RE: Sorting an OVERLAY array.

I see two possible questions here:

1--Sort by compound key
You need a sub field that overlays your two sort keys.  You can then sort
that array with SORTA.  Actually using the entire array as your sort key
would give you the same result because of the order of the key fields in
your example.


2--Two sorts
You can use SORTA to sort by TXSEQ or by TXLIN.

In either case the entire array will be sorted exactly the way you want.
This is one of the nicest features of array overlays.  You'll need to use
the ascend or descend keywords on the D specs.    

> -----Original Message-----
> From: Bartell, Aaron L. (TC) [mailto:ALBartell@taylorcorp.com]
> Sent: Thursday, March 29, 2001 6:50 AM
> To: 'RPG400-L@midrange.com'
> Subject: Sorting an OVERLAY array.
> 
> 
> Here is an array that I need sorted first by TXSEQ and then 
> by TXLIN.  How
> would I go about doing that?
> 
> D                 DS                              INZ
> 
> D TXData                       126    DIM(TXSize)
> 
> D  TXSEQ                         4S 0 OVERLAY(TXData)     
> Detail Line Number
> 
> D  TXLIN                         4S 0 OVERLAY(TXData:5)   
> Text Seq Number
> 
> D  TXTXT                       100    OVERLAY(TXData:9)   Text
> 
> D  TXFONT                        5    OVERLAY(TXData:109) Font Id
> 
> D  TXINK                        10    OVERLAY(TXData:114) Ink Color
> 
> D  TXPNT                         3    OVERLAY(TXData:124) 
> Point Size     
> 
> I am basically wondering if there is an opcode that will sort 
> an array for
> me.  If not I suppose I will have to sort them myself.
> 
> Any help is greatly appreciated,
> 
> Aaron Bartell    
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