On 08/04/2020 23.27, Hubert Tong via SG16 wrote:
> Seems GCC is right again...
>
> \u0300, whether the result of forming a UCN or physically present as a UCN is a string of six characters from the basic source character set...

So, it's six characters, so

#define accent(x) x ## \u0300

becomes


#define accent(x) x ## \ u0300

with \ a lone character and u0300 a separate preprocessing-token / identifier.

Disturbing UCNs like that is really counter-intuitive.
We should fix that.

Jens