Re: definintion of signed integer?

[Alan Campin <alan0307d@xxxxxxxxx>]

I am guessing but one part of the equation is an unsigned integer and minus
21. My guess is that it is seeing the unsigned integer and deciding the
output of the equation is an unsigned integer then converting it to a signed
integer but never gets that far.

I would either try making the Positive value as signed or try a
%Int(PositiveValue - 21).



On Mon, Sep 27, 2010 at 2:04 PM, Koester, Michael <mkoester@xxxxxxxxxxxxx>wrote:

> I have a variable defined "3i 0", local to a subprocedure that I expect
> could be any whole number value from -128 to +127, per my understanding
> of a signed integer.  When my subprocedure puts what I expect to be a
> minus 18 into the field, I get the dreaded "MCH1216 -  too small to hold
> result" crash & burn.
>
> I'm sure I can fix it instantly by defining packed numerics, but I need
> to understand the rules.
>
> D PositiveValue            3u  0
> D NegativeValue            3i  0
>  /free
>  PositiveValue = 3;
>  NegativeValue = PositiveValue - 21;
>   [down in flames we go]
>  /end-free
>
> What could be so tough about subtracting 3 from 21 and expecting -18?
> Please set me straight here.  It's an SQLRPGLE program on a 6.1 box.
>
> Many thanks.
> Michael Koester
>
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