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member functions:
vector::assign
vector::at
vector::back
vector::begin
vector::capacity
vector::clear
vector::empty
vector::end
vector::erase
vector::front
vector::get_allocator
vector::insert
vector::max_size
vector::operator=
vector::operator[]
vector::pop_back
vector::push_back
vector::rbegin
vector::rend
vector::reserve
vector::resize
vector::size
vector::swap


vector::pop_back

public member function
void pop_back ( );

Delete last element

Removes the last element in the vector, effectively reducing the vector size by one and invalidating all iterators and references to it.

This calls the removed element's destructor.

Parameters

none

Return value

none

Example

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// vector::pop_back
#include <iostream>
#include <vector>
using namespace std;
int main ()
{
  vector<int> myvector;
  int sum (0);
  myvector.push_back (100);
  myvector.push_back (200);
  myvector.push_back (300);
  while (!myvector.empty())
  {
    sum+=myvector.back();
    myvector.pop_back();
  }
  cout << "The elements of myvector summed " << sum << endl;
  return 0;
}

In this example, the elements are popped out of the vector after they are added up in the sum. Output:
The elements of myvector summed 600

Complexity

Constant.

See also

vector::push_back Add element at the end (public member function)
vector::erase Erase elements (public member function)