/* Class 'Number' */

#include "Number.h"


// default constructor
Number::Number() {
  count++; // Count number of instances
}

// copy constructor
Number::Number(const Number &other) {
  count++; // Count number of instances
}

// destructor
Number::~Number() {
  count--; // Count number of instances
}


// return number of instances (static member function)
int Number::noOfNumbers() {
  return count;
}


int  Number::count = 0;  // initialise static member variable