Array (Insert,Delete)

[mark smit]

Hello Everyone,

Can somebody explain to me some of the pitfalls in using ARRAY INSERT and DELETE with UDTs. I also would like to know why ARRAY INSERT and DELETE do not resize the array.

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Cheers!

[John Petty]

simply put you can't use udt's
see http://www.powerbasic.com/support/pb...ad.php?t=18113

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[Eddy Van Esch]

originally posted by john petty:
simply put you can't use udt's

yes you can john.
mark, check out this post: http://www.powerbasic.com/support/pb...ad.php?t=18125
kind regards
eddy



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[email protected]

[Lance Edmonds]

Eddy, that is not quite the same discussion...

In a nutshell, you can use the ARRAY statement on arrays in a UDT as long as you use DIM..AT to create a normal array at the same location of memory as the UDT member array. The 1st reply points to an example of this.


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Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>

[mark smit]

Hey Guys,

Thanks for the reply's but this is what I'm really after. Is the following "legal" are there any know bug's in this method?

type RECORD_STRUCT
    lPointer as long
    wUpdated as word
    wDeleted as word
end type
 

global Record() as RECORD_STRUCT
 

function DeleteRecord(byval lRow as long) as long
    local lCount as long
 

    lCount = ubound(Record)
    decr lCount
 

    array delete Record(lRow)  rem Will this work?
    redim preserve Record(lCount)
    function = min(lRow,lCount)
end function
 

function pbmain as long
    local lRow as long
 

    redim Record(100)
 

    lRow = DeleteRecord(20)
end function

I know there is a problem with ARRAY INSERT when used with UDT arrays so does the same apply for ARRAY DELETE ?

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Cheers!



[This message has been edited by mark smit (edited April 25, 2001).]

[Lance Edmonds]

ARRAY DELETE is 100% fine - there have been ZERO problem reports!

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Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>