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  1. using System;
  2. using System.Collections;
  3. using System.Collections.Generic;
  4. using System.Runtime.InteropServices;
  5. using System.Text;
  6. using Microsoft.CSharp;
  7.  
  8. namespace tpcs
  9. {
  10. class MainClass
  11. {
  12.     internal interface IChangeBoxedPoint
  13.     {
  14.         void Change(Int32 x, Int32 y);
  15.     }
  16.     internal struct Point: IChangeBoxedPoint
  17.     {
  18.         private Int32 m_x, m_y;
  19.  
  20.         public Point(Int32 x, Int32 y)
  21.         {
  22.             this.m_x = x;
  23.             this.m_y = y;
  24.         }
  25.  
  26.         public void Change(Int32 x, Int32 y)
  27.         {
  28.             this.m_x = x;
  29.             this.m_y = y;
  30.         }
  31.  
  32.         public override string ToString()
  33.         {
  34.             return string.Format("({0}, {1})", this.m_x.ToString(), this.m_y.ToString());
  35.         }
  36.     }
  37.  
  38.     public static void Main(string[] args)
  39.     {
  40.         Console.WriteLine("Point p = new Point(1, 1); ");
  41.         Point p = new Point(1, 1);
  42.         Console.WriteLine("p: {0}, o: {1}" , p, "------");
  43.  
  44.         Console.WriteLine("p.Change(2, 2); ");
  45.         p.Change(2, 2);
  46.         Console.WriteLine("p: {0}, o: {1}" , p, "------");
  47.  
  48.         Console.WriteLine("Object o = p; ");
  49.         Object o = p;
  50.         Console.WriteLine("p: {0}, o: {1}" , p, o);
  51.  
  52.         Console.WriteLine("((Point)o).Change(3, 3); ");
  53.         ((Point)o).Change(3, 3);
  54.         Console.WriteLine("p: {0}, o: {1}" , p, o);
  55.  
  56.         Console.WriteLine("((IChangeBoxedPoint)p).Change(4, 4); ");
  57.         ((IChangeBoxedPoint)p).Change(4, 4);
  58.         Console.WriteLine("p: {0}, o: {1}" , p, o);
  59.  
  60.         Console.WriteLine("((IChangeBoxedPoint)o).Change(5, 5); ");
  61.         ((IChangeBoxedPoint)o).Change(5, 5);
  62.         Console.WriteLine("p: {0}, o: {1}" , p, o);
  63.     }
  64. }
  65. }
  66.  
Success #stdin #stdout 0.03s 24200KB
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stdin
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Standard input is empty
stdout
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Point p = new Point(1, 1); 
p: (1, 1), o: ------
p.Change(2, 2); 
p: (2, 2), o: ------
Object o = p; 
p: (2, 2), o: (2, 2)
((Point)o).Change(3, 3); 
p: (2, 2), o: (2, 2)
((IChangeBoxedPoint)p).Change(4, 4); 
p: (2, 2), o: (2, 2)
((IChangeBoxedPoint)o).Change(5, 5); 
p: (2, 2), o: (5, 5)
https://ideone.com/pYTEBC
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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