#include <iostream>
using namespace std;
const int SIZE = 10;
template <class StackType> class stack {
StackType stck[SIZE];
int tos;
public:
stack() { tos = 0; }
void push(StackType ob);
StackType pop();
};
template <class StackType> void stack<StackType>::push(StackType ob)
{
if(tos==SIZE) {
cout << "Stack is full.\n";
return;
}
stck[tos] = ob;
tos++;
}
template <class StackType> StackType stack<StackType>::pop()
{
if(tos==0) {
cout << "Stack is empty.\n";
return 0; // return null on empty stack
}
tos--;
return stck[tos];
}
int main()
{
stack<char> s1, s2;
s1.push('a');
s2.push('x');
s1.push('b');
s2.push('y');
s1.push('c');
s2.push('z');
for(int i=0; i<3; i++) cout << "Pop s1: " << s1.pop() << "\n";
for(int i=0; i<3; i++) cout << "Pop s2: " << s2.pop() << "\n";
stack<double> ds1, ds2;
ds1.push(1.1);
ds2.push(2.2);
ds1.push(3.3);
ds2.push(4.4);
ds1.push(5.5);
ds2.push(6.6);
for(int i=0; i<3; i++) cout << "Pop ds1: " << ds1.pop() << "\n";
for(int i=0; i<3; i++) cout << "Pop ds2: " << ds2.pop() << "\n";
return 0;
}
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