1 // CS0462: `B.this[int]' cannot override inherited members `A<T>.this[int]' and `A<T>.this[T]' because they have the same signature when used in type `B'
6 public abstract int this[T t
] { set; }
7 public virtual bool this [int a
] { set { }
}
12 public override int this [int a
] { set {}
}