[Bug c++/57239] cannot handle inner/nested class templates with non-type parameter packs that were declared in the outer/containing class

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57239

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Until someone analyses it and convinces themselves it's a bug.

Not providing a complete testcase doesn't help. Code missing headers, even
standard ones, is not complete, and certainly doesn't compile "out of the box"
because I need to add headers. http://gcc.gnu.org/bugs/ clearly says not to
leave headers out, why should I have to figure out which headers you failed to
include in the testcase to analyse your bug report?