How to Initialize a List in C++ - Step by Step Examples

How to Initialize a List in C++ ?

Answer

To initialize a list in C++ using std::list, you can use the default constructor for an empty list or provide elements during the list's construction.

✐ Examples

1 Initialize an Empty List

In this example,

We use the default constructor of std::list to create an empty list of integers and assign it to the variable empty_list.
We print a message to indicate the list is empty.

C++ Program

#include <iostream>
#include <list>

int main() {
    std::list<int> empty_list;
    std::cout << "Empty List initialized." << std::endl;
    return 0;
}

Output

Empty List initialized.

2 Initialize a List with Elements

In this example,

We use the constructor of std::list and provide initial values to create a list of integers.
The list is assigned to the variable numbers.
We print the list's elements to standard output to verify its contents.

C++ Program

#include <iostream>
#include <list>

int main() {
    std::list<int> numbers = {1, 2, 3, 4, 5};
    std::cout << "List with Elements: ";
    for (int num : numbers) {
        std::cout << num << " ";
    }
    std::cout << std::endl;
    return 0;
}

Output

List with Elements: 1 2 3 4 5

Summary

In this tutorial, we learned How to Initialize a List in C++ language with well detailed examples.

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How to Initialize a List in C++ - Step by Step Examples

How to Initialize a List in C++ ?

Answer

✐ Examples

1 Initialize an Empty List

C++ Program

Output

2 Initialize a List with Elements

C++ Program

Output

Summary

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