81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
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// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
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template<typename T>
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class X0 {
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friend T;
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};
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class Y1 { };
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enum E1 { };
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X0<Y1> x0a;
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X0<Y1 *> x0b;
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X0<int> x0c;
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X0<E1> x0d;
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template<typename T>
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class X1 {
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friend typename T::type; // expected-error{{no type named 'type' in 'Y1'}}
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};
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struct Y2 {
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struct type { };
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};
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struct Y3 {
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typedef int type;
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};
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X1<Y2> x1a;
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X1<Y3> x1b;
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X1<Y1> x1c; // expected-note{{in instantiation of template class 'X1<Y1>' requested here}}
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template<typename T> class B;
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template<typename T>
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class A {
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T x;
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public:
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class foo {};
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static int y;
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template <typename S> friend class B<S>::ty; // expected-warning {{dependent nested name specifier 'B<S>::' for friend class declaration is not supported}}
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};
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template<typename T> class B { typedef int ty; };
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template<> class B<int> {
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class ty {
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static int f(A<int> &a) { return a.y; } // ok, befriended
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};
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};
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int f(A<char> &a) { return a.y; } // FIXME: should be an error
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struct {
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// Ill-formed
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int friend; // expected-error {{'friend' must appear first in a non-function declaration}}
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unsigned friend int; // expected-error {{'friend' must appear first in a non-function declaration}}
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const volatile friend int; // expected-error {{'friend' must appear first in a non-function declaration}} \
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// expected-error {{'const' is invalid in friend declarations}} \
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// expected-error {{'volatile' is invalid in friend declarations}}
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int
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friend; // expected-error {{'friend' must appear first in a non-function declaration}}
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friend const int; // expected-error {{'const' is invalid in friend declarations}}
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friend volatile int; // expected-error {{'volatile' is invalid in friend declarations}}
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template <typename T> friend const class X; // expected-error {{'const' is invalid in friend declarations}}
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// C++ doesn't have restrict and _Atomic, but they're both the same sort
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// of qualifier.
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typedef int *PtrToInt;
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friend __restrict PtrToInt; // expected-error {{'restrict' is invalid in friend declarations}} \
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// expected-error {{restrict requires a pointer or reference}}
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friend _Atomic int; // expected-error {{'_Atomic' is invalid in friend declarations}}
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// OK
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int friend foo(void);
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const int friend foo2(void);
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friend int;
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friend
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float;
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template<typename T> friend class A<T>::foo; // expected-warning {{not supported}}
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} a;
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void testA() { (void)sizeof(A<int>); }
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