mcs/tests/gtest-617.cs

   1 using System;
   2 using System.Collections.Generic;
   3
   4 class Program
   5 {
   6         static void Main()
   7         {
   8                 foreach (string x in new B ()) {
   9                 }
  10         }
  11 }
  12
  13 class A
  14 {
  15         public IEnumerator<string> GetEnumerator ()
  16         {
  17                 var s = new List<string>();
  18                 s.Add("1");
  19                 return s.GetEnumerator();
  20         }
  21 }
  22
  23 class B : A
  24 {
  25         public IEnumerator<int> GetEnumerator (int[] x = null)
  26         {
  27                 throw new NotImplementedException ();
  28         }
  29 }