question regarding new warning

[Florian Weimer]

On 03/27/2014 08:44 AM, Andrew Haley wrote:

> On 03/26/2014 03:05 PM, Daniel Gutson wrote:
>
>>      assigning a negative literal to an unsigned variable issues no warning:
>>
>>
>>     unsigned int x;
>>     x =- 4;
>>
>> This is specially important in typos when -= was intended instead of =-
>>
>> Would be acceptable if I add a new warning to handle this, i.e.
>>    -Wnegative-to-unsigned
>> or alike?
>
> Assigning a negative literal to an unsigned variable is well-defined
> standard C.  Is it really appropriate to warn for correct code?

Yes, this warning needs to take whitespace into account.  But then, I 
suppose it would be fine.

-- 
Florian Weimer / Red Hat Product Security Team