Решение всех задач из учебника Стивена Праты - C++ - Ответ 12888472

#pragma once
 
 
#include <iostream>
#include <stdlib.h>
 
 
class Cow
{
private:
    char name[20];
    char * hobby;
    double weigth;
public:
    Cow();
    Cow(const char * nm, const char * ho, double wt);
    Cow(const Cow& c);
    ~Cow();
 
    Cow & operator= (const Cow & c);
    void ShowCow() const;
};

#include "Cow.h"
 
Cow::Cow()
{
    name[0] = '\0';
    hobby = new char[1];
    hobby[0] = '\0';
    weigth = 0;
}
 
Cow::Cow(const char * nm, const char * ho, double wt)
{
    strncpy_s(name, nm, 20);
    hobby = new char[std::strlen(ho) + 1];
    strcpy_s(hobby, std::strlen(hobby), ho);
    weigth = wt;
}
 
Cow::Cow(const Cow& c)
{
    strncpy_s(name, c.name, 20);
    hobby = new char[std::strlen(c.hobby) + 1];
    strcpy_s(hobby, std::strlen(hobby), c.hobby);
    weigth = c.weigth;
}
 
Cow & Cow::operator= (const Cow & c)
{
    if (&c == this)
        return *this;
    delete[] hobby;
    
    strncpy_s(name, c.name, 20);
    hobby = new char[std::strlen(c.hobby) + 1];
    strcpy_s(hobby, std::strlen(c.hobby), c.hobby);
    weigth = c.weigth;
 
    return *this;
}
 
 
void Cow::ShowCow() const
{
    std::cout << "Name:   " << name   << std::endl;
    std::cout << "Hobby:  " << hobby  << std::endl;
    std::cout << "Weigth: " << weigth << std::endl;
    std::cout << std::endl;
}
 
 
Cow::~Cow()
{
    delete[] hobby;
}

#include <iostream>
#include <conio.h>
#include <stdlib.h>
#include "Cow.h"
 
using std::cout;
using std::cin;
using std::endl;
 
 
 
 
int main(int argc, char* argv[])
{
    Cow cow("Bob", "Eat", 89);
    Cow cow1 = cow;
    Cow cow2;
    Cow cow3("Joe", "Drink", 95);
 
    cow1.ShowCow();
    cow2.ShowCow();
    cow3.ShowCow();
    cout << "Copying cow in cow3" << endl;
    cow3 = cow;
    cow3.ShowCow();
 
 
 
    cout << "BYE" << endl;
    _getch();
    return 0;
}