stack::pop


public member function
void pop ( );

Remove element

Removes the element on top of the stack, effectively reducing its size by one. The value of this element can be retrieved before being popped by calling member stack::top.

This calls the removed element's destructor.

This member function effectively calls the member function pop_back of the underlying container object (such as deque::pop_back).

Parameters

none

Return value

none

Example

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
// stack::push/pop
#include <iostream>
#include <stack>
using namespace std;

int main ()
{
  stack<int> mystack;

  for (int i=0; i<5; ++i) mystack.push(i);

  cout << "Popping out elements...";
  while (!mystack.empty())
  {
     cout << " " << mystack.top();
     mystack.pop();
  }
  cout << endl;

  return 0;
}


Output:
Popping out elements... 4 3 2 1 0



Complexity

Constant.

See also

stack::push Add element (public member function)
stack::empty Test whether container is empty (public member function)