RE: bsearch on partial array elements

[Joel Fritz <JFritz@xxxxxxxxxxxxxxxx>]

I'm assuming you're using the C function.  Seems to me you can write your
comparison procedure to consider only the first 30 bytes of the array
element.  E.g. 


when lookupval = %subst(cellval, 1, 30)
       ....................

or use a data structure if you're worried about overhead.


> -----Original Message-----
> From: David.Biggs@bernardmatthews.com
> [mailto:David.Biggs@bernardmatthews.com]
> Sent: Thursday, January 13, 2000 7:45 AM
> To: rpg400-l@midrange.com
> Subject: bsearch on partial array elements
> 
> 
> 
> 
> I have an RPG IV program in which I am using 'bsearch' to 
> search a number of
> arrays, which is working fine (and quickly too !). However, 
> one of the arrays is
> defined with an element length of 37A, but I want to search 
> it by the first 30
> bytes only.
> The trailing 7 bytes of the array elements will not contain 
> blanks, so I assume
> that the bsearch routine will not work correctly when 
> comparing 30A to 37A.
> 
> Any ideas how I can get round this without creating more arrays ?
> 
> TIA,
> Dave Biggs
> 
> 
> 
> 
> 
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