标准::字符串在C＃中？ [英] std::string in C#?

问题描述

我觉得这个问题是我的C ++函数里面，但我想这

I thought the problem is inside my C++ function,but I tried this

C ++函数在C ++中的dll：

C++ Function in C++ dll:

bool __declspec( dllexport ) OpenA(std::string file)
{
return true;
}

C＃code：

C# code:

[DllImport("pk2.dll")]
public static extern bool OpenA(string path);

    if (OpenA(@"E:\asdasd\"))

我得到一个异常的内存已损坏，为什么？

I get an exception that the memory is corrupt,why?

如果我删除的std ::字符串参数，它的伟大工程，但与标准::字符串它不工作。

If I remove the std::string parameter,it works great,but with std::string it doesnt work.

推荐答案

标准::字符串和C＃字符串不相互兼容。据我知道C＃字符串对应路过的char * 或 wchar_t的* 在C ++中尽可能互操作关注。

其中的一个原因，这是可以有许多不同的实现来为std :: string和C＃不能假设你使用任何特定的。

std::string and c# string are not compatible with each other. As far as I know the c# string corresponds to passing char* or wchar_t* in c++ as far as interop is concerned.
One of the reasons for this is that There can be many different implementations to std::string and c# can't assume that you're using any particular one.

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