Из файла необходимо прочитать записи, установить ключи, позиции и количество записей

bool CMyFile :: open (const char* name)
{
    m_f.open (name, ios_base :: in | ios_base :: out | ios_base :: binary);
    if (!m_f)
        return false;
    m_name = new char [strlen(name)+1];
    strcpy_s(m_name, strlen(name)+1, name);
    setA ();
    return true;
}

CAuthor* CMyFile :: getRec (int index)
{
    long pos (m_a.getPos (index));
    m_f.seekg(pos, ios::beg);
    m_f >> m_r;
    return &m_r;
}

istream& operator >> (istream& in, CAuthor& obj)
{
    char buf1 [20];
    in >> buf1;
    char buf2 [20];
    in >> buf2;
    obj.setName (buf1);
    obj.setColor (buf2);
    in >> obj.m_weight;
    return in;
}

    char* name[7] = {"Apple", "Kiwi", "Lemon", "Grapes", "Lime", "Melon", "Orange"};
    char* color [7] = {"Red", "Brown", "Yellow", "Blue", "Green", "Yellow", "Orange"};
    int weight [7] = {250, 100, 250, 450, 200, 1000, 350};
    char filename [20];
    cout << "Enter file name -> ";
    cin >> filename;
    fstream myFile (filename, ios_base :: out | ios_base :: binary | ios_base :: trunc);
    if (!myFile)
        return 1;
    for (int i(0); i < 7; i++)
    {
        CFruit *fruit = new CFruit (name[i], color[i], weight [i]);
        myFile << *fruit;
        delete fruit;
    }
    myFile.close ();

ostream& operator << (ostream& out, const CAuthor& obj)
{
    out << obj.m_name << '\t';
    out << obj.m_color << '\t';
    out << obj.m_weight << '\t';
    return out;
}

#include "Fruit.h"
ostream& operator << (ostream& out, const CFruit& obj)
{
    out << obj.m_name << '\t';
    out << obj.m_color << '\t';
    out << obj.m_weight << '\t';
    return out;
}
istream& operator >> (istream& in, CFruit& obj)
{
    char buf1 [20];
    in >> buf1;
    char buf2 [20];
    in >> buf2;
    obj.setName (buf1);
    obj.setColor (buf2);
    in >> obj.m_weight;
    return in;
}
int main ()
{
    char* name[7] = {"Apple", "Kiwi", "Lemon", "Grapes", "Lime", "Melon", "Banana"};
    char* color [7] = {"Red", "Brown", "Yellow", "Blue", "Green", "Yellow", "Yellow"};
    int weight [7] = {250, 100, 250, 450, 200, 1000, 350};
    char filename [20];
    cout << "Enter file name -> ";
    cin >> filename;
    fstream myFile (filename, ios_base :: out | ios_base :: binary | ios_base :: trunc);
    if (!myFile)
        return 1;
    for (int i(0); i < 7; i++)
    {
        CFruit *fruit = new CFruit (name[i], color[i], weight [i]);
        myFile << *fruit;
        delete fruit;
    }
    myFile.close ();
    myFile.open (filename, ios_base :: binary | ios_base :: in);
    if (!myFile)
        return 1;
    while (!myFile.eof ())
    {
        CFruit *fruit = new CFruit();
        myFile >> *fruit;
        if (!myFile.eof ())
            cout << *fruit << endl;
        delete fruit;
    }
    myFile.close ();
    return 0;
}

#pragma once
#include "FileCard.h"
#include "Fruit.h"
#include <fstream>
class CMyFile
{
    fstream m_f;
    char* m_name;
    CFileCard& m_a;
    CFruit& m_r;
    void setA ();
public:
    CMyFile ();
    ~CMyFile();
    bool add (const char*, const char*, int);
    bool del (const char*);
    CFruit* find (const char*);
    int getN () const;
    CFruit* getRec (int);
    bool open (const char*);
    void save ();
    double averageWeight (const char* color);
};

#pragma once
#include <iostream>
using namespace std;
class CFruit
{
protected:
    char* m_name;
    char* m_color;
    int m_weight;
public:
    CFruit ();
    CFruit (const char*, const char*, int);
    CFruit (const CFruit&);
    virtual ~CFruit();
    void setName(const char*);
    void setColor(const char*);
    void setWeight(int);
    char* getName() const;
    char* getColor() const;
    int getWeight() const;
    bool checkKey (const char*);
    bool operator == (const char* color);
    friend ostream& operator << (ostream&, const CFruit&);
    friend istream& operator >> (istream&, CFruit&);
};

void CMenu :: view () const
{
 
    int n(m_ctrl -> getN());
    if (!n)
    {
        cout << "Objects not found" << endl;
        return;
    }
    CFruit* fruit;
    int i(0);
    while (i<n)
    {
        fruit = m_ctrl -> getRec (i);
        cout << *(fruit) << endl;;
        i++;
    }
}