How to Convert a List of Strings to a List of Integers in C++ - Step by Step Examples

How to Convert a List of Strings to a List of Integers in C++ ?

Answer

To convert a list of strings to a list of integers in C++, you can use a loop to iterate over each string and convert it to an integer using the std::stoi() function.

✐ Examples

1 Convert List of Strings to List of Integers

In this example,

We have a list of strings named string_list.
We iterate over each string in the list and convert it to an integer using the std::stoi() function.
We add each integer to a new list of integers.

C++ Program

#include <iostream>
#include <list>
#include <string>

int main() {
    std::list<std::string> string_list = {"1", "2", "3", "4", "5"};
    std::list<int> int_list;
    for (const auto& str : string_list) {
        int_list.push_back(std::stoi(str));
    }
    for (const auto& num : int_list) {
        std::cout << num << " ";
    }
    return 0;
}

Output

1 2 3 4 5

Summary

In this tutorial, we learned How to Convert a List of Strings to a List of Integers in C++ language with well detailed examples.

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