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// { dg-do compile }

// Origin: Giovanni Bajo 

// DR166: Friend declarations of template-ids

namespace N {

  template  void f(T);

  void g();

  namespace M {

    class A {

      friend void f(int); // N::f

      static int x;   // { dg-error "private" }

    };

    class B {

      template  friend void f(T);  // M::f

      static int x;   // { dg-error "private" }

    };

    class C {

      friend void g(); // M::g

      static int x;   // { dg-error "private" }

    };

    template  void f(T)  // will be instantiated as f

    {

      M::A::x = 0;    // { dg-error "within this context" }

      M::B::x = 0;

    }

    template <> void f(int)

    { M::A::x = 0; }      // { dg-error "within this context" }

    template <> void f(double )

    {

      M::B::x = 0;

      M::f(0);   // { dg-message "required" }

    }

    void g(void)

    { M::C::x = 0; }

  }

  template  void f(T)  // will be instantiated as f

  {

    M::A::x = 0;       // { dg-error "within this context" }

    M::B::x = 0;       // { dg-error "within this context" }

  }

  template <> void f(int )

  {

    N::f(0);        // { dg-message "required" }

    M::A::x = 0;

    M::B::x = 0;       // { dg-error "within this context" }

  }

  template <> void f(char )

  { M::A::x = 0; }      // { dg-error "within this context" }

  void g(void)

  { M::C::x = 0; }      // { dg-error "within this context" }

}