// Prog: stack_test.cpp
// test the class stack from stack.h and stack.cpp

#include<iostream>
#include "stack.h"

int main() {
  ifmp::stack s1;
  s1.push (1);
  s1.push (3);
  s1.push (2);
  std::cout << s1 << "\n";  // 2 3 1

  ifmp::stack s2 = s1;
  std::cout << s2 << "\n";  // 2 3 1

  s1.push (5);
  s1.push (6);
  std::cout << s1 << "\n"; // 6 5 2 3 1
  std::cout << s2 << "\n"; // 2 3 1
  
  ifmp::stack s3;
  s3 = s1; 
  std::cout << s3 << "\n"; // 6 5 2 3 1

  s1.push (7);
  std::cout << s1 << "\n"; // 7 6 5 2 3 1
  std::cout << s3 << "\n"; // 6 5 2 3 1

  s3.pop ();				    
  std::cout << s3 << "\n"; // 5 2 3 1 
  std::cout << s3.top() << "\n"; // 5  
  std::cout << s3.empty() << "\n"; // 0

  for (int i=0; i<4; ++i) s3.pop();
  std::cout << s3.empty() << "\n"; // 1
}

// g++ -Wall -pedantic-errors stack.cpp stack_test.cpp -o stack_test