CODE EXAMPLE FOR CPP

C++ copy constructor

// Example: Explicit copy constructor
  
#include<iostream>
using namespace std;
  
class Sample
{
    int id;
    public:
    void init(int x)
    {
        id=x;    
    }    
    Sample(){}  //default constructor with empty body
      
    Sample(Sample &t)   //copy constructor
    {
        id=t.id;
    }
    void display()
    {
        cout<<endl<<"ID="<<id;
    }
};
int main()
{
    Sample obj1;
    obj1.init(10);
    obj1.display();
      
    Sample obj2(obj1); //or obj2=obj1;    copy constructor called
    obj2.display();
    return 0;
}