头文件中的C ++运算符<<和>>方法，做错了

#pragma once

class ArrayIntStorage
{
public:
    void readFromFile();
    bool setReadSort(bool);
    void sortStd();
    void sortOwn();

    ArrayIntStorage(void);
    ~ArrayIntStorage(void);
};  

ostream& operator<< (ostream &out, const ArrayIntStorage &a);
istream& operator>> (istream &in, ArrayIntStorage &b);

    #include <ostream>
    #include <istream>

    std::ostream& operator<<(std::ostream& out,...)

ostream

istream

#include <istream>
#include <ostream>

istream

ostream

std

using namespace std;