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C# Coveriance



            class Car;
            class SportCar : Car;

            public delegate Car GetCarDelegate();

            public Car GetCar() {}
            public SportsCar GetSportsCar() {}

            /////////// These both are valid in .NET 2.0 +

             GetCarDelegate x = new  GetCarDelegate(GetCar);
             GetCarDelegate y = new  GetCarDelegate(GetSportsCar);
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