118 lines
2.6 KiB
C++
118 lines
2.6 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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// C++98 [class.friend]p7:
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// C++11 [class.friend]p9:
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// A name nominated by a friend declaration shall be accessible in
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// the scope of the class containing the friend declaration.
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// PR12328
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// Simple, non-templated case.
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namespace test0 {
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class X {
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void f(); // expected-note {{implicitly declared private here}}
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};
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class Y {
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friend void X::f(); // expected-error {{friend function 'f' is a private member of 'test0::X'}}
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};
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}
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// Templated but non-dependent.
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namespace test1 {
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class X {
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void f(); // expected-note {{implicitly declared private here}}
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};
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template <class T> class Y {
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friend void X::f(); // expected-error {{friend function 'f' is a private member of 'test1::X'}}
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};
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}
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// Dependent but instantiated at the right type.
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namespace test2 {
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template <class T> class Y;
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class X {
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void f();
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friend class Y<int>;
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};
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template <class T> class Y {
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friend void X::f();
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};
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template class Y<int>;
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}
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// Dependent and instantiated at the wrong type.
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namespace test3 {
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template <class T> class Y;
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class X {
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void f(); // expected-note {{implicitly declared private here}}
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friend class Y<int>;
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};
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template <class T> class Y {
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friend void X::f(); // expected-error {{friend function 'f' is a private member of 'test3::X'}}
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};
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template class Y<float>; // expected-note {{in instantiation}}
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}
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// Dependent because dependently-scoped.
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namespace test4 {
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template <class T> class X {
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void f();
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};
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template <class T> class Y {
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friend void X<T>::f();
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};
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}
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// Dependently-scoped, no friends.
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namespace test5 {
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template <class T> class X {
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void f(); // expected-note {{implicitly declared private here}}
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};
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template <class T> class Y {
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friend void X<T>::f(); // expected-error {{friend function 'f' is a private member of 'test5::X<int>'}}
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};
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template class Y<int>; // expected-note {{in instantiation}}
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}
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// Dependently-scoped, wrong friend.
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namespace test6 {
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template <class T> class Y;
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template <class T> class X {
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void f(); // expected-note {{implicitly declared private here}}
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friend class Y<float>;
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};
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template <class T> class Y {
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friend void X<T>::f(); // expected-error {{friend function 'f' is a private member of 'test6::X<int>'}}
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};
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template class Y<int>; // expected-note {{in instantiation}}
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}
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// Dependently-scoped, right friend.
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namespace test7 {
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template <class T> class Y;
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template <class T> class X {
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void f();
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friend class Y<int>;
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};
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template <class T> class Y {
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friend void X<T>::f();
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};
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template class Y<int>;
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}
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