[Bug c++/82657] when using a template function pointer as a non-type template parameters, the template function will not be defined in some situation

[niqiuha at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82657

--- Comment #1 from la wanz <niqiuha at gmail dot com> ---
Created attachment 42432
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42432&action=edit
the code fail to compile