[Bug c++/59498] [DR 1430][4.9/4.10 Regression] Pack expansion error in template alias

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59498

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |SUSPENDED
         Depends on|                            |51239
            Summary|[4.9/4.10 Regression] Pack  |[DR 1430][4.9/4.10
                   |expansion error in template |Regression] Pack expansion
                   |alias                       |error in template alias

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
Actually, no, this is very much a Core 1430 issue; there's no way to mangle
variadic_alias<T...> without mentioning the name of an alias template in the
mangling, and they're supposed to be entirely transparent.  This only works in
4.8 by accident because checking is disabled for the release.