C++ Usage and example of pop_front() function

C++ List (List)

C ++ The pop_front() function removes the first element from the list, so the size of the list will decrease by one.

The pop_front() function removes the first element, that is1.

Syntax

void pop_front();

Parameters

It does not contain any parameters.

Return value

It does not return any value.

Example

Let's look at a simple example

Example

#include <iostream>　　
#include<list>　　
using namespace std;　　
int main()
{
　　　　　list li={20,30,40,50};
　　　　li.pop_front();
　　　　list::iterator itr;
　　　　for(itr=li.begin();itr!=li.end();++itr)
　　　　cout<<*itr<<",";
　　　　return 0;
}

Output:

30,40,50

In this example, the pop_front() function removes the first element from the list, i.e., removes the element " 20.

C++ List (List)