linkage2.cpp revision 013539cddae154cd1782984a7dc3bb471cac397e 
1// RUN: %clang_cc1 -fsyntax-only -verify %s
2
3namespace test1 {
4  int x; // expected-note {{previous definition is here}}
5  static int y; // expected-note {{previous definition is here}}
6  void f() {} // expected-note {{previous definition is here}}
7
8  extern "C" {
9    extern int x; // expected-error {{declaration of 'x' has a different language linkage}}
10    extern int y; // expected-error {{declaration of 'y' has a different language linkage}}
11    void f(); // expected-error {{declaration of 'f' has a different language linkage}}
12  }
13}
14
15extern "C" {
16  static void test2_f() { // expected-note {{previous definition is here}}
17  }
18  static void test2_f(int x) { // expected-error {{conflicting types for 'test2_f'}}
19  }
20}
21
22namespace test3 {
23  extern "C" {
24    namespace {
25      extern int x2;
26      void f2();
27    }
28  }
29  namespace {
30    int x2;
31    void f2() {}
32  }
33}
34
35namespace test4 {
36  void dummy() {
37    void Bar();
38    class A {
39      friend void Bar();
40    };
41  }
42}
43
44namespace test5 {
45  static void g();
46  void f()
47  {
48    void g();
49  }
50}
51
52// pr14898
53namespace test6 {
54  template <class _Rp>
55  class __attribute__ ((__visibility__("default"))) shared_future;
56  template <class _Rp>
57  class future {
58    template <class> friend class shared_future;
59    shared_future<_Rp> share();
60  };
61  template <class _Rp> future<_Rp>
62  get_future();
63  template <class _Rp>
64  struct shared_future<_Rp&> {
65    shared_future(future<_Rp&>&& __f); // expected-warning {{rvalue references are a C++11 extension}}
66  };
67  void f() {
68    typedef int T;
69    get_future<int>();
70    typedef int& U;
71    shared_future<int&> f1 = get_future<int&>();
72  }
73}
74