[Bug c++/47436] [C++0x] Variadic base-specifier-list of union rejected

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47436

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-09-22 19:19:21 UTC ---
I'd go for "error: variadic template A<T> is invalid because every valid
specialization requires an empty template parameter pack"

but I'm not sure that would be needed if the original error simply said "error:
unions cannot have base classes" - I think that's clear enough