errors/gcs1502-2.cs

   1 // CS1502: The best overloaded method match for `A.A(System.Collections.Generic.IList<System.Collections.Generic.IList<int>>)' has some invalid arguments
   2 // Line: 40
   3 using System;
   4 using System.Collections;
   5 using System.Collections.Generic;
   6
   7 public struct MyStruct : IList<int>
   8 {
   9         public int this [int x] { get { return 0; } set { return; } }
  10         public int IndexOf (int x) { return 0; }
  11         public void Insert (int x, int y) { return; }
  12         public void RemoveAt (int x) { return; }
  13         public int Count { get { return 0; } }
  14         public bool IsReadOnly { get { return false; } }
  15         public void Add (int x) { return; }
  16         public void Clear () { return; }
  17         public bool Contains (int x) { return false; }
  18         public void CopyTo (int[] x, int y) { return; }
  19         public bool Remove (int x) { return false; }
  20         public IEnumerator<int> GetEnumerator() { yield return 0; }
  21         IEnumerator IEnumerable.GetEnumerator() { yield return 0; }
  22 }
  23
  24 public class A
  25 {
  26         // This version does not compile:
  27         public A(IList<int>[] x) { }
  28
  29         // This version compiles fine, but results in an exception:
  30         public A(IList<IList<int>> x) { }
  31 }
  32
  33 public class Test
  34 {
  35         static void Main ()
  36         {
  37                 MyStruct[] myStructArray = new MyStruct[1];
  38
  39                 Console.WriteLine ("Trying to construct an A...");
  40                 A a = new A (myStructArray);
  41                 Console.WriteLine ("success!");
  42         }
  43 }