On Tue, 5 Jul 2005 09:19:42 +0200 (CEST)
"Peter Vreman" <[EMAIL PROTECTED]> wrote:
> The following code also fails with an overflow
>
> {$Q+}
> var
> v : cardinal;
> begin
> v:=100;
> inc(v,-1);
> end.
>
> The reason is that -1 is in fact an addition of $ffffffff resulting in the
> carry flag being set and therefor an overflow.
If adding a negative number to an unsigned one, the overflow flag needs to be
inverted ?
Micha
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