[Issue 6949] no warning or error if unsigned variable is compared to 0

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=6949



--- Comment #14 from bearophile_h...@eml.cc 2012-11-30 05:25:50 PST ---
(In reply to comment #13)
> (In reply to comment #12)
> > Regarding a comment by Don, is it possible to generate a warning/error only 
> > in
> > foo() and not in bar()?
> > 
> > 
> > void foo(uint x) {
> >     if (x < 0) {} // error or warning here
> > }
> > void bar(T)(T x) {
> >     if (x < 0) {} // OK
> > }
> > void main() {
> >     foo(5U);
> >     bar(5U);
> > }
> 
> I doubt it.

I'd like a better answer about this, maybe from Don or Hara or someone that
knows this answer better.

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