1 // RUN: %clang_cc1 -verify -fsyntax-only -Wsign-conversion %s
2 
3 // NOTE: When a 'enumeral mismatch' warning is implemented then expect several
4 // of the following cases to be impacted.
5 
6 // namespace for anonymous enums tests
7 namespace test1 {
8   enum { A };
9   enum { B = -1 };
10 
11   template <typename T> struct Foo {
12     enum { C };
13     enum { D = ~0U };
14   };
15 
16   enum { E = ~0U };
17 
doit_anonymous(int i)18   void doit_anonymous( int i ) {
19     int a1 = 1 ? i : A;
20     int a2 = 1 ? A : i;
21 
22     int b1 = 1 ? i : B;
23     int b2 = 1 ? B : i;
24 
25     int c1 = 1 ? i : Foo<bool>::C;
26     int c2 = 1 ? Foo<bool>::C : i;
27 
28     int d1a = 1 ? i : Foo<bool>::D; // expected-warning {{test1::Foo<bool>::(anonymous enum at }}
29     int d1b = 1 ? i : Foo<bool>::D; // expected-warning {{warn-sign-conversion.cpp:13:5)' to 'int'}}
30     int d2a = 1 ? Foo<bool>::D : i; // expected-warning {{operand of ? changes signedness: 'test1::Foo<bool>::(anonymous enum at }}
31     int d2b = 1 ? Foo<bool>::D : i; // expected-warning {{warn-sign-conversion.cpp:13:5)' to 'int'}}
32     int d3a = 1 ? B : Foo<bool>::D; // expected-warning {{operand of ? changes signedness: 'test1::Foo<bool>::(anonymous enum at }}
33     int d3b = 1 ? B : Foo<bool>::D; // expected-warning {{warn-sign-conversion.cpp:13:5)' to 'int'}}
34     int d4a = 1 ? Foo<bool>::D : B; // expected-warning {{operand of ? changes signedness: 'test1::Foo<bool>::(anonymous enum at }}
35     int d4b = 1 ? Foo<bool>::D : B; // expected-warning {{warn-sign-conversion.cpp:13:5)' to 'int'}}
36 
37     int e1a = 1 ? i : E; // expected-warning {{operand of ? changes signedness: 'test1::(anonymous enum at }}
38     int e1b = 1 ? i : E; // expected-warning {{warn-sign-conversion.cpp:16:3)' to 'int'}}
39     int e2a = 1 ? E : i; // expected-warning {{operand of ? changes signedness: 'test1::(anonymous enum at }}
40     int e2b = 1 ? E : i; // expected-warning {{warn-sign-conversion.cpp:16:3)' to 'int'}}
41     int e3a = 1 ? E : B; // expected-warning {{operand of ? changes signedness: 'test1::(anonymous enum at }}
42     int e3b = 1 ? E : B; // expected-warning {{warn-sign-conversion.cpp:16:3)' to 'int'}}
43     int e4a = 1 ? B : E; // expected-warning {{operand of ? changes signedness: 'test1::(anonymous enum at }}
44     int e4b = 1 ? B : E; // expected-warning {{warn-sign-conversion.cpp:16:3)' to 'int'}}
45   }
46 }
47 
48 // namespace for named enums tests
49 namespace test2 {
50   enum Named1 { A };
51   enum Named2 { B = -1 };
52 
53   template <typename T> struct Foo {
54     enum Named3 { C };
55     enum Named4 { D = ~0U };
56   };
57 
58   enum Named5 { E = ~0U };
59 
doit_anonymous(int i)60   void doit_anonymous( int i ) {
61     int a1 = 1 ? i : A;
62     int a2 = 1 ? A : i;
63 
64     int b1 = 1 ? i : B;
65     int b2 = 1 ? B : i;
66 
67     int c1 = 1 ? i : Foo<bool>::C;
68     int c2 = 1 ? Foo<bool>::C : i;
69 
70     int d1 = 1 ? i : Foo<bool>::D; // expected-warning {{operand of ? changes signedness: 'test2::Foo<bool>::Named4' to 'int'}}
71     int d2 = 1 ? Foo<bool>::D : i; // expected-warning {{operand of ? changes signedness: 'test2::Foo<bool>::Named4' to 'int'}}
72     int d3 = 1 ? B : Foo<bool>::D; // expected-warning {{operand of ? changes signedness: 'test2::Foo<bool>::Named4' to 'int'}}
73     int d4 = 1 ? Foo<bool>::D : B; // expected-warning {{operand of ? changes signedness: 'test2::Foo<bool>::Named4' to 'int'}}
74 
75     int e1 = 1 ? i : E; // expected-warning {{operand of ? changes signedness: 'test2::Named5' to 'int'}}
76     int e2 = 1 ? E : i; // expected-warning {{operand of ? changes signedness: 'test2::Named5' to 'int'}}
77     int e3 = 1 ? E : B; // expected-warning {{operand of ? changes signedness: 'test2::Named5' to 'int'}}
78     int e4 = 1 ? B : E; // expected-warning {{operand of ? changes signedness: 'test2::Named5' to 'int'}}
79   }
80 }
81