struct s { int f[4]; };

int foo (struct s s, int x1, int x2, int x3, int x4, int x5, int x6, int x7)
{
  return s.f[3] + x7;
}

int main ()
{
  struct s s = { 1, 2, 3, 4 };

  if (foo (s, 100, 200, 300, 400, 500, 600, 700) != 704)
    abort ();
  exit (0);
}