// re-sizing an array

#include <iostream>
using namespace std;

class RIA{
public:
  RIA(){ data = new int[10]; size=0; capacity=10;}
  RIA(RIA &source);
  ~RIA(){ delete [] data;}
  void insert(int n);
  void print();
  void operator=(RIA &source);
private:
  void resize();
  int *data;
  int size;
  int capacity;
};

RIA::RIA(RIA &source){
 size = source.size;
  capacity = source.capacity;
  
  data = new int[capacity];

  for(int i=0; i<size; i++){
    data[i] = source.data[i];
  }
}


void RIA::print(){
  for (int i=0; i<size; i++){
    cout << data[i] << " ";
  }
  cout << " S:" << size << " C:" << capacity <<endl;
}

void RIA::insert(int n){
  if (size < capacity){
    data[size] = n;
    size++;
  } else {
    // resize the array
    resize();
    // add value to end
    data[size] = n;
    size++;
  }
}

void RIA::resize(){
  capacity = capacity *2 +1;
  int *temp = new int[capacity];

  for(int i=0; i< size; i++){
    temp[i] = data[i];
  }

  delete [] data;
  data = temp;
}

void RIA::operator=(RIA &source){
  if (this == &source) return;
  delete [] data;
  size = source.size;
  capacity = source.capacity;
  
  data = new int[capacity];

  for(int i=0; i<size; i++){
    data[i] = source.data[i];
  }
}


main(){

  RIA ria;
  RIA testCopy;

  ria.insert(5);
  ria.insert(7);
  ria.insert(2);

  ria.print();

  for(int i=10; i<30; i++){
    ria.insert(i);
    ria.print();
  }

  testCopy = ria;
  cout << "copy:" << endl;
  testCopy.print();

  testCopy = testCopy;
  cout << "copy:" << endl;
  testCopy.print();

  RIA clone(testCopy);
  cout << "clone:" << endl;
  clone.print();

}