https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90740
--- Comment #3 from Valentine <v at vsamko dot com> ---
Yep, it uses GCC extension.
Interesting observation that it complains about the size of buffer, that looks
to be correct as if I change to
===
char buf[SIZE];
char* pbuf = buf;
bar([pbuf, &out...](auto&... column) { (doit(column), ...); }, out...);
===
then warning goes away.
The warning is still erroneous, and shouldn't be there.
