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C#
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// Type parameters with constraints: check whether we can invoke
// things on the constrained type.
using System;
interface I
{
void Hello ();
}
class J
{
public void Foo ()
{
Console.WriteLine ("Foo!");
}
}
class Stack<T>
where T : J, I
{
public void Test (T t)
{
t.Hello ();
t.Foo ();
}
}
class Test
{
}
class X
{
public static void Main()
{
}
}