productclassequals.cpp

来自「C++ sample code, for the book: C++ blac」· C++ 代码 · 共 49 行

#include <iostream>
#include <cstring>
using namespace std;

class product 
{     
    int number;        
public:         
    char *name;              
    int get_number(){return number;}
    void set_number(int n){number = n;}
    product();
    product(char *text, int count);
    product & operator=(product & second_product);
};

product::product(char *text, int count)
{
    name = new char[40];
    strcpy(name, text);
    number = count;
}

product::product()
{
    name = new char[40];
    number = 0;
}

product & product::operator=(product & second_product)
{
    strcpy(name, second_product.name);
    number = second_product.number;
    return *this;
}

int main()
{
    product oranges("oranges", 200), also_oranges;

    also_oranges = oranges;

    cout << "Number of " << also_oranges.name << ": " << also_oranges.get_number() << endl;

    return 0;
}