Initializing from another List

7. Initializing the List using the fill() function

Another way to initialize a list is to use another list. In this, we provide iterators of the old list as arguments. The syntax for this is given below.

Syntax:

list<data_type>li(old_list.begin(),old_list.end());

Example:

C++

// C++ program to initialize the List
// from another List
#include<bits/stdc++.h>
using namespace std;
 
int main()
{
    // Initialising first list
    list<int> vect{ 10, 20, 30 };
    
    // Initialising the second list
    // from the first list
    list<int> li(vect.begin(), vect.end());
     
    // Printing the second List
    for (int x : li)
        cout << x << " ";
 
    return 0;
}

Output

10 20 30

Different Ways to Initialize a List in C++ STL

Prerequisite: List in C++

Lists are sequence containers that allow non-contiguous memory allocation The following are the different ways to create and initialize a List in C++ STL.

Initializing an empty List and pushing values one by one
Specifying List size and initializing all values
Initializing List like the arrays
Initializing a list from an array
Initializing a list from a vector
Initializing a list from another List
Initializing the List using the fill() function
Using a lambda expression and the generate() function:

Initializing from another List

C++

Different Ways to Initialize a List in C++ STL

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