question regarding new warning

[Andrew Haley]

On 03/27/2014 08:52 AM, Florian Weimer wrote:
> 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.

I agree.

Andrew.