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list push_front() function in C++ STL

  • Difficulty Level : Basic
  • Last Updated : 25 Jun, 2018
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The list::push_front() is a built-in function in C++ STL which is used to insert an element at the front of a list container just before the current top element. This function also increases the size of the container by 1.


list_name.push_front(dataType value)

Parameters: This function accepts a single parameter value. This parameter represents the element which is needed to be inserted at the front of the list container.

Return Value: This function does not return anything.

Below program illustrate the list::push_front() function in C++ STL:

// CPP program to illustrate the
// list::push_front() function
#include <bits/stdc++.h>
using namespace std;
int main()
    // Creating a list
    list<int> demoList;
    // Adding elements to the list
    // using push_back()
    // Initial List:
    cout << "Initial List: ";
    for (auto itr = demoList.begin(); itr != demoList.end(); itr++)
        cout << *itr << " ";
    // Adding elements to the front of List
    // using push_front
    // List after adding elements to front
    cout << "\n\nList after adding elements to the front:\n";
    for (auto itr = demoList.begin(); itr != demoList.end(); itr++)
        cout << *itr << " ";
    return 0;
Initial List: 10 20 30 40 

List after adding elements to the front:
5 10 20 30 40
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