[Bug c++/66670] "template argument deduction/substitution failed" with function pointers and multiple parameter packs

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66670

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Clang bug: https://bugs.llvm.org/show_bug.cgi?id=23949