How do I iterate safely and efficiently with std::array?

Iterating through a `std::array` in C++ can be done safely and efficiently using various methods provided by the standard library. Here are a few examples of how to achieve this:

1. Using a Range-Based For Loop

The range-based for loop is a concise way to iterate through the elements of a `std::array`.


        #include <iostream>
        #include <array>

        int main() {
            std::array arr = {1, 2, 3, 4, 5};
            for (const auto& element : arr) {
                std::cout << element << " ";
            }
            return 0;
        }

2. Using Iterators

You can also use iterators to traverse the `std::array`, which provides more flexibility for certain algorithms.


        #include <iostream>
        #include <array>

        int main() {
            std::array arr = {1, 2, 3, 4, 5};
            for (auto it = arr.begin(); it != arr.end(); ++it) {
                std::cout << *it << " ";
            }
            return 0;
        }

3. Using std::for_each

The `std::for_each` algorithm can be used for a more functional style of iteration.


        #include <iostream>
        #include <array>
        #include <algorithm>

        int main() {
            std::array arr = {1, 2, 3, 4, 5};
            std::for_each(arr.begin(), arr.end(), [](int element) {
                std::cout << element << " ";
            });
            return 0;
        }

How do I iterate safely and efficiently with std::array?

1. Using a Range-Based For Loop

2. Using Iterators

3. Using std::for_each

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How do I iterate safely and efficiently with std::array?

1. Using a Range-Based For Loop

2. Using Iterators

3. Using std::for_each

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Popular Topics

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