typename20.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

// Build don't link:
// Origin: Mark Mitchell <[e-mail]>
// Special g++ Options:

template <class T>
struct B {
  typedef int I;
};

template <class T, class X = int>
struct S : public B <T> {
  struct I {
  };

  void f(int i = true) {}
};