stakaray.cpp

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// stakaray.cpp
// a stack as a class
#include <iostream>
using namespace std;
////////////////////////////////////////////////////////////////
class Stack
   {
   private:
      enum { MAX = 10 };        //(non-standard syntax)
      int st[MAX];              //stack: array of integers
      int top;                  //number of top of stack
   public:
      Stack()                   //constructor
         { top = 0; }
      void push(int var)        //put number on stack
         { st[++top] = var; }
      int pop()                 //take number off stack
         { return st[top--]; }
   };
////////////////////////////////////////////////////////////////
int main()
   {
   Stack s1;

   s1.push(11);
   s1.push(22);
   cout << "1: " << s1.pop() << endl;  //22
   cout << "2: " << s1.pop() << endl;  //11
   s1.push(33);
   s1.push(44);
   s1.push(55);
   s1.push(66);
   cout << "3: " << s1.pop() << endl;  //66
   cout << "4: " << s1.pop() << endl;  //55
   cout << "5: " << s1.pop() << endl;  //44
   cout << "6: " << s1.pop() << endl;  //33
   return 0;
   }