Viewing file: scoped_enum.C (1.49 KB) -rw-r--r-- Select action/file-type: (+) | (+) | (+) | Code (+) | Session (+) | (+) | SDB (+) | (+) | (+) | (+) | (+) | (+) |
// { dg-do compile { target c++11 } } enum class Color1 { Red, Green, Blue };
enum struct Color2 { Red, // { dg-message "previously declared here" } Orange, Yellow, Green, Blue, Indigo = Green + 2, Violet, Red // { dg-error "redeclaration" } };
enum Color { Red, Green, Blue };
enum class Color3 { Red };
enum Color color; enum Color3 color3;
void f(int); void f2(Color3);
void g() { int i = 0; f(color); // okay: unscoped enum f(color3); // { dg-error "cannot convert" } f2(color); // { dg-error "cannot convert" } f2(color3); f2(i); // { dg-error "cannot convert" } i = color3; // { dg-error "cannot convert" } color3 = i; // { dg-error "cannot convert" } f(static_cast<int>(color3)); // okay
int a[5]; a[color3]; // { dg-error "array subscript is not an integer" }
bool b = color3; // { dg-error "cannot convert" } }
void h() { Color1 c1 = Color1::Red; Color2 c2 = Color1::Red; // { dg-error "cannot convert" } c2 = Color1::Red; // { dg-error "cannot convert" }
c2 = Color2::Red; int c3 = Color::Red; }
template<typename T, T value> struct constant { };
template<typename T> int& sfinae(constant<T, T::Green>*);
float& sfinae(void*);
void sfinae_test() { int& test1 = sfinae((constant<Color1, Color1::Green>*)0); int& test2 = sfinae((constant<Color2, Color2::Green>*)0); float& test3 = sfinae((constant<Color1, Color1::Red>*)0); int& test4 = sfinae((constant<Color, Green>*)0); float& test5 = sfinae((constant<Color, Red>*)0); }
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