----- Original Message ----- From: "Gabriel Dos Reis" > | > | > Martin Wodok <m.wodok@xxxxxxxxx> writes: > | > | Assigning 1000 is of course out of bounds for "unsigned char", thus the > | > > | > No, it is not. Unsigned integer types are modulo types; it is no overflow. > | > | Yes, they're modulo types, that's why this is NOT an error, > > The argument was that it makes sense to issue a warning when the the > code is dubious -- not just an error. However, in this case, modulo > arithmetic for unsigned int is a characteristic propery. > Consequently, it does not make much sense to warn about it. > Yet gcc (as distinct from g++) does issue a warning about this. At least that's the case for me with versions 3.2.2 and 3.4.4. Is that an instance of gcc doing something that doesn't make much sense ? That's not a rhetorical question, btw. I anticipate that your answer is "yes" - but faik there may well be mitigating circumstances that I'm unaware of. Cheers, Rob