On 10/26/2010 07:28 PM, ppmoore wrote:
>
> Thanks for the replies.
Please don't top-post on the gcc lists.
> I would thought it reasonable that gcc would have flagged a warning, unless
> the function was explicitly invoked with a (void), such as
> (void) min(x,y);
>
> Or is this wrong?
Well, do you want to cast every printf() to void?
Andrew.
>
> ppmoore wrote:
>>
>> Hello,
>>
>> We had an interesting error that was undetected in gcc:
>> {
>> unsigned long a;
>> unsigned long x=3;
>> unsigned long y=4;
>> a =
>> min(x,y);
>> }
>>
>> I've simplified the example. In the original code, the contents of the
>> min() statement were longer, so that it was on a separate line from the
>> assignment operation.
>>
>> Because of a bug, the assignment line was removed, and we had the
>> following code:
>> {
>> unsigned long a;
>> unsigned long x=3;
>> unsigned long y=4;
>> min(x,y);
>> }
>>
>> Should this be picked up as a warning/error?
>> Neither -Wall or -Wextra picked it up.
>>
>> Many thanks,
>> Paul
>>
>
