[Gambas-user] Should Gambas detect integer overflow?
adamnt42 at gmail.com
Mon Dec 5 09:29:26 CET 2022
I think it should raise an error. Out of curiosity, is it a flag? (To
save me the effort as I presume you already know) If so then if a coder
is "relying" on integer overflow tricks then they should be clever
enough to disable the flag - if they really want to.
On 5/12/22 6:03 am, Benoit Minisini wrote:
> Hi again,
> The 'gcc' compiler allows Gambas to detect integer overflows when
> doing integer arithmetic with a very light penalty.
> Alas the other compiler, 'clang', does not support that.
> But I guess 'clang' will certainly gain a similar feature in the
> future, if 'gcc' has it.
> So, I wonder if Gambas should raise an error if an integer overflow is
> detected (when doing an integer +, - or *)?
> Note that the change is not backward compatible for program that
> explicitly rely on the undefined behaviour of overflow arithmetic in
> C. Which is not a good idea anyway...
> What do you think?
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