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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Runtime.InteropServices;
  5. using System.Text;
  6.  
  7. namespace Application
  8. {
  9.     class Program
  10.     {
  11.         [StructLayout(LayoutKind.Explicit)]
  12.         public struct Union
  13.         {
  14.             [FieldOffset(0)]
  15.             public int integer;
  16.  
  17.             [FieldOffset(0)]
  18.             public byte byte0;
  19.  
  20.             [FieldOffset(1)]
  21.             public byte byte1;
  22.  
  23.             [FieldOffset(2)]
  24.             public byte byte2;
  25.  
  26.             [FieldOffset(3)]
  27.             public byte byte3;
  28.  
  29.         }
  30.  
  31.         static void Main(string[] args)
  32.         {
  33.             Union a = new Union();
  34.             a.integer = 0x12345678;
  35.  
  36.             Console.WriteLine(string.Format("integer:{0}", a.integer.ToString("x")));
  37.             Console.WriteLine(string.Format("Byte:{0}{1}{2}{3}", a.byte0.ToString("x"), a.byte1.ToString("x"), a.byte2.ToString("x"), a.byte3.ToString("x")));
  38.         }
  39.     }
  40. }
  41.  
Success #stdin #stdout 0.03s 33896KB
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stdin
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Standard input is empty
stdout
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integer:12345678
Byte:78563412
https://ideone.com/phhk1S
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
public

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