1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
4
5 class C {
6 friend class D;
7 };
8
9 class A {
10 public:
11 void f();
12 };
13
14 friend int x; // expected-error {{'friend' used outside of class}}
15
16 friend class D {}; // expected-error {{'friend' used outside of class}}
17
18 union U {
19 int u1;
20 };
21
22 class B {
23 // 'A' here should refer to the declaration above.
24 friend class A;
25
26 friend C;
27 #if __cplusplus <= 199711L
28 // expected-warning@-2 {{unelaborated friend declaration is a C++11 extension; specify 'class' to befriend 'C'}}
29 #endif
30
31 friend U;
32 #if __cplusplus <= 199711L
33 // expected-warning@-2 {{unelaborated friend declaration is a C++11 extension; specify 'union' to befriend 'U'}}
34 #endif
35
36 friend int;
37 #if __cplusplus <= 199711L
38 // expected-warning@-2 {{non-class friend type 'int' is a C++11 extension}}
39 #endif
40
41 friend void myfunc();
42
f(A * a)43 void f(A *a) { a->f(); }
44 };
45
bar()46 inline void bar() {} // expected-note {{previous definition is here}}
47 class E {
bar()48 friend void bar() {} // expected-error {{redefinition of 'bar'}}
49 };
50
51
52
53
54 template <typename t1, typename t2> class some_template;
55 friend // expected-error {{'friend' used outside of class}}
56 some_template<foo, bar>& // expected-error {{use of undeclared identifier 'foo'}}
57 ; // expected-error {{expected unqualified-id}}
58