Apparently unsigned types really are necessary

[torhu]

On 22.01.2012 13:49, Jonathan M Davis wrote:
> On Sunday, January 22, 2012 13:40:08 Marco Leise wrote:
>>  I heard that in the past, but in my own experience using unsigned data
>>  types, it did not cause any more bugs. OTOH, textual output is more
>>  correct and I find code easier to understand, if it is using the correct
>>  'class' of integers. But this "a lot of programmers who don't particularly
>>  like using unsigned types" must come from somewhere. Except for existing
>>  bugs in the form of silent under-/overflows that do not appear alarming in
>>  a debugger due to their signedness, I've yet to see a convincing example
>>  of real world code, that I would write this way and is flawed due to the
>>  use of uint instead of int. Or is this like spaces vs. tabs? 'Cause I'm
>>  also a tab user.
>
> Down with tabs! ;)
>
> One issue with unsigned integers right off the bat is for loops.
>
> for(size_t i = a.length; i>  0; --i) {}
>
> is not going to work.

That'll work just fine, you probably meant '>=' ;)