1 // CS0312: The type `E?' cannot be used as type parameter `T' in the generic type or method `C<System.Enum>.Foo<T>(T)'. The nullable type `E?' does not satisfy constraint `System.Enum'
10 static void Foo
<T
> (T
value) where T
: U
14 static void Test (E
? s
)
16 C
<System
.Enum
>.Foo (s
);