问题：
vc6
c++ 重载 << 时遇到 “ cannot access private member declared in class ‘test’”
代码如下：
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#include <iostream> using namespace std; class test{ private: int i; float f; char ch; ; public: test(int a=0,float b=0,char c='\0'){i=a;f=b;ch=c;} friend ostream &operator<<(ostream &os,const test &c); }; ostream &operator<<(ostream &os,const test &c){ os<<c.i; return os; } void main(){ test t; cout<< t; } |
解决：
把
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ostream &operator<<(ostream &os,const test &c) |
移动到 class 里边
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friend ostream &operator<<(ostream &os,const test &c){ os<<c.i; return os; } |
参考：
http://bbs.csdn.net/topics/390151210