Просмотр поста

написал прогу, вылетает после первых введённых данных

#include <iostream>
#include <stdio.h>
#include <string.h>
using namespace std;

class mainer {
public:

   struct _man {
       char name[200], city[70], street[100], num[12], pre[5];
   }Man;
struct _man *m;
mainer() {
    cout << "Please enter smth";
}
};

class city:public mainer {
public:
    city() {
        cout << endl << "Enter City: ";
        cin >> m->city;
    }
};

class name:public mainer {
public:
    name() {
        cout << endl << "Enter Name: ";
        cin >> m->name;
    }
};

class street:public mainer {
public:
    street() {
        cout << endl << "Enter Street: ";
        cin >> m->street;
        }
 };

class num:public mainer {
public:
    num() {
        cout << endl << "Enter Prefix and Number: ";
        cin >> m->pre >> m->num;
    }
};

class Book:public name, city, street, num {
};


int main() {
Book user;
return 0;
}