File: cxx-friend.cpp

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (57 lines) | stat: -rw-r--r-- 1,384 bytes parent folder | download | duplicates (31)
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
// RUN: %clang_cc1 -fsyntax-only -verify %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s

class C {
  friend class D;
};

class A {
public:
  void f();
};

friend int x; // expected-error {{'friend' used outside of class}}

friend class D {}; // expected-error {{'friend' used outside of class}}

union U {
  int u1;
};

class B {
  // 'A' here should refer to the declaration above.  
  friend class A;

  friend C;
#if __cplusplus <= 199711L
  // expected-warning@-2 {{unelaborated friend declaration is a C++11 extension; specify 'class' to befriend 'C'}}
#endif

  friend U;
#if __cplusplus <= 199711L
  // expected-warning@-2 {{unelaborated friend declaration is a C++11 extension; specify 'union' to befriend 'U'}}
#endif

  friend int;
#if __cplusplus <= 199711L
  // expected-warning@-2 {{non-class friend type 'int' is a C++11 extension}}
#endif

  friend void myfunc();

  void f(A *a) { a->f(); }
};

inline void bar() {} // expected-note {{previous definition is here}}
class E {
  friend void bar() {} // expected-error {{redefinition of 'bar'}}
};




template <typename t1, typename t2> class some_template;
friend   // expected-error {{'friend' used outside of class}}
some_template<foo, bar>&  // expected-error {{use of undeclared identifier 'foo'}}
  ;  // expected-error {{expected unqualified-id}}