1 // { dg-do compile { target c++11 } }
2 enum class Color1 {
3 Red,
4 Green,
5 Blue
6 };
7
8 enum struct Color2 {
9 Red, // { dg-message "previously declared here" }
10 Orange,
11 Yellow,
12 Green,
13 Blue,
14 Indigo = Green + 2,
15 Violet,
16 Red // { dg-error "redeclaration" }
17 };
18
19 enum Color {
20 Red, Green, Blue
21 };
22
23 enum class Color3 {
24 Red
25 };
26
27 enum Color color;
28 enum Color3 color3;
29
30 void f(int);
31 void f2(Color3);
32
g()33 void g()
34 {
35 int i = 0;
36 f(color); // okay: unscoped enum
37 f(color3); // { dg-error "cannot convert" }
38 f2(color); // { dg-error "cannot convert" }
39 f2(color3);
40 f2(i); // { dg-error "cannot convert" }
41 i = color3; // { dg-error "cannot convert" }
42 color3 = i; // { dg-error "cannot convert" }
43 f(static_cast<int>(color3)); // okay
44
45 int a[5];
46 a[color3]; // { dg-error "array subscript is not an integer" }
47
48 bool b = color3; // { dg-error "cannot convert" }
49 }
50
h()51 void h()
52 {
53 Color1 c1 = Color1::Red;
54 Color2 c2 = Color1::Red; // { dg-error "cannot convert" }
55 c2 = Color1::Red; // { dg-error "cannot convert" }
56
57 c2 = Color2::Red;
58 int c3 = Color::Red;
59 }
60
61 template<typename T, T value>
62 struct constant { };
63
64 template<typename T>
65 int& sfinae(constant<T, T::Green>*);
66
67 float& sfinae(void*);
68
sfinae_test()69 void sfinae_test()
70 {
71 int& test1 = sfinae((constant<Color1, Color1::Green>*)0);
72 int& test2 = sfinae((constant<Color2, Color2::Green>*)0);
73 float& test3 = sfinae((constant<Color1, Color1::Red>*)0);
74 int& test4 = sfinae((constant<Color, Green>*)0);
75 float& test5 = sfinae((constant<Color, Red>*)0);
76 }
77