Chip,
If I interpreted it correctly, I just created this code block based on your
spec. and variable naming:
ARRAY LONGINT(array1;2)
array1{1}:=4
array1{2}:=2
ARRAY LONGINT(array2;10)
C_LONGINT($i)
For ($i;1;10)
array2{$i}:=-$i
End for
C_POINTER($Return_ptr)
C_POINTER($Column1)
$Return_ptr:=->array1
$Column1:=->array2
C_LONGINT($Item)
$Item:=2
C_LONGINT($Result)
$Result:=$Column1->{$Return_ptr->{$Item}}
TRACE
It doesn't generate an error for me and the debugger shows the expected values
when I execute it. Is my implementation "incorrect"? ...or there is it down to
some other issue??
Regards,
Narinder Chandi,
ToolBox Systems Ltd.
--
-----Original Message-----
From: Chip Scheide <[email protected]>
Date: Tuesday, 9 July 2019 at 17:57
To: 4D Tech Mailing List <[email protected]>
Cc: Narinder Chandi <[email protected]>
Subject: Re: What is wrong with this statement? Corrected
yes - an intermediate value works, I was more wondering why the
original statement will not work...
as it appears to be a perfectly valid statement.
Replacing the array element reference with a simple math formula works.
i.e.
Array{2+8-6}
give the value of element 4 (assuming there is one)
there should not be an issue with a valid formula inside set
brackets....
ohh well...
Chip
On Tue, 09 Jul 2019 17:32:10 +0100, Narinder Chandi via 4D_Tech wrote:
> Does it work if you do use an intermediate value? e.g.
>
> $value:= $Return_ptr-> {$Item}
> $Result:= $Column1 ->{$value}
>
> Regards,
>
> Narinder Chandi,
> ToolBox Systems Ltd.
> --
>
> -----Original Message-----
> From: 4D_Tech <[email protected]> on behalf of 4D Tech
> Mailing List <[email protected]>
> Reply-To: 4D Tech Mailing List <[email protected]>
> Date: Tuesday, 9 July 2019 at 17:16
> To: 4D Tech Mailing List <[email protected]>
> Cc: Chip Scheide <[email protected]>
> Subject: Re: What is wrong with this statement? Corrected
>
> My bad -- the correct line of code that is failing is:
> $Result:= $Column1 ->{ $Return_ptr-> {$Item} }
>
> On Tue, 9 Jul 2019 12:14:37 -0400, Chip Scheide via 4D_Tech wrote:
> > $Result:= $Column1{ $Return_ptr{$Item} }
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