我想我必须创建一个托管C ++代码来包装本机C ++。但是我在尝试包装函数参数中使用的数组时遇到了问题,该数组的类型是在本机C ++中定义的。本机C ++代码如下:
//unmanageCPP.h
class __declspec(dllexport) unmanageMoney
{
public:
unmanageMoney(int a, int b) { rmb = a; dollar = b; }
unmanageMoney() { rmb = 0; dollar = 0; }
int rmb;
int dollar;
};
class __declspec(dllexport) unmanageSum
{
public:
//how to wrap this funciton?
int addDollar(unmanageMoney a[], unmanageMoney b[]);
};
//unmanageCPP.cpp
#include "unmanaged.h"
int unmanageSum::adddollar(unmanageMoney a[], unmanageMoney b[])
{
return a[0].dollar + b[0].dollar;
}
有谁能告诉我如何编写manageCPP.h?非常感谢!
更新
我将manageCPP.h编写如下,但我不知道如何编写addDollar()
//first, I wrap the class unmanageMoney for use in manageSum::addDollar()
public ref class manageMoney
{
private:
unmanageMoney* mMoney;
public:
unmanageMoney getMoney()
{
return *mMoney;
}
manageMoney(int a, int b) { mMoney = new unmanageMoney(a, b); }
~manageMoney() { delete mMoney; }
};
public ref class manageSum
{
// TODO: Add your methods for this class here.
private:
unmanageSum *mSum;
public:
manageSum()
{
mSum = new unmanageSum();
}
~manageSum()
{
delete mSum;
}
//it must be wrong if I code like this, for unmanageSun::adddollar() only
// receives unmanageMoney as arguments. So what should I do?
int adddollar(manageMoney a[], manageMoney b[])
{
return mSum->adddollar(a, b);
}
};
答案 0 :(得分:1)
使用
创建C ++ / CLI源文件public ref class SomethingOrOther
{
//...
};
并设置编译选项以使用/clr
选项。
除此之外,它与编写本机C ++几乎相同。您将#include
要重用的类的头文件,创建实例并调用其成员函数,与普通C ++相同。但是ref class
内的任何内容都将对C#可见。
你不要把__declspec(dllexport)
放在课堂上。永远不会。它对函数很有用,但在与类一起使用时会产生痛苦。