我想在C#中创建下面的结构,它是一个基于C的复杂结构,我尝试了大部分编组选项,但我总是得到'System。 TypeLoadException”。 (附加信息:无法从程序集'WindowsFormsApplication1,Version = 1.0.0.0,Culture = neutral,PublicKeyToken = null'加载'WindowsFormsApplication1.COMPLEX_STRUCT'类型,因为它包含不正确对齐的偏移8处的对象字段或通过非对象场重叠)结构不正确对齐:System.TypeLoadException
关于IPV6_ADDR结构,我都尝试LayoutKind.Explicit和LayoutKind.Sequential, 无一不:
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 16)]
public string Addr;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
public byte[] Addr;
我在x64机器上,但IPV6_ADDR结构被对齐到8个字节,所以我无法弄清楚是什么问题。
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct IPV4_ADDR
{
public uint Addr;
public uint SubnetNumBits;
};
[StructLayout(LayoutKind.Explicit, Pack = 1)]
public struct IPV6_ADDR
{
[FieldOffset(0)]
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 16)]
public string Addr;
[FieldOffset(16)]
public uint SubnetNumBits;
};
[StructLayout(LayoutKind.Explicit, Pack = 1)]
public struct COMPLEX_STRUCT
{
[FieldOffset(0)]
public byte A;
[FieldOffset(1)]
public byte B;
[FieldOffset(2)]
public byte C;
[FieldOffset(3)]
public byte D;
[FieldOffset(4)]
public byte E;
[FieldOffset(8)]
public IPV4_ADDR IPv4;
[FieldOffset(8)]
public IPV6_ADDR IPv6;
[FieldOffset(28)]
public ushort F;
}
原来的C结构我试图模仿:
typedef struct _IPV4_ADDR
{
uint32_t Addr;
uint32_t SubnetNumBits;
} IPV4_ADDR, *PIPV4_ADDR;
typedef struct _IPV6_ADDR
{
uint8_t Addr[16];
uint32_t SubnetNumBits;
} IPV6_ADDR, *PIPV6_ADDR;
typedef struct _COMPLEX_STRUCT
{
uint8_t A;
uint8_t B;
uint8_t C;
uint8_t D;
uint8_t E;
uint8_t Rsvd[3];
union {
IPV4_ADDR IPv4;
IPV6_ADDR IPv6;
} u;
uint16_t F;
} COMPLEX_STRUCT, *PCOMPLEX_STRUCT;
@TyCobb有。由于字符串是由.NET运行时管理的,因此不能覆盖具有字符串的结构,而该字符串不具有相同本地偏移量的字符串。 – 2014-10-06 23:20:25
OK Thx,我真的不介意从字符串切换到byte []/char [],但我也尝试过,并且仍然不好 – n00b 2014-10-07 05:24:54
我已经将原始结构添加到您的问题中。请删除你的答案。 – TyCobb 2014-10-07 15:08:03