c++结构体翻译为c#结构体

文章转自：http://social.msdn.microsoft.com/Forums/zh-CN/visualcshartzhchs/thread/8b050320-37b7-4bbf-90b6-b966eb48af24

 c++原结构体如下 ：

typedef     struct {                  /* CAN_MSG                      */
    union {
        UINT8    id[4];
        UINT32    identifier;
    };
    union {
        struct {
            UINT8    length    :4;     /* data length                  */
            UINT8    resbit    :2;
            UINT8    remote    :1;     /* remote transmission request  */
            UINT8    format    :1;     /* frame format                 */
        };
        UINT8    info;
    };
    UINT8    reserve[3];
    UINT8    data[8];                  /* data field                   */
} CAN_MSG;

C#对应如下：

 

using System.Runtime.InteropServices;

public class CAN_MSG // CAN_MSG
{
//Unions are not supported in C#, but the following union can be simulated with the StructLayout and FieldOffset attributes.
//ORIGINAL LINE: union
//Structs must be named in C#, so the following struct has been named AnonymousStruct:
      [StructLayout(LayoutKind.Explicit)]
      public struct AnonymousStruct
      {
            [FieldOffset(0)]
            public byte[] id = new byte[4];
            [FieldOffset(0)]
            public uint identifier;
      }
//Unions are not supported in C#.
//ORIGINAL LINE: union
//Structs must be named in C#, so the following struct has been named AnonymousStruct2:
      public struct AnonymousStruct2
      {
//Classes must be named in C#, so the following class has been named AnonymousClass:
            public class AnonymousClass
            {
//C# does not allow bit fields:
                  public byte length :4; // data length
                  public byte resbit :2;
                  public byte remote :1; // remote transmission request
                  public byte format :1; // frame format
            }
            public byte info;
      }
      public byte[] reserve = new byte[3];
      public byte[] data = new byte[8]; // data field
}