// Using a
constructor and destructor.
#include <iostream.h>
#include <conio.h>
#define SIZE 100
// This creates
the class stack.
class stack
{
int stck[SIZE];
int tos;
public:
stack(); // constructor
~stack(); // destructor
void push(int i);
int pop();
};
// stack's
constructor function
stack::stack()
{
tos = 0;
cout << "Stack
Initialized\n";
}
// stack's
destructor function
stack::~stack()
{
cout << "Stack
Destroyed\n";
}
void
stack::push(int i)
{
if(tos==SIZE) {
cout << "Stack is
full.\n";
return;
}
stck[tos] = i;
tos++;
}
int
stack::pop()
{
if(tos==0)
{
cout << "Stack
underflow.\n";
return 0;
}
tos--;
return stck[tos];
}
int main()
{
clrscr();
stack a, b; // create two stack
objects
a.push(1);
b.push(2);
a.push(3);
b.push(4);
cout << a.pop() << "
";
cout << a.pop() << "
";
cout << b.pop() << "
";
cout << b.pop() << "\n";
getch();
return 0;
}
