1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 typedef int INT;
3 typedef INT REALLY_INT; // expected-note {{previous definition is here}}
4 typedef REALLY_INT REALLY_REALLY_INT;
5 typedef REALLY_INT BOB;
6 typedef float REALLY_INT; // expected-error{{typedef redefinition with different types ('float' vs 'INT' (aka 'int'))}}
7 
8 struct X {
9   typedef int result_type; // expected-note {{previous definition is here}}
10   typedef INT result_type; // expected-error {{redefinition of 'result_type'}}
11 };
12 
13 struct Y; // expected-note{{previous definition is here}}
14 typedef int Y;  // expected-error{{typedef redefinition with different types ('int' vs 'Y')}}
15 
16 typedef int Y2; // expected-note{{declared here}}
17 struct Y2; // expected-error{{definition of type 'Y2' conflicts with typedef of the same name}}
18 
19 void f(); // expected-note{{previous definition is here}}
20 typedef int f; // expected-error{{redefinition of 'f' as different kind of symbol}}
21 
22 typedef int f2; // expected-note{{previous definition is here}}
23 void f2(); // expected-error{{redefinition of 'f2' as different kind of symbol}}
24 
25 typedef struct s s;
26 typedef int I;
27 typedef int I;
28 typedef I I;
29 
30 struct s { };
31 
32 // PR5874
33 namespace test1 {
34   typedef int foo;
35   namespace a { using test1::foo; };
36   typedef int foo;
37   using namespace a;
38   foo x;
39 }
40 
41 namespace PR6923 {
42   struct A;
43 
44   extern "C" {
45     struct A;
46     typedef struct A A;
47   }
48 
49   struct A;
50 }
51 
52 namespace PR7462 {
53   struct A {};
54   typedef int operator! (A); // expected-error{{typedef name must be an identifier}}
55   int i = !A(); // expected-error{{invalid argument type}}
56 }
57 
58 template<typename T>
59 typedef T f(T t) { return t; } // expected-error {{function definition declared 'typedef'}}
60 int k = f(0);
61 int k2 = k;
62 
63 namespace PR11630 {
64   template <class T>
65   struct S
66   {
67     static const unsigned C = 1;
fPR11630::S68     static void f()
69     {
70       typedef int q[C == 1 ? 1 : -1]; // expected-note{{previous definition is here}}
71       typedef int q[C >= 1 ? 2 : -2]; // expected-error{{typedef redefinition with different types ('int [2]' vs 'int [1]')}}
72       typedef int n[C == 1 ? 1 : -1];
73       typedef int n[C >= 1 ? 1 : -1];
74     }
75   };
76 
77   template <int T>
78   struct S2
79   {
fPR11630::S280     static void f()
81     {
82       typedef int q[1];  // expected-note{{previous definition is here}}
83       typedef int q[T];  // expected-error{{typedef redefinition with different types ('int [2]' vs 'int [1]')}}
84     }
85   };
86 
f()87   void f() {
88     S<int> a;
89     a.f(); // expected-note{{in instantiation of member function 'PR11630::S<int>::f' requested here}}
90     S2<1> b;
91     b.f();
92     S2<2> b2;
93     b2.f(); // expected-note{{in instantiation of member function 'PR11630::S2<2>::f' requested here}}
94   }
95 }
96