On Wed, May 19, 2021 at 10:26:22AM +1000, Michael Ellerman wrote:
> Guenter Roeck <linux@xxxxxxxxxxxx> writes:
> > Ah, sorry. I wasn't aware that the following is valid C code
> >
> > void f1()
> > {
> > return f2();
> > ^^^^^^
> > }
> >
> > as long as f2() is void as well. Confusing, but we live and learn.
>
> It might be valid, but it's still bad IMHO.
>
> It's confusing to readers, and serves no useful purpose.
And it actually explicitly is undefined behaviour in C90 already
(3.6.6.4 in C90, 6.8.6.4 in C99 and later).
Segher
