[Bug c++/71784] [4.9/5/6/7 Regression] ICE on invalid code in push_access_scope, at cp/pt.c:229

[mct_ancs at yahoo dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71784

--- Comment #12 from Ela <mct_ancs at yahoo dot com> ---

 Example:

  When an usual member function is missing (say template class
 instantiated with extern), the compiler (4.9.3, 6.1) will complain
 in_clear about the missing function.

  When a ref-qual'ed one is missing it will show some mangle _Z-etc-etc
 as missing.

  If it's just the class templated, then letting the class instantiate
 its own functions => will work.

  If the function is nested templated, then it has to be explicitly 
 instantiated and again ICE.