Modulo Bug?
bearophile
bearophileHUGS at lycos.com
Sat Aug 11 09:12:07 PDT 2012
David:
> -1 % 16 = -1
>
> Shouldn't that be 15? It seems like the sign is ignored for the
> modulo.
>
> Is this a bug or intended behaviour? The Python implementation
> returns here, as expected, 15.
It's a localized but important design bug of languages like C
that D has carried over for backward compatibility reasons. D %
has caused bugs in my code. I suggest to not use the built-in %
on numbers that can be negative, unless you really know what you
are doing.
Bye,
bearophile
More information about the Digitalmars-d
mailing list