7 public MyColor (int v)
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12 public static bool operator == (MyColor left, MyColor right)
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14 return left.v == right.v;
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17 public static bool operator != (MyColor left, MyColor right)
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19 return left.v != right.v;
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23 public class NullableColorTests
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25 public static int Main ()
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27 MyColor? col = null;
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28 bool b = col == new MyColor (3);
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29 Console.WriteLine (b);
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33 b = col != new MyColor (3);
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