Yes, even c99 has them IIRC. The issue that was called out, however, was the use of "FOO(x, ## __VA_ARGS__)". GNU C has an extension that causes the ',' to be

Yes, even c99 has them IIRC. The issue that was called out, however, was the use of "FOO(x, ## __VA_ARGS__)". GNU C has an extension that causes the ',' to be removed if __VA_ARGS__ is empty. AFAIK, it is not standard.