// Soln8_6.cpp
  
  include <iostream>                   // For stream input/output
  
  using std::cout;
  using std::endl;
  
  class CStack
  {
  public:
     CStack(int n = 10);
     ~CStack();
     void push(int i);
     int pop();
     void print();
  private:
     int* pList;
     int size;
     int next;
  };
  
  CStack::CStack(int n) : next(0), size(n)
  {
     pList = new int[size];
  }
  
  CStack::~CStack()
  {
     delete [] pList;
  }
  
  void CStack::push(int i)
  {
     if (next < 99)
        pList[next++] = i;
  }
  
  int CStack::pop()
  {
     return pList[--next];
  }
  
  void CStack::print()
  {
     cout << '[';
     for(int i=next-1 ; i>=0 ; i--)
        cout << ' '<< pList[i];
     cout << " ]\n";
  }
  
  int main()
  {
     CStack s(20);
  
     s.print();
  
     s.push(5);
     s.push(10);
     s.push(8);
  
     s.print();
  
     cout << "top of stack=" << s.pop() << endl;
  
     s.print();
  
     return 0;
  }