nested-name-spec.cpp revision 011bb4edf731d529da1cbf71c7c2696aaf5a054f 
1// RUN: clang -fsyntax-only -verify %s
2namespace A {
3  struct C {
4    static int cx;
5  };
6  int ax;
7  void Af();
8}
9
10A:: ; // expected-error {{expected unqualified-id}}
11::A::ax::undef ex3; // expected-error {{expected a class or namespace}} expected-error {{expected '=', ',', ';', 'asm', or '__attribute__' after declarator}}
12A::undef1::undef2 ex4; // expected-error {{no member named 'undef1'}} expected-error {{expected '=', ',', ';', 'asm', or '__attribute__' after declarator}}
13
14class C2 {
15  void m();
16  int x;
17};
18
19void C2::m() {
20  x = 0;
21}
22
23namespace B {
24  void ::A::Af() {} // expected-error {{definition or redeclaration of 'Af' not in a namespace enclosing 'A'}}
25}
26
27void f1() {
28  void A::Af(); // expected-error {{definition or redeclaration of 'Af' not allowed inside a function}}
29}
30
31void f2() {
32  A:: ; // expected-error {{expected unqualified-id}}
33  A::C::undef = 0; // expected-error {{no member named 'undef'}}
34  ::A::C::cx = 0;
35  int x = ::A::ax = A::C::cx;
36  x = sizeof(A::C);
37  x = sizeof(::A::C::cx);
38}
39
40A::C c1;
41struct A::C c2;
42struct S : public A::C {};
43struct A::undef; // expected-error {{'undef' does not name a tag member in the specified scope}}
44
45namespace A2 {
46  typedef int INT;
47  struct RC;
48  struct CC {
49    struct NC;
50  };
51}
52
53struct A2::RC {
54  INT x;
55};
56
57struct A2::CC::NC {
58  void m() {}
59};
60
61void f3() {
62  N::x = 0; // expected-error {{use of undeclared identifier 'N'}}
63  int N;
64  N::x = 0; // expected-error {{expected a class or namespace}}
65  { int A;           A::ax = 0; }
66  { enum A {};       A::ax = 0; }
67  { enum A { A };    A::ax = 0; }
68  { typedef int A;   A::ax = 0; }
69  { typedef int A(); A::ax = 0; }
70  { typedef A::C A;  A::ax = 0; } // expected-error {{no member named 'ax'}}
71  { typedef A::C A;  A::cx = 0; }
72}
73
74// make sure the following doesn't hit any asserts
75void f4(undef::C); // expected-error {{use of undeclared identifier 'undef'}} // expected-error {{expected ')'}} expected-error {{to match this '('}} // expected-error {{variable has incomplete type 'void'}}
76