on with this.
>>
>
> And as Bruce Vining pointed out, it doesn't work anyway. I don't
think

> there's any way to use 99 indicators to represent any
_combination_ of

> 100 truth values. Using the double-indicator scheme would work if
you
> only wanted to print out one field, but if you want to print out
more
> than one, it's not possible to set on an arbitrary combination of
the
> double-indicators without accidentally setting on additional
> double-indicators. Setting the double indicators 0147 and 0254
also
> sets on 0154 and 0247.
>

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