Listing 13-7 extracted from chapter Generics

Listing 13-6<     > Listing 13-8

This listing can be compiled with the command line:
csc.exe /target:library Example_13_7.cs
Errors: 0 Warnings: 0

interface ICustomInterface { int Fct(); }
class C<U> where U : ICustomInterface {
   public int AnotherFct(U u) { return u.Fct(); }
}