C++ Usage and example of Deque pop_back()

C++ Deque (Double-ended Queue)

C ++ The Deque pop_back() function removes the last element from the deque container and the size of the deque is reduced by one.

Syntax

void pop_back();

Parameters

It does not contain any parameters.

Return value

It does not return any value.

Example

Let's see a simple example

Example

#include <iostream>
#include<deque>
using namespace std;
int main()
{
　　　　deque<int> d={1,2,3,4,5};
　　　　deque<int>::iterator itr;
　　　　d.pop_back();
　　　　for(itr=d.begin();itr!=d.end();++itr)
　　　　cout <<*itr << "  ";
　　　　return 0;
　　　　}

Output:

1　2　3　4

In this example, the pop_back() function removes the last element from the deque, that is5.

C++ Deque (Double-ended Queue)