On Fri, 22 Sept 2023 at 20:49, Kees Cook <keesc...@chromium.org> wrote:
>
> 2) __cplusplus is relatively common in UAPI headers already:
> $ git grep __cplusplus -- include/uapi | wc -l
> 58
Look a bit closer.
Most of those - by far - is for the usual
#if defined(__cplusplus)
extern "C" {
#endif
pattern. IOW, it's explicitly not different code, but telling the C++
compiler that "this is C code".
So this new #ifdef is an ugly new pattern of "do totally different
things for C++".
Apparently required, but very ugly nonetheless.
Linus
