1 // CS0535: `CC' does not implement interface member `IA.this[int].set'
14 public abstract class CA
: IA
16 public abstract object this[int arg
] {
22 public partial class CB
: CA
24 public override object this[int arg
] {
26 throw new NotImplementedException ();
33 public class CC
: CB
, IA
35 public new object this[int arg
] {
37 throw new NotImplementedException ();