mcs/errors/gcs1640.cs

   1 // CS1640: foreach statement cannot operate on variables of type `T' because it contains multiple implementation of `System.Collections.Generic.IEnumerable<T>.GetEnumerator()'. Try casting to a specific implementation
   2 // Line: 11
   3
   4 using System.Collections.Generic;
   5
   6 public class C
   7 {
   8         public static void Test<T>(T t)
   9                 where T: IEnumerable<string>, IEnumerable<int>
  10         {
  11                 foreach (int i in t)
  12                 {
  13                 }
  14         }
  15 }