mono/tests/generic-initobj.2.cs

   1 using System.Collections.Generic;
   2
   3 public class ClassA {};
   4 public class ClassB {};
   5
   6 public struct GenStruct<T> {
   7         public int field1;
   8         public T field2;
   9         public byte field3;
  10         public long field4;
  11 }
  12
  13 public class Gen<T> {
  14         public static T getDefault () {
  15                 return default (T);
  16         }
  17
  18         public static GenStruct<T> getDefaultStruct () {
  19                 return default (GenStruct<T>);
  20         }
  21 }
  22
  23 public class main {
  24         public static bool isDefaultStruct<T> (GenStruct<T> gs) {
  25                 EqualityComparer<T> eq = EqualityComparer<T>.Default;
  26
  27                 return gs.field1 == 0 && eq.Equals (gs.field2, default (T)) && gs.field3 == 0 && gs.field4 == 0;
  28         }
  29
  30         public static int Main () {
  31                 if (Gen<ClassA>.getDefault () != null)
  32                         return 1;
  33                 if (Gen<ClassB>.getDefault () != null)
  34                         return 1;
  35                 if (Gen<int>.getDefault () != 0)
  36                         return 1;
  37                 if (!isDefaultStruct<ClassA> (Gen<ClassA>.getDefaultStruct ()))
  38                         return 1;
  39                 if (!isDefaultStruct<ClassB> (Gen<ClassB>.getDefaultStruct ()))
  40                         return 1;
  41                 if (!isDefaultStruct<int> (Gen<int>.getDefaultStruct ()))
  42                         return 1;
  43                 return 0;
  44         }
  45 }