Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /external/bsd/llvm/dist/clang/test/CXX/class.access/class.friend/p9-cxx0x.cpp 
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
// RUN: %clang_cc1 -fsyntax-only -verify %s

// C++98 [class.friend]p7:
// C++11 [class.friend]p9:
//   A name nominated by a friend declaration shall be accessible in
//   the scope of the class containing the friend declaration.

// PR12328
// Simple, non-templated case.
namespace test0 {
  class X {
    void f(); // expected-note {{implicitly declared private here}}
  };

  class Y {
    friend void X::f(); // expected-error {{friend function 'f' is a private member of 'test0::X'}}
  };
}

// Templated but non-dependent.
namespace test1 {
  class X {
    void f(); // expected-note {{implicitly declared private here}}
  };

  template <class T> class Y {
    friend void X::f(); // expected-error {{friend function 'f' is a private member of 'test1::X'}}
  };
}

// Dependent but instantiated at the right type.
namespace test2 {
  template <class T> class Y;

  class X {
    void f();
    friend class Y<int>;
  };

  template <class T> class Y {
    friend void X::f();
  };

  template class Y<int>;
}

// Dependent and instantiated at the wrong type.
namespace test3 {
  template <class T> class Y;

  class X {
    void f(); // expected-note {{implicitly declared private here}}
    friend class Y<int>;
  };

  template <class T> class Y {
    friend void X::f(); // expected-error {{friend function 'f' is a private member of 'test3::X'}}
  };

  template class Y<float>; // expected-note {{in instantiation}}
}

// Dependent because dependently-scoped.
namespace test4 {
  template <class T> class X {
    void f();
  };

  template <class T> class Y {
    friend void X<T>::f();
  };
}

// Dependently-scoped, no friends.
namespace test5 {
  template <class T> class X {
    void f(); // expected-note {{implicitly declared private here}}
  };

  template <class T> class Y {
    friend void X<T>::f(); // expected-error {{friend function 'f' is a private member of 'test5::X<int>'}}
  };

  template class Y<int>; // expected-note {{in instantiation}}
}

// Dependently-scoped, wrong friend.
namespace test6 {
  template <class T> class Y;

  template <class T> class X {
    void f(); // expected-note {{implicitly declared private here}}
    friend class Y<float>;
  };

  template <class T> class Y {
    friend void X<T>::f(); // expected-error {{friend function 'f' is a private member of 'test6::X<int>'}}
  };

  template class Y<int>; // expected-note {{in instantiation}}
}

// Dependently-scoped, right friend.
namespace test7 {
  template <class T> class Y;

  template <class T> class X {
    void f();
    friend class Y<int>;
  };

  template <class T> class Y {
    friend void X<T>::f();
  };

  template class Y<int>;
}