65 lines
694 B
C#
65 lines
694 B
C#
using System;
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public struct CInt
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{
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int data;
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public CInt (int data)
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{
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this.data = data;
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}
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public static implicit operator CInt (int xx)
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{
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return new CInt (xx);
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}
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public static implicit operator int (CInt xx)
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{
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return xx.data;
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}
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}
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public class Klass
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{
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CInt? t;
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public Klass (CInt? t)
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{
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this.t = t;
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}
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public CInt? Value
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{
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get
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{
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return t;
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}
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}
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}
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public class MainClass
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{
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public static int Main ()
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{
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var v = new Klass (new CInt (3));
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if (v.Value == 1)
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return 1;
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if (v.Value != 3)
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return 2;
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if (v.Value == null)
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return 3;
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var v2 = new Klass (null);
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if (v2.Value != null)
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return 4;
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Console.WriteLine ("OK");
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return 0;
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}
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}
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