mono/tests/pack-layout.cs

   1 using System;
   2 using System.Runtime.InteropServices;
   3
   4 [StructLayout ( LayoutKind.Sequential, Pack=2 )]
   5 struct MYStruct  {
   6         short a;
   7         int b;
   8 }
   9
  10 [StructLayout ( LayoutKind.Sequential, Pack=2 )]
  11 struct MYStruct2  {
  12         int b;
  13         short a;
  14 }
  15
  16 struct MYStruct3  {
  17         int b;
  18         short a;
  19 }
  20
  21 class Test {
  22         static int Main() {
  23                 int ms, ms2, ms3;
  24                 unsafe {
  25                         ms = sizeof (MYStruct);
  26                         ms2 = sizeof (MYStruct2);
  27                         ms3 = sizeof (MYStruct3);
  28                 }
  29                 Console.WriteLine ("MYStruct size: {0}", ms);
  30                 Console.WriteLine ("MYStruct2 size: {0}", ms2);
  31                 Console.WriteLine ("MYStruct3 size: {0}", ms3);
  32                 if (ms != 6)
  33                         return 1;
  34                 if (ms2 != 6)
  35                         return 2;
  36                 if (ms3 != 8)
  37                         return 3;
  38                 return 0;
  39         }
  40 }