friend33.c

gcc-you can use this code to learn something about gcc, and inquire further into linux,

// Build don't run:
// Special g++ Options: -g

template <class P1>
struct S1
{
  struct SS1
  {
  };
  friend void Foo (const SS1& ss1)
    {
    }
};

template <class P1>
void Foo(const S1<P1>& s1)
{
  typedef typename S1<P1>::SS1 TYPE;
  TYPE t;
  Foo(t);
}

int main ()
{
  S1<double> obj;
  Foo(obj);
}