How to check if T from IEnumerable<T> is IInterface?
c#, generics, interface, typechecking, types
Solution
This will work in C# 4, but not in prior versions.
The `is` statement takes advantage of covariance for generic type parameters, a feature added in C# 4. Prior to C# 4, the statement would be false.
Problem
Basically, what would be the equivalent of this but is 100% guaranteed to work? ``` object x = new List<MyTypeWhichImplementsIInterface>(); bool shouldBeTrue = x is IEnumerable<IInterface>; ``` From some rough testing it seems to work, but I'm not sure.