// demonstrates copy constructor with an object containing array
// Mikhail Nesterenko
// 11/2/2014


#include <iostream>

class MyClass{
public:
   MyClass(int); // regular constructuctor
   MyClass(const MyClass&); // copy constructor

   void addNum(int); // regular member function
private:
   int *d; 
   int size;
};


MyClass::MyClass(int n){
   size=n;
   d = new int[size];
   for(int i=0; i< size; ++i) d[i]=0;
}

MyClass::MyClass(const MyClass& org){

   size=org.size;
   d = new int[size];
   for(int i=0; i< size; ++i) 
      d[i]=org.d[i];
}

// adds "n" to every element of the array
void MyClass::addNum(int n){
   for(int i=0; i < size; ++i)
      d[i] += n;
}


// standalone function taking an object of MyClass by value
void otherfunc(MyClass newobj){
   // nothing is done in the function
} 

int main(){
   MyClass myobj(5); // constructor allocates dynamic array
   myobj.addNum(10); // adding ten to elements

   otherfunc(myobj);
}