mcs/tests/gtest-242.cs

   1 // #77358
   2 using System;
   3
   4 public class Container<T>
   5         where T : IComparable<T>
   6 {
   7 }
   8
   9 public class ReferenceType : IComparable<ReferenceType>
  10 {
  11         public int value;
  12
  13         public int CompareTo (ReferenceType obj)
  14         {
  15                 return 0;
  16         }
  17 };
  18
  19 public struct MyValueType : IComparable<MyValueType>
  20 {
  21         public int value;
  22
  23         public int CompareTo (MyValueType obj)
  24         {
  25                 return 0;
  26         }
  27 };
  28
  29 public class Test
  30 {
  31         public static void Main ()
  32         {
  33                 // Compilation succeeds, constraint satisfied
  34                 new Container<ReferenceType> ();
  35
  36                 // Compilation fails, constraint not satisfied according to mcs,
  37                 // the unmodified testcase compiles successfully with csc
  38                 new Container<MyValueType> ();
  39         }
  40 };