On Wed, May 19, 2021 at 10:26:22AM +1000, Michael Ellerman wrote:

Guenter Roeck [off-list ref] writes:

quoted

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