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The following is the issue:
D Dlr 94A Varying
This puts a two-byte 10i0 value ("2 byte integer") prefix in the data structure.
Thus it starts two positions to the right of where you "feel" it should be.
-Bob Cozzi
www.RPGxTools.com
RPG xTools - Enjoy programming again.
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On
Behalf Of Tim Kredlo
Sent: Wednesday, February 08, 2006 8:19 PM
To: RPG400-L@xxxxxxxxxxxx
Subject: Problem with based data structures
Help!
I am having difficulty accomplishing the following:
I need to create and fill a data structure that will hold an array of up to
approximately 2500 elements.
The exact number will not be known until run time.
Each element of the array will be like (likeds) a 94 character data
structure.
I need to be able to resize the 2500 element data structure to remove any
unfilled elements.
I need to be able to sort the data structure by any of the sub-fields.
This is what I have done so far:
Declared a data structure 'template' for each element of both arrays (Dlr
and Dlr1):
D DlrDs Ds Qualified
D Idx Like(Int10)
D Code Like(CsRecd.CsDele)
D Type Like(A_1)
D Grp# Like(CsRecd.CsGrp#)
D Dlr# Like(CsRecd.CsDlr#)
D Name Like(CsRecd.CsName)
D Stat Like(DaRecd.DaStat)
D City Like(DaRecd.DaCity)
A_1 is declared as 1A
CsRecd.CsDele is declared as 1A
CsRecd.CsGrp# is declared as 6P 0
CsRecd.CsDlr# is declared as 6P 0
CsRecd.CsName is declared as 40A
DaRecd.DaStat is declared as 10A
DaRecd.DaCity is declared as 20A
Declared 2 pointers:
D DlrBase S * Inz
D DlrBas1 S * Inz
Declared two data structures based on the above pointers:
D Ds Based(DlrBase)
D Dlr 94A Varying
D Dim(2500)
D Ascend
D DlrIdx Like(DlrDs.Idx)
D Overlay(Dlr : 1)
D DlrCode Like(DlrDs.Code)
D Overlay(Dlr : *Next)
D DlrType Like(DlrDs.Type)
D Overlay(Dlr : *Next)
D DlrGrp# Like(DlrDs.Grp#)
D Overlay(Dlr : *Next)
D DlrDlr# Like(DlrDs.Dlr#)
D Overlay(Dlr : *Next)
D DlrName Like(DlrDs.Name)
D Overlay(Dlr : *Next)
D DlrCity Like(DlrDs.City)
D Overlay(Dlr : *Next)
D DlrStat Like(DlrDs.Stat)
D Overlay(Dlr : *Next)
D Ds Based(DlrBas1)
D Dlr1 94A Dim(2500)
D Ascend
D Dlr1Idx Like(DlrDs.Idx)
D Overlay(Dlr1 : 1)
D Dlr1Code Like(DlrDs.Code)
D Overlay(Dlr1 : *Next)
D Dlr1Type Like(DlrDs.Type)
D Overlay(Dlr1 : *Next)
D Dlr1Grp# Like(DlrDs.Grp#)
D Overlay(Dlr1 : *Next)
D Dlr1Dlr# Like(DlrDs.Dlr#)
D Overlay(Dlr1 : *Next)
D Dlr1Name Like(DlrDs.Name)
D Overlay(Dlr1 : *Next)
D Dlr1City Like(DlrDs.City)
D Overlay(Dlr1 : *Next)
D Dlr1Stat Like(DlrDs.Stat)
D Overlay(Dlr1 : *Next)
I had hoped that I could have declared these using 'likeds', but I don't
think I could have made them 'varying' or been able to sort by the
sub-fields. Please tell me I am wrong about that, because it sure would make
maintenance easier.
What I would really like to be able to do is "SortArray
(QlfdDs((QlfdDs.Field1:Ascend)(QlfdDs.Field2:Descend)))".
(In my dreams)
I then created 2 user spaces, initialized with blanks('x'40') and retrieved
their pointers (DlrBase and DlrBas1).
I filled elements of Dlr1, the non-varying array, from files till done and
kept the number of elements filled (Idx = 1820 today).
The following statement was then executed to fill Dlr and resize it to only
contain the filled elements:
%SubArr( Dlr : 1 : Idx ) = %SubArr ( Dlr1 : 1 : Idx );
Immediately after that statement was executed, debug evals showed the
following:
> EVAL dlr1(1)
DLR1(1) =
....5...10...15...20...25...30...35...40...45...50...55...60
1 ' -AA000000000050MISCELLANEOUS '
61 ' '
> EVAL dlr(1)
DLR(1) =
....5...10...15...20...25...30...35...40...45...50...55...60
1 ' -AA000000000050MISCELLANEOUS '
61 ' '
I don't know if the e-mail formatting will show this correctly, but the end
"'" for DLR(1) is in position 95 and the end "'" for DLR(1) is in position
97.
I then did the following debug evals:
> EVAL dlr1name(1)
DLR1NAME(1) = 'MISCELLANEOUS '
> EVAL dlrname(1)
DLRNAME(1) = '50MISCELLANEOUS '
Notice that the two data structures (Dlr and Dlr1) are declared identically,
but the DlrName field now appears to start 2 characters prior to Dlr1name
field.
I thought that perhaps this was an 'align' issue, so stuck 'align' on the
declaration for both Dlr and Dlr1 and recompiled. (I don't know if there is
more that I would need to do.)There were no warnings in the compile listing
about mis-aligned fields. I re-ran and received the same results.
I am stuck as to where to look next.
All code and debug info was 'cut and pasted' into this email. So if you see
what appears to be a typo, it is probably wrong in my code and needs to be
pointed out.
Thanks in advance for any help.
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