On 9 May 2018 at 11:42, David Brown wrote:
> On 09/05/18 12:31, Jonathan Wakely wrote:
>> IIUC __attribute__((warning("..."))) requires linking to an extern
>> function, which might not be desirable in the general case for assert.
>>
>
> Can you not use this?
>
> static void __attribute__((warning("Smart assert always failed")))
> __smartAssertAlwaysFail(void) {}
I can't remember if I tried a static function, but it would create ODR
violations in C++ code if inline functions or templates call a static
function, because every translation unit would resolve the call to a
different function. I did try an inline function, and that doesn't
work. It would probably be harmless, but still technically undefined
behaviour.
> (In the case of the error, I see it as an advantage that the error
> function is not defined and will also give a linker error if I somehow
> manage to compile code with the call left in.)
Indeed.
