Mixing operations with signed and unsigned types

[Stewart Gordon]

bearophile wrote:
> Stewart Gordon:
<snip>
>> If we also change array indices to be signed, it would break that
>> code that sensibly uses unsigned types, which is probably worse.
> 
> Yes, of course that code needs to be fixed after the change I have 
> suggested. A "breaking change" means that some of the old code needs to 
> be fixed.

That code needs to be "fixed"?  My point was that being forced to use 
signed types for values that cannot possibly be negative doesn't to me 
constitute fixing anything.

Stewart.