Using the copy constructor - C++ Class

C++ examples for Class:Constructor

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Description

Using the copy constructor

Demo Code

#include <string>
#include <cstdio>
#include <cstdlib>
#include <iostream>
using namespace std;

class Employee {/* w  w w .j a v a  2 s . c  o  m*/
public:
  Employee(const char *pName = "no name", int ssId = 0) : name(pName), id(ssId)
  {
    cout << "Constructed " << name << endl;
  }

  Employee(const Employee& s) : name("Copy of " + s.name), id(s.id)
  {
    cout << "Constructed " << name << endl;
  }

  ~Employee() {
    cout << "Destructing " << name << endl;
  }

protected:
  string name;
  int  id;
};

void fn(Employee copy) {
  cout << "In function fn()" << endl;
}

int main(int nNumberofArgs, char* pszArgs[])
{
  Employee s1("Tom", 1234);

  cout << "Calling fn()" << endl;

  fn(s1);

  cout << "Back in main()" << endl;

  return 0;
}

Result


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