mono/tests/interlocked-4.2.cs

   1 using System;
   2 using System.Threading;
   3 public class DifferentialOperator
   4 {
   5         static void Main (string[] args)
   6         {
   7                 WeakReference weakref = null;
   8                 Swap (ref weakref, new object ());
   9                 if (weakref == null)
  10                         throw new Exception ();
  11         }
  12
  13         static void Swap(ref WeakReference refNmsp, object o)
  14         {
  15                 WeakReference wref = refNmsp;
  16                 if (wref != null)
  17                 {
  18                         Console.WriteLine ("Need this to make it pass");
  19                 }
  20                 Interlocked.CompareExchange<WeakReference>(ref refNmsp, new WeakReference(o), wref);
  21         }
  22 }