I have the following function written in C#
public static string GetNominativeDeclension(string surnameNamePatronimic)
{
if(surnameNamePatronimic == null)
throw new ArgumentNullException("surnameNamePatronimic");
IntPtr[] ptrs = null;
try
{
ptrs = StringsToIntPtrArray(surnameNamePatronimic);
int resultLen = MaxResultBufSize;
int err = decGetNominativePadeg(ptrs[0], ptrs[1], ref resultLen);
ThrowException(err);
return IntPtrToString(ptrs, resultLen);
}
catch
{
return surnameNamePatronimic;
}
finally
{
FreeIntPtr(ptrs);
}
}
Function decGetNominativePadeg is in unmanaged dll
[DllImport("Padeg.dll", EntryPoint = "GetNominativePadeg")]
private static extern Int32 decGetNominativePadeg(IntPtr surnameNamePatronimic,
IntPtr result, ref Int32 resultLength);
并且抛出异常:尝试读取或写入受保护的内存。这通常表明其他内存已经损坏
。
在C#代码中的catch实际上并不能捕获它。为什么?如何处理这个异常?
感谢您的帮助!