[Bug c++/115430] New: Cannot take address of template function

["thomaspkhealy at yahoo dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115430

            Bug ID: 115430
           Summary: Cannot take address of template function
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: thomaspkhealy at yahoo dot com
  Target Milestone: ---

template<typename... Params>
    constexpr int Func(Params&&...)
    {
        return 0;
    }

    int main(void)
    {
        constexpr auto fp1 = &Func<int,double,float>;              // compiles
        constexpr auto fp2 = (nullptr, &Func<int,double,float>);   // doesn't
compile
    }

The above program compiles without failure on LLVM clang, Microsoft Visual C++
and Intel ICX. But GNU g++ fail to compile it:

    <source>: In function 'int main()':
    <source>:10:36: error: no context to resolve type of '& Func<int, double,
float>'
      10 |    constexpr auto fp2 = (nullptr, &Func<int,double,float>);  //
doesn't compile