如何让 main 成为我班上的朋友？
我认为这是可能的，但编译器抱怨它无法访问我的类的受保护/私有成员。我尝试过移动东西并更改签名，但找不到有效的组合。
我基本上有：
class MyClass
{
public:
friend int main(int argc, char** argv);
private:
void test()
{
cout << "My friend has accessed my member" << endl;
}
};
int main(int argc, char** argv)
{
MyClass mc;
mc.test();
}
I'm thinking this is possible, but the compiler is complaining it cannot access the protected/private members of my class. I've tried moving stuff around and changing signatures, but can't find a combination that works.
I essentially have:
class MyClass
{
public:
friend int main(int argc, char** argv);
private:
void test()
{
cout << "My friend has accessed my member" << endl;
}
};
int main(int argc, char** argv)
{
MyClass mc;
mc.test();
}
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评论（2）
你所拥有的是正确的。
适用于 GCC 4.3.4
What you have is correct.
Works in GCC 4.3.4
您可能不应该在这里做您想做的事情——当然有更好的方法。话虽这么说，您可以尝试在全局命名空间
friend int ::main中声明友元函数（请注意范围解析运算符::的使用）。You probably shouldn't do what you're trying to do here -- there is certainly a better way. That being said, you could try declaring the friend function in the global namespace,
friend int ::main(note the use of the scope resolution operator::).