C++中含有union的stuct，如何在C#中定义

[boblaw]

typedef struct tagMarket {					
	union {
		WORD			m_wMarket;			
		char			m_EShortName[3];	
	};
	char			m_Name[16];				
	char			m_CShortName[5];		
	unsigned long	m_lProperty;			
	unsigned long	m_lDate;				
	short			m_PeriodCount;			
	short			m_OpenTime[5];			
	short			m_CloseTime[5];			
	short			m_nCount;				
	StockInfo       m_Siif[1];   
} SCMarket;

请教，有如上一个C++中的Struct，包含一个union，如何在C#中定义？

[bdmh]

http://www.cnblogs.com/dc10101/archive/2009/03/09/1406801.html

[boblaw]

我问的是struct中包含union，如何定义

[hnfeitianwugui]

C#有union吗？

[足球中国]

struct union
{
int m_wMarket;
[(3)]
byte[] m_EShortName;
}

当成struct 理论上应该是可以的。
用指针直接用byte然后再自己组装应该也可以。

[x8bits]

想这样...

[System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Explicit)]
public struct MyUnion
{
    [System.Runtime.InteropServices.FieldOffsetAttribute(0)]
    public ushort m_wMarket;
    [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst=3, ArraySubType=System.Runtime.InteropServices.UnmanagedType.I1)]
    [System.Runtime.InteropServices.FieldOffsetAttribute(0)]
    public byte[] m_EShortName;
}

[lizhibin11]

    unsafe struct tagMarket
    {
        public fixed sbyte m_EShortName[4];//这个字段代替union
        public fixed sbyte m_Name[16];
        public fixed sbyte m_CShortName[5];
        public uint m_lProperty;
        public uint m_lDate;
        public short m_PeriodCount;
        public fixed short m_OpenTime[5];
        public fixed short m_CloseTime[5];
        public short m_nCount;
        public StockInfo m_Siif[1]; 
        //下面的方法代替m_wMarket读写
        public void writemarket(ushort market)
        {
            //////
        }
        public ushort getmarket()
        {
            ///////
        }
    }

估计得写成这个样子，m_EShortName定义四个字节才能保证对齐。