Demo: Overload (). : Parenthesis « Overload « C++

1. C++
2. Overload
3. Parenthesis

Demo: Overload ().

 
#include <iostream>
using namespace std;

class MyClass {
  int x, y, z; 
public:
  MyClass() { 
     x = y = z = 0; 
  }
  MyClass(int i, int j, int k) { 
     x = i; 
     y = j; 
     z = k;
  }
  MyClass operator()(int a, int b, int c);
  void show() ;
};

// Overload ().
MyClass MyClass::operator()(int a, int b, int c)
{
  MyClass temp;

  temp.x = x + a;
  temp.y = y + b;
  temp.z = z + c;

  return temp;
}

void MyClass::show()
{
  cout << x << ", ";
  cout << y << ", ";
  cout << z << endl;
}

int main()
{
  MyClass object1(1, 2, 3), object2;

  object2 = object1(10, 11, 12); // invoke operator()

  cout << "object1: ";
  object1.show();

  cout << "object2: ";
  object2.show();

  return 0;
}          
         
  

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