--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp0x/scoped_enum.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,76 @@
+// { 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);
+}